Rigid flexible coupling The primary difference is that flexible couplings allow for some misalignment between the Jan 13, 2025 · To address this challenge, this paper proposes a novel type of rigid-flexible coupling robot, which increases the stiffness of the robot while ensuring the reachability within a narrow space. Nov 1, 2014 · However, the rigid–flexible coupling mechanism and modeling as well as its solution strategy for rotating structures remain in extensive study, refered to Shabana [2], Wasfy and Noor [3], Schielen [4], etc. Nov 1, 2022 · The previous studies on the dynamic characteristics of chain ramming mechanism have ignored the linkage effect of factors such as the elastic deformation of components, transmission clearance, stiffness of support body. By adding an additional moving platform, the spatial direction of the cable can be changed to prevent the possible Jun 1, 2020 · The consistent results of the simulation and experiment indicates the rigid-flexible coupling dynamic simulation method is rational and effective for evaluating contact acting effects of the open mechanism on the multilayer fruit paper bags. Mar 2, 2025 · In this study, we combined a rigid parallel structure with a soft origami structure to develop a prototype for rigid-flexible coupling building blocks that encompass all basic motion Jan 13, 2025 · To address this challenge, this paper proposes a novel type of rigid-flexible coupling robot, which increases the stiffness of the robot while ensuring the reachability within Jul 13, 2023 · Rigid shafts transfer more torque but require no misalignment between the shafts. 研究以一个由中心刚体、柔性梁及末端质量组成的刚柔耦合系统为对象,建立了精确的一次近似的刚柔耦合动力学方程,在该模型中计及了结构阻尼及风阻的影响。 Nov 1, 2020 · The rigid–flexible coupling analysis revealed that the larger the pose angle, the larger the adjustable range of the stiffness. Liu HB, Wang HY, Shi YS, et al. These examples focus on rigid multibody problems with inverse dynamics, kinematic closed-loop and frictional contact, while cases that consider deformation effects are currently in progress. C) Structural diagram of a two-level building block with the opposite chirality. Author links open overlay panel Wenkang Wang a b, Zongtao Qu a b, Through the cross-linking effect of silane coupling agent, rGO and ppy-derived carbon film synergistically anchored HCNS spheres Jan 24, 2025 · 6 Rigid-Flexible Coupling Control Method for Flexible Spacecraft. May 1, 2024 · In summary, a new series of rigid-flexible coupling network SPEs (RFN-SPEs) were designed and prepared from soft PEG and rigid crosslinkers containing the benzene structure. This paper is devoted to virtual prototyping-based approach to a fuzzy Failure Mode, Effects, and Criticality Analysis (FMECA) with the consideration of rigid In this first installment of a weekly 3-part series on flexible vs rigid couplings, R+W America’s Andy Lechner shares his insight into the best options for different applications. Comparison of the kinematics and dynamics response between rigid-flexible coupling system and pure rigid system implies that the flexible part causes a The traditional oscillators are limited by their material characteristics and structural configuration, exhibiting a low oscillation frequency and low output power under pressure input. 1 Introduction . Up to 130 KNm and 220 mm bore diameters. Jul 1, 2021 · GPE will be a promising choice for high safety LIBs, especially for flexible LIBs. Mingchi Jiang, Mingchi Jiang. 3 Contributions of this paper To address narrow space manipulation, this paper introduces a novel rigid-flexible coupling robot and delves into the Nov 22, 2024 · Rigid-Flexible Coupling Realized by Synergistic Engineering of the Graphitic-Amorphous Architecture for Durable and Fast Potassium Storage. If significant radial or axial misalignment occurs, high stresses may result Mar 29, 2024 · Flexible couplings and rigid couplings each have their distinct advantages and applications in power transmission systems. A flexible coupling is a more complex mechanism compared to Rigid coupling. This approach enables the convenient and precise calculation of the natural characteristics for designing an attitude control law for the spacecraft while simultaneously suppressing the Nov 13, 2024 · A rigid–flexible coupling system is a mechanical or structural system in which rigid bodies and flexible elements are interconnected, leading to dynamic interactions between the rigid and deformable components. doi: 10. In this paper, a cable-driven serial-parallel manipulator is analyzed, and the rigidflexible coupling Oct 1, 2024 · Rigid-flexible coupling multistage carbon composite materials based on hybrid crosslinking as anodes for ultra long-cycling lithium-ion batteries. On-orbit identification of flexible parameters such as modal frequency is very important for attitude control. Firstly, the negative Feb 15, 2025 · A novel interphase with “rigid-flexible coupling” crosslinked network is established by introducing supramolecule pseudopolyrotaxane (PPR) on the high modulus carbon fiber (HMCF) surface to improve interfacial properties of CFRPs. Then, the differential equation of motion of beam element is derived based on finite element method. Although the riser-LMRP/BOPs and the subsea wellhead system are considered as two Dec 3, 2022 · This paper proposes a long-stroke rigid-flexible coupling motion stage (RFCMS) that employs flexure hinges to compensate the friction dead zone through elastic deformation. 11). Flexible fins provide excellent maneuverability. A flexible coupling has limited strength but is Oct 19, 2018 · In this study, we used global analytical modeswfny (GAMs) to develop a rigid-flexible dynamic modeling approach for spacecraft with large flexible appendages (SwLFA). Considering the second-order coupling terms of deformation in the longitudinal and transverse deflections, the exact nonlinear strain-displacement relations for a beam element are described. In this Article, inspired by bubble wraps in our life, a bubble-wrap-like carbon sheet Oct 24, 2024 · The rigid-flexible coupling cable system under large deformation is studied, and the beam element from absolute node coordinate formulation is used to establish flexible cable body of the system. com Abstract. For many kinds of polymer electrolytes, their ionic conductivity, electrochemical window, interfacial stability, and Jan 1, 2013 · In the present research two different whole vehicle multibody models are established respectively, including rigid and rigid-flexible coupling multibody vehicle models. Rigid coupling; Flexible coupling; A flexible coupling can accommodate a slight misalignment between shafts (up to 0. Subsequently, a paint deposition model for the spray gun was established, and the influence of process constraints on spraying quality was analyzed. Based on Lagrange's principle, the ordinary differential equations of motion and partial differential equations of flexible parts of a three-dimensional Sep 1, 2017 · A systematic dynamic modeling methodology is presented to develop the rigid-flexible coupling dynamic model (RFDM) of an emerging flexible parallel manipulator with multiple actuation modes. This results in a slow locomotion speed for the robot. To ensure the accuracy of dynamic analysis, a rigid-flexible coupling model was put forward and established, enabling the acquisition of the load responses of flexible box and the dynamic characteristics Oct 18, 2015 · rigid-flexible coupling systems刚柔耦合系统 1. The shear strains formulated May 4, 2023 · Rail vehicles generate huge longitudinal impact loads in collisions. In this paper, we studied the temperature changes over time and the wear of a linear rolling guide (LRG) in a rigid–flexible coupling motion stage (RFCMS), both analytically and experimentally, and May 6, 2017 · The dynamics of spatial parallel manipulator with rigid and flexible links is explored. The pedestals of this robot are movable, and the moving platforms inside the robot is driven by the cables and electric cylinder coupled. Chapter; First Online: 16 September 2021; pp 53–75; Cite this chapter; Download book PDF. 11728/cjss2019. By virtue of assumed mode method, the general dynamic model of an arbitrary flexible body with any number of lumped parameters is derived in an explicit closed form, Mar 10, 2019 · There are two types of couplings. ; A rigid coupling is simple and inexpensive while the flexible coupling is comparatively costlier due to additional parts. 1, the spacecraft includes a rigid body, a partially filled spherical tank, and a beam-like appendage. Description. Moreover, by saving the complicated pore-regulating procedure, the as-prepared large-scale feasible rigid-flexible coupling PVAc/PVDF-HFP/SiO 2 based GPE provides useful insights for upgrading hot calendar “Bellcore” technology. To date, “rigid–flexible coupling” has been widely applied in gel and solid polymer electrolytes. Furthermore, the aerogel exhibited remarkable Sep 1, 2017 · A systematic dynamic modeling methodology is presented to develop the rigid-flexible coupling dynamic model (RFDM) of an emerging flexible parallel manipulator with multiple actuation modes. However, considering soft robots’ flexibility and bearing Dec 4, 2023 · ASM wrist is composed of rigid-flexible coupling structure with three bellows and a spindle, which generates continuous wrist pitching. On the one hand, rigid crosslinkers provide the same amount of active crosslinking points with smaller molecular weight compared with soft crosslinkers, therefore leading Oct 6, 2018 · However, current researches always focus on rigid product, while the product is always a rigid-flexible coupling multibody system, which could affect the accuracy of reliability analysis. In this configuration, each module is composed of a SPA Aug 16, 2024 · At Aalberts integrated piping systems, our innovative Shurjoint brand stands out for its top-of-the-line grooved products, including both rigid and flexible grooved pipe couplings. In order to get insights into the rigid–flexible coupling nature, a simple system composed of a mass fixed to a rotating flexible rod Jun 20, 2022 · Dynamics of two-dimensional flow past a rigid flat plate with a trailing closed flexible filament acting as a deformable afterbody are investigated numerically by an immersed boundary-lattice Boltzmann method for the fluid flow and Jul 1, 2022 · The rigid-flexible coupling dynamic model of the system is established by Jourdain's velocity variation principle and the forward recursive construction formulation for flexible multibody dynamics. [18] proposed the rigid-flexible coupling dynamic simulation method of planetary gear transmission based on Multi-Flexible-Body Dynamics (MFBD) technology, which was used to obtain the Sep 16, 2021 · Rigid-Flexible Coupling Dynamics and Control of Flexible Spacecraft with Time-Varying Parameters. Simulations were performed using the experimental roller Dec 12, 2024 · The dynamic response of the box and suspension system is one of the most important factors affecting the vibration and noise of the washing machine. However, the dynamic modeling and analysis of clustered tensegrity structures with the significant characteristic of rigid-flexible-soft coupling have great Mar 1, 2025 · Specifically, the rigid-flexible coupling model ensures that the robot achieves maximum relative stiffness across different poses, thereby enhancing the system's overall performance. Considering the high aminolysis reactivity of cyclic carbonate units on PVC, it is evident Feb 1, 2024 · The rigid flexible coupled contact biomechanical model for the skin is the first step that urgently needs to be considered in the process of medical clinical operations. If unreasonable matching exists between the compressive strength of the intermediate coupler and the structural strength of the car body, the risk of car body structure damage and train derailment will increase. Simulation examples of the flexible beam with prescribed rotation and free rotation Oct 15, 2024 · DOI: 10. Feb 6, 2024 · The manta ray, exemplifying an agile swimming mode identified as the median and paired fin (MPF) mode, inspired the development of underwater robots. However, the flexible joints of cable-driven manipulators exhibit rigid-flexible coupling characteristics, posing challenges for their modeling and accurate control. Based on the principle of energy equivalence, the flexible support truss of the RFC structure is Feb 10, 2025 · The tethered Unmanned Aerial Vehicle (UAV) system consists of a cable and a UAV, forming a rigid-flexible coupled structure that can produce complex dynamics, thereby challenging the flight controller's ability to manage the system effectively. The results demonstrated Jan 1, 2025 · This synergistic rigid-flexible coupling structure endowed the aerogel with an exceptionally low thermal conductivity of 26. 5-degree angular misalignment and 5 mm axial misalignment) but a rigid coupling cannot tolerate any Nov 15, 2020 · The purpose of this paper is to take a rigid-flexible coupling multibody system, that is a sail mounted hydroplanes system of an underwater vehicle, and introduce an efficient modeling method to perform linear and nonlinear hydroelastic simulations. Firstly, a spatial beam element model for finite element analysis is established. Rigid couplings are suitable when precise alignment of two shafts is required. Advantages Nov 15, 2017 · The former equivalent method for multiple rigid body system of tower crane is increasingly difficult to meet the application requirements. [57] for insight into the vibration of the solar-array multibody system and satellite Nov 14, 2023 · This article reviews the basics of grooved pipe couplings and details the differences between a rigid and flexible coupling. Jan 21, 2025 · Therefore, for a rigid-flexible coupling robot, using rigid-dominated control (RDC) methods for localization and pose alignment of target objects is considered a potential method. 空间科学学报, 2019, 39(5): 684-693. B) Anatomy of muscle fibers in an elephant trunk. Herein, a scalable strategy is reported to develop ultralight, superelastic, and washable micro/nanofibrous sponges (MNFSs) with a rigid-flexible coupling architecture created by Modeling Methods of RigidFlexible Coupling Dynamics HONG Jia-zhen, LIU Zhu-yong (Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai 200240, China) Abstract Figure/Table References Related Citation (0) | Add to my Add to This paper for the first time reports a piezoelectric microelectromechanical system (MEMS) speaker with a rigid-flexible-coupling (RFC) actuation layer, which not only improves the sound pressure level (SPL) in low frequency but also eliminates the acoustic loss of the unsealed vibration membrane compared to the state of the art. Based on the proposed model, the static load distribution and dynamics response for the device before and after separation were investigated extensively. State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology The research of humanoid multi-fingered hand aiming to be applied to people's daily life, but they are faced with the main contradiction between simplicity and functionality. Herein, we propose a novel rigid-flexible coupling humanoid multi-fingered hand comprising finger and palm. Specifically, based on the need for a motion stage with a compact structure, this paper proposes a new rigid-flexible coupling structure (RFCS) design with a horizontally installed linear motor May 21, 2023 · [Show full abstract] flexible components (classical cables) lead to a dynamic model that has the characteristic of rigid-flexible coupling, which severely limits the efficiency of dynamic Jul 25, 2022 · Dynamics of two-dimensional flow past a rigid flat plate with a trailing closed flexible filament acting as a deformable afterbody are investigated numerically by an immersed boundary-lattice Mar 10, 2022 · The rigid-flexible coupling dynamic equation of the mechanism is derived by the Lagrange multiplier method and solved by the generalized α method and Newton–Raphson iteration method combined 2. Starting from the theory of continuum mechanics and based on the Mindlin plate theory, the meshless radial point interpolation method (RPIM) is used to discretize the deformation field of the rectangular plate. Mar 10, 2017 · Flexible coupling couple with rotating members such as motors and driveshafts, while allowing misalignment in either angular or parallel offset orientation while rigid coupling couple with rotating members such as shafts. However, near a pose angle of 0°, the adjustable stiffness bandwidth is small, which necessitates improvements for the mechanism in future. 1108/ec-10-2023-0741 Corpus ID: 273329389; Design and kinematics of a novel rigid-flexible coupling hybrid robot for aeroengine blades in situ repair @article{Wu2024DesignAK, title={Design and kinematics of a novel rigid-flexible coupling hybrid robot for aeroengine blades in situ repair}, author={Mengli Wu and Yilong Xu and Xuhao Wang . , rigid-flexible coupling manipulator (RFCM). The validity of the dynamic model is verified by comparing results with ADAMS. The former is all composed by rigid bodies while in the later model, the flexible rear suspension is built based on the finite element method (FEM) and mode superposition method May 1, 2016 · The complete rigid-flexible-thermal coupling model can show the coupling effect of both the rotational motion and elastic deformation on the temperature gradient, therefore, it can reveal the thermally induced fluttering effect, which should be paid attention to during the attitude maneuver of the spacecraft. Through the dynamic analysis of simplified 3-link structure in space, different stiffness coefficients of flexible joint are given, and Aug 3, 2024 · Cable-driven manipulators find applications in medical care, housekeeping services, and various other scenarios. This excerpt was taken from Lechner’s presentation during the Jun 21, 2022 · This article reviews the basics of grooved pipe couplings and details the differences between a rigid and flexible coupling. Mech Sci Technol 32(1):150–156 Mar 2, 2025 · Rigid-flexible coupling building block with all basic motion patterns. Compared with the other macro-micro composite stage， it greatly simplified the design of mechanical structure and motion control system. Based on nonlinear constitutive relation and nonlinear strain-displacement relationship, and using exact expression of curvature, dynamics variational equations for an elasto-plastic beam with large deformation were established using virtual Sep 1, 2022 · Inspired by the rigid-flexible coupling strategy originating from Chinese traditional Tai Chi, PVC segments as the rigid unit and amorphous POEA motifs as the flexible unit were chosen to synergistically achieve both high modulus and elasticity of SPEs. Appl Math Model 2014; 38: 4985–4994. J Vib Shock 3(5):175–179, 201. Based on the rigid-flexible coupling finger designed in this paper, the mechanical deformation of rigid Sep 16, 2021 · The rigid-flexible coupling dynamic models of the appendage and the whole system have been established in this chapter, which is the basis of the subsequent dynamic analysis and control system design. Mar 3, 2025 · In this paper， a single drive rigid-flexible coupling positioning stage combined with macro- micro composite structure was proposed. State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology Jan 10, 2022 · Nanofibrous sponges enable promising potentials in warmth retention but are impeded by short service life and nonwashability, owing to their inadequate mechanical properties. Research on rigid–flexible coupling systems represents a critical subfield within FSI, primarily focusing on accurately describing Mar 10, 2022 · The rigid-flexible coupling dynamic equation of the mechanism is derived by the Lagrange multiplier method and solved by the generalized α method and Newton–Raphson iteration method combined. Among existing studies, the coupling interaction behaviors between subsystems are ignored by separately calculating the dynamic response of every single stage. Jul 11, 2007 · In this paper, rigid-flexible coupling dynamics is extended to a hub-beams system with three-dimensional large overall motion. 1. Birds improve their aerodynamic performance and flight maneuverability through wing folding and deformation. Cost: Rigid couplings are more affordable than flexible couplings, which tend to have a high cost. Al-Solihat and Nahon (2018) presented a 9-DOF flexible multibody dynamic model, including the motions of the Feb 13, 2022 · This paper presents a rigid-flexible composite of bionic hand structure design scheme solution for solving the problem of low load on the soft gripping hand. This method helps minimize unnecessary vibrations caused by stiffness fluctuations. To achieve high-accuracy location in a narrow space, kinematic and control methods are proposed. By virtue of assumed mode method, the general dynamic model of an arbitrary flexible body with any number of lumped parameters is derived in an explicit Feb 21, 2019 · linear rigid-flexible coupling effects in FOWTs are more distinct, but the related researches are scarce. e. Piezoelectric materials with electromechanical coupling phenomenon have great Nov 11, 2022 · In this paper, a rigid–flexible coupling collision model between the harvester and the blueberry plant was established based on the L-N nonlinear spring damping model (describing the collision force model between two colliding objects, consisting of the nonlinear spring and the damper) and improved the Coulomb model (the tangential collision Dec 12, 2024 · First, a 7-degree-of-freedom rigid-flexible coupling serial spray painting robot system is introduced, which includes a motion decoupling mechanism and a tension amplification mechanism. Hence, the work of the paper includes: Oct 11, 2023 · The rigid, flexible coupling suction cup model with the embedded bone network can achieve low pre-pressure adhesion, providing inspiration for the design of novel underwater adhesion systems and adhesion-crawling robots. In addition, currently, more and more control strategy is applied to the flexible multi-body system [2–5 Jul 5, 2023 · Although there are many research results on variable stiffness, the coupling characteristics of deformation and variable stiffness need be studied more deeply [25,26]. Google Scholar. Sep 15, 2024 · Compared to the rigid polyimide binders, rigid-flexible coupling strategy improves cycling stability, remaining a capacity of 2170 mAh/g at 2 A/g after 200 cycles and exhibiting stable cycling for over 750 cycles with a capacity limitation of 1500 mAh/g. In Section 3, three rigid-flexible coupling models of varying lengths are validated in the frequency domain, with one example selected for comparison with Comsol and Adams to demonstrate the feasibility and accuracy of the proposed model in time domain analysis, while also providing an in-depth analysis of the rigid-flexible coupling effects in Dec 1, 2024 · In this paper, a hierarchical-bistable hybrid metamaterial with rigid–flexible coupling design is proposed, demonstrating excellent mitigation performance and protection against multiple impacts. Rigid couplings provide a rigid connection; the two shafts are firmly Mar 1, 2025 · Here, the dynamic parameters are same to the parameters of the rigid-flexible coupling nonlinear dynamic model and are listed in Table. The rigid flexible dynamics model of a hub and multiplate system was proposed by Yuan et al. 28. Many of our precision couplings are designed with our unique Fairloc® Hub design, including the Miniature Fairloc® Bellows Coupling and the Neo-Flex Coupling. Five indexes, including scientific index, general index, identifiable index, compatible index and efficient index, were proposed to evaluate the existed modeling The rigid flexible coupling system with a mass at non-tip position of the flexible beam is studied in this paper. Google Scholar Zheng YQ, Wang SM, Sui LQ (2013) Research on rigid-flexible coupling vibration characteristics of truck cranes. Nov 1, 2023 · Based on microscopic characterization, FEA, and comparison of varying models, we report a bioinspired rigid-flexible coupling structure based on the structure and layout of dragonfly wing and discuss about the mechanism underneath the superior stability of bioinspired rigid-flexible coupling structure, which will provide great potential to make May 1, 2016 · In this investigation, a complete rigid-flexible-thermal coupling dynamic model, which considers the influence of both the rotational motion and the elastic deformation on the intensity of the heat flux applied on the elastic bodies, is proposed, and then based on virtual work principle and floating frame of reference formulation, the coupled May 25, 2010 · Abstract: Rigid-flexible coupling dynamic performance of an elastoplastic beam with large deformation was investigated. Rigid-flexible coupling dynamic analysis on a mass attached to a rotating flexible rod. In the model established in this paper, of which the effectiveness is verified by comparing with the experimental data, the influence of the main Jul 19, 2024 · Solving a rigid–flexible coupling nonlinear dynamic equation necessitates updating dynamic quantities in each time step, which is the main factor that hampers computational efficiency. The peak value of the vibration acceleration frequency response at the evaluation points mainly occurs at the rotation frequency, meshing Sep 8, 2023 · Why choose rigid or flexible couplings for fire sprinklers and other fire protection systems? Grooved pipe couplings are some of the most important equipment in fire protection, allowing quick and water-tight connections without pipe threads, flanges, or welding. Coupled with the time-domain unsteady Jun 29, 2024 · Yan SJ, Peng J, Liu Z (2018) Rigid-flexible coupling dynamic model for slewing hoisting of large flexible boom system. , available at best price in India. We have various styles of Mar 19, 2022 · As shown in Fig. Crossref. However, there has been currently no effective biomechanical contact model available. However, existing research on jumping robots has not demonstrated the effect of multiflexibility links on the jumping performance. Skip to navigation Skip to content +91-860-860-6600 [email protected] Free shipping over INR 1999; 3% Additional Discount over INR 10000; Shop; My Account; All Products; Recent Products; Feb 1, 2025 · The rigid-flexible coupling vibration of composite box structure in new energy hydrogen-electricity aircraft with complex circumstance: Theoretical formulation and experiment. To verify the feasibility of the proposed mechanism, a physical prototype Aug 1, 2023 · For rigid-flexible coupling dynamic models of a FOWT, Dinh and Basu (2015, 2016) proposed a 7-DOF dynamic model for a spar FOWT to investigate the structural in-plane vibration reduction by passive and semi-active control devices. Before separation, the Feb 1, 2023 · To this end, a rigid-flexible coupling motion stage (RFCMS) with compound flexure hinges (CFHs) and a single drive is designed to simultaneously achieve large stroke and nanoscale precision in this work. To avoid the clinical staff from being affected by the virus, we developed a 9-degree-of-freedom (DOF) rigid-flexible coupling (RFC) robot to assist the COVID-19 OP-swab Apr 9, 2020 · Potassium-ion energy-storage devices are highly attractive in the large-scale energy storage field, but the intercalation of large K ions greatly worsens the stability of electrode structures and solid electrolyte interphase (SEI) films, causing slow reaction dynamics and poor durability. The linear elongate characteristics of bellows and pitching performance of ASM wrist are simulated by finite element modeling (FEM) method and tested experimentally. The outbreak of novel coronavirus pneumonia (COVID-19) has caused mortality and morbidity worldwide. Rigid couplings are designed to connect two shafts together so that no relative motion occurs between them (see Figure 7. The purpose of this study is to propose an appropriate ri-gid-flexible coupling dynamic model and to investigate the coupling rigid-flexible effects of the floating wind turbine system. Nov 22, 2024 · Rigid-Flexible Coupling Realized by Synergistic Engineering of the Graphitic-Amorphous Architecture for Durable and Fast Potassium Storage. The designed BQSPNs with abundant quinone/imine functionalities that decorated with rigid–flexible coupling chains could act as multi-redox active sites and engage in hydrogen bonding and π-π interaction, and consequently There are two general types of coupling; rigid and flexible. In this paper, a Watt-type one degree-of-freedom six-bar Oct 10, 2024 · By simultaneously considering the supported truss configuration optimization and optimal attitude–vibration control in rigid–flexible coupling (RFC) structure, this study proposes a novel integrated uncertain optimal structure-control design strategy with interval uncertainties. The bionic hand was designed based on the Fast Pneumatic In order to obtain the vibration and noise characteristics of the high-speed double helical planetary gear system, a rigid-flexible coupling dynamic model is established, and the dynamic response of the nodes on the surface of the gearbox is calculated. Not only coupling between the large overall motion and the bending deformation, but also coupling between the large overall motion and the torsional deformation are taken into account. The human hand is a natural rigid–flexible coupling model, and the flexible collaboration of the bones and tendons of the hand ensures good fit and stable grasping of complex-shaped objects within a certain weight range [Reference Molnar, Esteve-Altava, Rolian and Diogo 35, Reference Olikkal, Pei, Adali, Banerjee and This study proposes an uncertain optimal attitude–vibration control method for rigid–flexible coupling satellites with reliability constraints based on the interval dimension-wise analysis. The effect of rigid body motion on liquid and flexible appendages is expressed Mar 6, 2023 · The local heat and wear generated due to friction in a precision motion stage in electronic packaging equipment have a significant impact on its positioning precision. Oct 1, 2024 · A rigid-flexible coupling model for the planetary gear system is developed, in which the flexibility of the ring gear, input shaft, and carrier are considered. Subsequently, rotational modal projection is proposed to simulate the meshing of the flexible ring gear at any angle of planet gear revolution, and the coordinate transformation Jan 1, 2025 · The rigid-flexible coupling dynamic modeling of the helicopter tail transmission system is carried out using Adams software as shown in Fig. Based on the floating coordinate method and finite element method， the Sep 5, 2024 · The flexible system of wind turbines refers to the components such as blades, towers, and rotor shafts that are subjected to external forces such as wind loads, inertial forces, and gravity during operation, resulting in deformation and vibration. Oropharyngeal-swab (OP-swab) sampling is widely used for the diagnosis of COVID-19 in the world. This type of aircraft can stabilize the fuselage horizontally or glide through the air using wing flaps, giving it the advantages of being lightweight, mechanically efficient, and having low energy consumption. This paper develops a rigid-flexible coupling approach to predict the dynamic performance of the excavator, including the stress distribution and stress diagram of curves. We also explain when and how NFPA 13 : Standard for the Installation of Fire Sprinkler Feb 1, 2011 · The rigid-flexible coupling dynamic equation of the mechanism is derived by the Lagrange multiplier method and solved by the generalized α method and Newton–Raphson iteration method combined School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China * Corresponding author: yuan-yong-liang@163. 005. Using the theory about mechanics problems in a non-inertial coordinate system and the subsystem modeling principle, the dynamic equations of the rigid flexible coupling system with dynamic stiffening are established via material mechanics and the angular momentum principle. Inspired by this, we designed a flapping wing with rigid-flexible coupling folding and angle of attack (AOA) adjustment in this paper. By understanding the differences between these two options and carefully assessing your specific requirements and operating conditions, you can make an informed decision to choose the right coupling for your application. Coupling type such as, Motor coupling, solid aluminium coupling, flexible coupling, rigid couplings. Download book EPUB. And simplified models for flexible appendages A model for virtual simulation analysis of the rigid-flexible coupling of a shearer has been developed with the objective of addressing problems associated with lifetime mismatch and low reliability of pin rows of a scraper conveyor and the corresponding support mechanism of a shearer. Modular Bellows Couplings can be configured to accommodate various shaft diameters and provide backlash-free torque Jan 20, 2021 · Couplings are rigid or flexible according to the alignment accuracy and torque requirement. Specifically, the leafspring model is established by discrete beam element method, the flexible frame model is modeled by importing the modal neutral file (MNF), and the sampling period is set as 0. 2 Method and Dec 12, 2024 · for Rigid-Flexible Coupling Spray -Painting Robot Integrated with Coating Process Constraints Feng Xu1, Bin Zi1,2*, Jingyuan Wang 1 and Zhaoyi Yu1 Abstract Robot-automated spraying is widely used in various elds, such as the automotive, metalworking, furniture, and aero - space industries. Dec 17, 2020 · Rigid couplings work best for high-torque requirements, shaft support applications, and push-pull use cases. The number of equivalent mechanism units can be determined based on constraints such as the workspace and the Flexible and rigid couplings. Robotic manta typically comprises a central rigid body and flexible pectoral fins. It is also concluded that the rigid Dec 19, 2024 · Using the selected coupling agent as a flexible sizing agent and inorganic nano-SiO 2 as the rigid component, two types of interfaces were developed: a homogeneous organic/inorganic hybrid interface and a gradient-modulus structure, which were fabricated via direct deposition and in-situ growth methods, respectively. 9 mWm −1 K −1, demonstrating superior thermal insulation across a broad temperature spectrum, coupled with high-temperature resistance (441. 8 °C) and flame retardancy. Firstly, the three-dimensional models of the components in healthy and faulty states are established, and the assembly model of the system is constructed using Solid work software. We also explain when and how NFPA 13: Standard for the Installation of Fire Sprinkler Systems (2022 edition) requires using flexible couplings for seismic protection. 05. The new bionic spine has a bio-variable stiffness with flexible bending, and some key technologies such as the bionic driving and Dec 31, 2017 · Hao et al. In case of temperature increase Sep 11, 2019 · Liu ZF, Ye P, Guo XW, et al. It is clearly elucidated for the first time that, dynamic stiffening is produced by the coupling For flexible wing aircraft, the elastic motion of flexible wing and the rigid motion of aircraft were strongly coupled; a dynamic model of flexible wing aircraft was established based on the Lagrange equations. To suppress the resonance of CFHs and deal with nonlinear Oct 1, 2023 · 2) A multistage rigid-flexible model that consider the flexibility of shafts and couple behaviors between subsystems should be established and solved based on analytical method. The friction dead zone is isolated by utilizing the bending deflection of CFHs. It can Jun 15, 2007 · In this paper, a moving flexible beam, which incorporates the effect of the geometrically nonlinear kinematics of deformation, is investigated. Considering the high aminolysis reactivity of cyclic carbonate units on PVC, it is evident Jul 13, 2023 · Flexible couplings operate similarly to rigid couplings, transmitting torque from one shaft to another so both shafts move in unison. Our design utilizes the unique molecular necklace structure of PPR composed of β-cyclodextrin (β-CD) and Mar 2, 2025 · Rigid-flexible coupling building block with all basic motion patterns. The aim of the flexible coupling is to transfer motion between two shafts on the same axis whilst accounting for possible misalignments. 2 Robust H∞ Attitude Control Method The rigid flexible coupling system with a payload at non-tip position of the flexible beam is studied in this paper. Chapter. Structural design of gripper for casting sorting robot. Jan 1, 2024 · The obtained rigid-flexible coupling dynamics model of the riser-LMRP/BOPs-wellhead system was numerically solved by the Newmark method, as this method could avoid any overlapping applications and adapt to nonlinear response analysis well (Liu, 2014; Ma, 2017). Multi-body dynamic modelling and simulation of the torsional vibration system of converters based on rigid-flexible coupling. It is necessary to consider the motion of liquid and flexible appendages in the dynamic reference system which is a rigid body fixed reference Oxyz with its origin fixed at O. The high mass loading silicon anodes, micron-sized silicon oxide electrodes and the full In this paper, the modeling theory of rigid-flexible coupling dynamics of aflexible beam with three-dimensional large overall motion is studied. Herein, a four-stage rigid–flexible coupling finite element model of the coupler is established To solve these problems, in this letter, we proposed a novel structure of continuum manipulator that couples with rigid and flexible structure, i. To model the complex uncertain control system, multi–source uncertainties in rigid–flexible coupling satellites are quantified to interval parameters. Instead, installers simply butt the ends of pipes together and seal them with a In this paper, a rigid-flexible coupling driven parallel spraying robot which can be used in large curved surface is presented. Using the theory about mechanics problems in a non-inertial coordinate system, the dynamic equations of the rigid flexible coupling system with dynamic stiffening are established. 1. Author links open overlay panel Wen-Rui Zhao a, Xu-Yuan Song a, Jin-Tong Han b, Xiao-Dong Yang a, Ye-Wei Zhang a. . The demand of establishing rigid-flexible coupling dynamic model of tower crane is more urgent. It s well known that the traditional hybrid-coordinate model of rigid-flexible coupling systems, i. Therefore, this study develops an innovative framework that combines knowledge-based and data-driven solutions, for which a data-driven numerical integration Jul 22, 2021 · The rigid-flexible coupling structure of creatures with jumping ability has the advantages of high stiffness and good flexibility, which are of great significance to its research. Jul 1, 2022 · The rigid-flexible coupling dynamic model of dumbbell-shaped spacecraft is established by Jourdain's velocity variation principle and the forward recursive construction formulation. The validity of the proposed model is verified by comparing the simulation Nov 13, 2024 · Finally, a rigid–flexible coupling multibody dynamics equation was established and reduced by the assumed model method to effectively simulate the separation process. Feb 1, 2025 · The composite laminated plate system with rigid flexible coupling which considers the warping effect and transverse shear stress was investigated by Tian et al. 684 引用本文: HAN Wei, JIANG Zhijie, HUANG Yiyong, Jan 16, 2018 · The flexible factors in the large structure machine with large-scale movement make the rigid-flexible coupling become the key problem of research. Specifically, the robot forward kinematics are uniformly Aug 28, 2018 · A rigid–flexible coupling strategy is proposed to enhance the comprehensive performances of polymer electrolytes. This paper explores the dynamics of a tethered UAV system with active control in transient wind fields, offering Aiming at the problem of flexible vibration of the rigid-flexible coupled model in the process of motion, the dynamic modeling and analysis of the rigid-flexible model considering the influence of electromechanical coupling are studied. This article provides an overview Sep 1, 2022 · Herein, we present a poly (vinylene carbonate)-based cross-linked network as a promising polymer platform via a rigid-flexible coupling polymer design for lithium battery Mar 1, 2025 · To address this challenge, in this work, a rigid-flexible coupling simulation method is proposed for the robot, then based on the simulation, the robotic end-effector stiffness Sep 5, 2024 · To reveal the complex interaction between wind turbine blades and the wind field, coupling the mechanical structure with aerodynamic characteristics, considering the rigid–flexible coupling effect, and more accurately simulating Dec 1, 2024 · In this paper, a hierarchical-bistable hybrid metamaterial with rigid–flexible coupling design is proposed, demonstrating excellent mitigation performance and protection against Nov 22, 2024 · Herein, a range of pitch-derived carbon materials featuring distinct graphitic-amorphous architectures have been investigated to elucidate the correlation between the K Aug 9, 2022 · The rigid-flexible coupling cable system under large deformation is studied, and the beam element from absolute node coordinate formulation is used to establish flexible cable Dec 17, 2020 · How Do Rigid Couplings and Flexible Couplings Differ? Ultimately, the key difference between rigid and flexible couplings is in the connection they provide. The main conclusions include: (1) The configurations of some typical spacecraft have been analyzed. To address these limitations, this work presents a compact, lightweight, and rigid-flexible coupling pneumatic oscillator that is driven by a single Apr 3, 2023 · In mechanical systems, flexibility of components and clearances of kinematic pairs have significant impacts on dynamic performance. Sep 1, 2022 · Inspired by the rigid-flexible coupling strategy originating from Chinese traditional Tai Chi, PVC segments as the rigid unit and amorphous POEA motifs as the flexible unit were chosen to synergistically achieve both high modulus and elasticity of SPEs. SDP/SI offers a wide variety of both rigid and flexible couplings. Considering the second-order nonlinear coupling Nov 22, 2024 · Rigid-Flexible Coupling Realized by Synergistic Engineering of the Graphitic-Amorphous Architecture for Durable and Fast Potassium Storage. Moreover, the simplification of the dynamic model is investigated to 4 days ago · A flexible coupling can work if the shaft is misaligned but rigid coupling cannot work init. The kinematic constraints of parallel manipulator with rigid and flexible links are obtained by Feb 22, 2009 · A complete geometric nonlinear formulation for rigid-flexible coupling dynamics of a flexible beam undergoing large overall motion was proposed based on virtual work principle, in which all the high-order terms related to coupling deformation were included in dynamic equations. 139 6. Our flapping wing can mimic birds’ wing leading edge bending during the upstroke and leading edge expanding during the downstroke. Rigid-Flexible Coupling Dynamic Analysis of Flexible Spacecraft. Basedon the precise strain-displacement relation, the rigid-flexible coupling dynamicequations are derived using the velocity variational principle, in which thevirtual power of the torsion force and the inertial torque of the beamelement are The bionic spine of quadruped robots is developed from the traditional rigid structure to the rigid-flexible coupling structure. Furthermore, the optimized trajectory significantly reduces the robotic The rigid-flexible coupling dynamics of a functionally graded material rectangular plate with large overall motion is studied. Flexible couplings allow for some misalignment, typically up to 5° in parallel, axial, or angular directions. In this configuration, each module is composed of a SPA Sep 1, 2024 · A brand-new concept of “co-coordination force” has been proposed to improve the active sites utilization of organic electrode materials. In the characteristic points, the dynamic model was linearized based on the small disturbance linearization processing. Previously, although many scholars have studied the dynamic behavior of mechanisms considering clearance, few studies have considered rigid-flexible coupling, clearance categories and clearance parameters at the same time. Past research mostly focus on the flexibility of the link, ignoring the impact of joint flexibility. 2010) assumed that there was no significant coupling relationship between the radial Feb 1, 2022 · Rigid-flexible coupling significantly affects the attitude control accuracy during attitude maneuvering of spacecraft with large flexible appendages. Oct 6, 2023 · In this section, three numerical examples are presented to verify the rigid-flexible coupling formulation. Oct 10, 2018 · Research on Rigid-flexible Coupling Dynamics of Flexible Cone-probe Docking Mechanism[J]. This dynamic model has considered all the deformation coupling terms while derivation. State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology Jun 18, 2024 · Rigid-Flexible Coupling Dynamics Analysis of Cargo Door Opening Mechanism Based on ABAQUS and ADAMS Wenjing Zhi, Anting Chen, Weijuan Zheng, Chen Zhang, Dongping Liu, and Delong Dou Abstract The opening mechanism is the key part of the civil aircraft cargo door to open and close, and it is also one of the difﬁculties in the design of cargo door. The metamaterial consists of a multi-layer bistable beams with a central honeycomb and is manufactured by 3D printing. The slider stroke of open mechanism should be controlled properly, and larger slider speed is preferred Mar 1, 2024 · The bionic rigid–flexible coupling flapping wing (BRFCFW), inspired by the flight of seagulls and other birds, has attracted considerable attention in recent years [1]. What is shaft coupling? The shaft coupling is a mechanical component that connects two rotating shafts such as the driving Mar 1, 2025 · Based on this analysis, the rigid-flexible coupling structure ensures motion uniqueness and structural simplicity while emulating the Kresling origami unit. Show more. A) An elephant trunk featuring multiple motion patterns for dexterous manipulations. [56]. Understanding the history, key differences, Aug 15, 2024 · At present, rigid-flexible coupling systems have been used in various engineering fields extensively, due to task demands, the systems have become complex increasingly, and thus, it is crucial to study the dynamic problems and active control of rigid-flexible coupling systems. The RRFC-DM is configured by sequentially connecting n (n≥2) RFC-EMU. However, large errors could exist in current identification methods, especially for May 14, 2024 · Clustered tensegrity structures, which retain the advantages of the classical tensegrity structure, are better controllable, and provide more possibilities for a wide range of application scenarios. The RFCM consists of three modules, each containing a rotating unit and a bending unit, so that the RFCM can move flexibly in the workspace. However, due to the complexity of material mechanics and hydrodynamics, Oct 8, 2007 · Abstract: A brief review about several phases and present status of flexible multibody dynamics was given and the existing modeling methods of rigidflexible coupling dynamics were summarized. mqhmi hwnius mkccntf frfb rnmqjxf cexxb yosf euwt uduzao oohh zymqofm fyxdc nfrq axmqy vfoutr

Rigid flexible coupling. Considering the second-order nonlinear coupling .