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Journal articles on the topic 'Rigid flexible multibody- Dynamics'

Author: Grafiati

Published: 6 September 2023

Last updated: 7 September 2023

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1

Chen, Gang, Weigong Zhang, and Bing Yu. "Multibody dynamics modeling of electromagnetic direct-drive vehicle robot driver." International Journal of Advanced Robotic Systems 14, no. 5 (2017): 172988141773189. http://dx.doi.org/10.1177/1729881417731896.

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Collaborative dynamics modeling of flexible multibody and rigid multibody for an electromagnetic direct-drive vehicle robot driver is proposed in the article. First, spatial dynamic equations of the direct-drive vehicle robot driver are obtained based on multibody system dynamics. Then, the shift manipulator dynamics model and the mechanical leg dynamics model are established on the basis of the multibody dynamics equations. After establishing a rigid multibody dynamics model and conducting finite element mesh and finite element discrete processing, a flexible multibody dynamics modeling of th

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2

Duan, Yue Chen, Xia Li, Wei Wei Zhang, Guo Ning Liu, and Ting Ting Wang. "Impact Dynamics of Flexible Multibody System Based on Continuous Contact Force Method." Applied Mechanics and Materials 744-746 (March 2015): 1628–34. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1628.

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The impact dynamics of spatial multi-link flexible multibody system is studied based on the continuous contact force method (CCFM). According to the rigid-flexible coupling dynamic theory of flexible multibody system, the rigid-flexible coupling continuous dynamic equations of the system are established by using the recursive Lagrange method. The impact dynamic equations of the system are stylized derived on the use of CCFM basing on the nonlinear spring-damper model. The contact separation criterion is given to achieve the conversion and calculation of the dynamic model for the system at diff

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3

Wang, Xiaoyu, Haofeng Wang, Jingchao Zhao, Chunyang Xu, Zhong Luo, and Qingkai Han. "Rigid-Flexible Coupling Dynamics Modeling of Spatial Crank-Slider Mechanism Based on Absolute Node Coordinate Formulation." Mathematics 10, no. 6 (2022): 881. http://dx.doi.org/10.3390/math10060881.

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In order to study the influence of compliance parts on spatial multibody systems, a rigid-flexible coupling dynamic equation of a spatial crank-slider mechanism is established based on the finite element method. Specifically, absolute node coordinate formulation (ANCF) is used to formulate a three-dimensional, two-node flexible cable element. 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. Comparison of the kinematics and dynamics response between rigi

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4

Liu, Zhuyong, Jiazhen Hong, Jinyang Liu, and Guanghao Xu. "58907 RIGID-FLEXIBLE COUPLING EFFECTS OF THE FLEXIBLE PLATE UNDERGOING LARGE OVERALL MOTION(Flexible Multibody Dynamics)." Proceedings of the Asian Conference on Multibody Dynamics 2010.5 (2010): _58907–1_—_58907–6_. http://dx.doi.org/10.1299/jsmeacmd.2010.5._58907-1_.

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5

Zhu, C. X., Yong Xian Liu, Guang Qi Cai, and L. D. Zhu. "Dynamics Simulation Analysis of Flexible Multibody of Parallel Robot." Applied Mechanics and Materials 10-12 (December 2007): 647–51. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.647.

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Take a kind of 3-TPT parallel robot as an example, the model of flexible multibody of parallel machine tool is built by using multibody dynamics simulation software ADAMS and finite element analysis software ANSYS. And dynamics equation of flexible body in spatial is also set up, after that the dynamics simulation is carried out. Then the simulation results of rigid bodies are compared with flexible ones, and the results show that the forces applied on flexible bodies appear high nonlinear, so the simulation results of flexible multibody system are more authentic, nicety and can reflect actual

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6

Zakhariev, Evtim. "Nonlinear Dynamics of Rigid and Flexible Multibody Systems." Mechanics of Structures and Machines 28, no. 1 (2000): 105–36. http://dx.doi.org/10.1081/sme-100100614.

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7

Yu, Hua-Nan, Jing-Shan Zhao, and Fu-Lei Chu. "Dynamic modeling of flexible multibody system using a meshing method." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 4 (2013): 611–31. http://dx.doi.org/10.1177/0954406213489444.

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Multi-rigid-body system dynamics can be used to investigate the dynamics of a mechanical system of rigid bodies while the finite element method is often utilized to model the quasi-static elastic deformations of an elastic structure. However, neither of these two methods can resolve the real dynamics of a mechanical system when both rigid displacements and elastic deformations coexist. Therefore, this article proposes a meshing method to simulate the mechanical system with uniform mass point movements. To split the specified solid structure into a set of regularly distributed dynamic units, on

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Wang, Yi Ping, Wen Lei Sun, and Qun Zhao. "Research on Dynamic Characteristics of 750KW Wind Turbine Flexible Blades." Applied Mechanics and Materials 34-35 (October 2010): 1757–60. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1757.

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It is necessary and fitting to use flexible multibody dynamics method to study the wind turbine blades. Because the characteristics of the blades will directly affect the whole wind turbine’s, and the results by using flexible multibody method are to agree with reality. Considering the anisotropic composite blades, it established the flexible blades model and rigid-flexible wind rotor model of the 750KW wind turbine by the software of ANSYS and ADAMS. Then fit the loads which are computed from BLADE to the wind rotor, analyze the dynamic characteristics of the rotor. It gets the dynamic featur

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9

Langlois, R. G., and R. J. Anderson. "A TUTORIAL PRESENTATION OF ALTERNATIVE SOLUTIONS TO THE FLEXIBLE BEAM ON RIGID CART PROBLEM." Transactions of the Canadian Society for Mechanical Engineering 29, no. 3 (2005): 357–73. http://dx.doi.org/10.1139/tcsme-2005-0022.

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A classical planar problem in forward flexible multibody dynamics is thoroughly investigated. The system consists of a damped flexible beam cantilevered to a rigid translating cart. The problem is solved using three distinctly different conventional approaches presented in roughly the chronological order in which they have been applied to flexible dynamic systems. First, a modal superposition formulation based on Bernoulli-Euler beam theory is developed. Second, an alternative solution is developed drawing exclusively on methods for rigid body dynamics combined with a knowledge of the theoreti

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10

Qin, Wen Jie, D. W. Jia, and Q. Y. Liu. "Multibody System Dynamics Simulation of Loads in Main Bearings of Crankshafts." Materials Science Forum 628-629 (August 2009): 55–60. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.55.

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In this paper, as for the calculation of loads in main bearings in a crankshaft system, multibody system dynamics is used to simulate the dynamic characteristics of the system composed of flexible and rigid bodies, coupled with hydrodynamic lubrication analysis further. The multibody system model with flexible crankshaft of one V8 diesel engine is built in ADAMS software, in which the bearings are modeled as rigid constrained bearings and hydrodynamic bearings respectively. The resulted loads in main bearings using different models are compared. The results show that the deformation of cranksh

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11

Cyril, X., J. Angeles, and A. Misra. "DYNAMICS OF FLEXIBLE MULTIBODY MECHANICAL SYSTEMS." Transactions of the Canadian Society for Mechanical Engineering 15, no. 3 (1991): 235–56. http://dx.doi.org/10.1139/tcsme-1991-0014.

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In this paper the formulation and simulation of the dynamical equations of multibody mechanical systems comprising of both rigid and flexible-links are accomplished in two steps: in the first step, each link is considered as an unconstrained body and hence, its Euler-Lagrange (EL) equations are derived disregarding the kinematic couplings; in the second step, the individual-link equations, along with the associated constraint forces, are assembled to obtain the constrained dynamical equations of the multibody system. These constraint forces are then efficiently eliminated by simple matrix mult

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12

Yen, Chiaming, and Glenn Y. Masada. "Dynamic Analysis of Flexible Bodies Using Extended Bond Graphs." Journal of Dynamic Systems, Measurement, and Control 116, no. 1 (1994): 66–72. http://dx.doi.org/10.1115/1.2900682.

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An Extended Bond Graph (EBG) formulation is described for analyzing the dynamics of a flexible multibody system. This work extends the EBG method, which was originally developed for systems with small spatial motion, to rigid and flexible multibody systems exhibiting large overall motions. The development uses modular models for the elements so that complex system models can be derived by coupling these modules. The EBG formulation for moving reference frames is used to derive models of one-link and two-link flexible manipulator systems. This approach has several advantages over the Lagrangian

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Xue, Zhi-Peng, Ming Li, Yan-Hui Li, and Hong-Guang Jia. "A Simplified Flexible Multibody Dynamics for a Main Landing Gear with Flexible Leaf Spring." Shock and Vibration 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/595964.

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The dynamics of multibody systems with deformable components has been a subject of interest in many different fields such as machine design and aerospace. Traditional rigid-flexible systems often take a lot of computer resources to get accurate results. Accuracy and efficiency of computation have been the focus of this research in satisfying the coupling of rigid body and flex body. The method is based on modal analysis and linear theory of elastodynamics: reduced modal datum was used to describe the elastic deformation which was a linear approximate of the flexible part. Then rigid-flexible m

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14

Tian, Qiang, Yanlei Sun, Cheng Liu, Haiyan Hu, and Paulo Flores. "ElastoHydroDynamic lubricated cylindrical joints for rigid-flexible multibody dynamics." Computers & Structures 114-115 (January 2013): 106–20. http://dx.doi.org/10.1016/j.compstruc.2012.10.019.

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15

Luo, Qing Guo, Xu Dong Wang, Zheng Bo Gong, and Feng Wang. "Dynamics Simulation of the Crank and Connecting Rod Mechanism of Diesel Engine." Advanced Materials Research 354-355 (October 2011): 438–41. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.438.

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Based on the virtual prototyping technology and flexible multibody system dynamic theory, the author founded the rigid-flexible coupling multibody dynamic analysis model of the crank and connecting rod mechanism of diesel engine, combining the means of 3D solid modeling, finite element analysis and multi-body dynamic simulation. Through the simulation, the dynamic loads in the working cycle of the mechanism are obtained, which provides reference for dynamic stress and fatigue analysis of the mechanism.

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16

Zhang, Lina, Xiaoting Rui, Jianshu Zhang, Guoping Wang, Junjie Gu, and Xizhe Zhang. "A framework for establishing constraint Jacobian matrices of planar rigid-flexible-multibody systems." AIMS Mathematics 8, no. 9 (2023): 21501–30. http://dx.doi.org/10.3934/math.20231096.

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<abstract> <p>Constraint violation correction is an important research topic in solving multibody system dynamics. For a multibody system dynamics method which derives acceleration equations in a recursive manner and avoids overall dynamics equations, a fast and accurate solution to the violation problem is paramount. The direct correction method is favored due to its simplicity, high accuracy and low computational cost. This method directly supplements the constraint equations and performs corrections, making it an effective solution for addressing violation problems. However, cal

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17

Zahariev, E. V. "Earthquake dynamic response of large flexible multibody systems." Mechanical Sciences 4, no. 1 (2013): 131–37. http://dx.doi.org/10.5194/ms-4-131-2013.

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Abstract. In the paper dynamics of large flexible structures imposed on earthquakes and high amplitude vibrations is regarded. Precise dynamic equations of flexible systems are the basis for reliable motion simulation and analysis of loading of the design scheme elements. Generalized Newton–Euler dynamic equations for rigid and flexible bodies are applied. The basement compulsory motion realized because of earthquake or wave propagation is presented in the dynamic equations as reonomic constraints. The dynamic equations, algebraic equations and reonomic constraints compile a system of differen

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18

Zhao, Da Xing, Yong Yang, Wan Xu, Guo Long Ding, and Ling Peng. "Rigid-Flexible Coupling-Based CNC Machine Tool Feed Drive System Co-Simulation." Advanced Materials Research 694-697 (May 2013): 115–19. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.115.

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High-speed high-precision CNC processing technology plays a very important position in the CNC machining industry,machine disturbance,however,an important factor affecting the machining accuracy,the ball screw feed drive as an important part of the machine directly affects the operating characteristics of the machine.Ball screw drive system,Solidworks,Ansys,Adams the establishment of machine tool,rigid-flexible couping the multibody dynamics model,the dynamic characteristic curve of the machine.Compared with the rigid body model simulation results verify the feasibility of rigid-flexible coupl

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19

Zhang, Xing, Qi Wei He, and Xiang Yu. "Modeling and Dynamic Analysis for Rigid-Flexible Coupling Nonlinear Floating Raft Vibration Isolation System." Applied Mechanics and Materials 34-35 (October 2010): 1994–98. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1994.

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To analyze the influence of the nonlinearity of the floating raft vibration isolation system, the theory of flexible multibody dynamics was used here to model the rigid-flexible coupling nonlinear floating raft vibration isolation system. The dynamical characteristics of the model were studied with ADAMS software and some typical nonlinear phenomena, such as subharmonics, superharmonics and attractor coexistence, were observed through time domain analysis.

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20

Zhang, Xiao Ming, Yu Qing Wang, and Jie Fang. "Dynamic Simulation of Crank-Connecting Rod-Piston Mechanism of Internal Combustion Engine Based on Virtual Prototype Technology." Applied Mechanics and Materials 143-144 (December 2011): 433–36. http://dx.doi.org/10.4028/www.scientific.net/amm.143-144.433.

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A virtual prototype model of S195 diesel engine was established by using CAD, finite element analysis based on virtual prototype technology and dynamics theory of flexible multibody systems to study the kinetic discipline of the crank-rod mechanism,vibration of cylinder block caused by inertia force and the balance problem of inertia force.The rigid body and flexible body simulation were compared.The interaction force between components could be determined by flexible multibody dynamics analysis of the crankshaft system under the real working condition. The simulation results are accordant wit

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21

Boutaghou, Z. E., Arthur G. Erdman, and Henryk K. Stolarski. "Dynamics of Flexible Beams and Plates in Large Overall Motions." Journal of Applied Mechanics 59, no. 4 (1992): 991–99. http://dx.doi.org/10.1115/1.2894071.

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The dynamic response of flexible beams, plates, and solids undergoing arbitrary spatial motions are systematically derived via a proposed approach. This formulation is capable of incorporating arbitrary representation of the kinematics of deformation, phenomenon of dynamic stiffening, and complete nonlinear interaction between elastic and rigid-body dynamics encountered in constrained multibody systems. It is shown that the present theory captures the phenomenon of dynamic stiffening due to the transfer of the axial and membrane forces to the bending equations of beams and plates, respectively

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22

Skrinjar, Luka, Janko Slavič, and Miha Boltežar. "Absolute Nodal Coordinate Formulation in a Pre-Stressed Large-Displacements Dynamical System." Strojniški vestnik - Journal of Mechanical Engineering 63, no. 7-8 (2017): 417. http://dx.doi.org/10.5545/sv-jme.2017.4561.

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The design process for dynamical models has to consider all the properties of a mechanical system that have an effect on its dynamical response. In multi-body dynamics, flexible bodies are frequently modeled as rigid, resulting in non-valid modeling of the pre-stress effect. In this research a focus on the pre-stress effect for a flexible body assembled in a rigid-flexible multibody system is presented. In a rigid-flexible assembly a flexible body is modeled with an absolute nodal coordinate formulation (ANCF) of finite elements. The geometrical properties of the flexible body are evaluated ba

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23

Vukasovic, N., J. T. Celigu¨eta, J. Garci´a de Jalo´n, and E. Bayo. "Flexible Multibody Dynamics Based on a Fully Cartesian System of Support Coordinates." Journal of Mechanical Design 115, no. 2 (1993): 294–99. http://dx.doi.org/10.1115/1.2919191.

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In this paper we present an extension to flexible multibody systems of a system of fully cartesian coordinates previously used in rigid multibody dynamics. This method is fully compatible with the previous one, keeping most of its advantages in kinematics and dynamics. The deformation in each deformable body is expressed as a linear combination of Ritz vectors with respect to a local frame whose motion is defined by a series of points and vectors that move according to the rigid body motion. Joint constraint equations are formulated through the points and vectors that define each link. These a

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Liu, Xiang, Jing-Shan Zhao, and Zhi-Jing Feng. "Compliant dynamics of a rectilinear rear-independent system." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 5 (2016): 785–806. http://dx.doi.org/10.1177/0954406216631369.

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The rectilinear rear-independent suspension investigated in this paper could remain the wheel alignment parameters invariable in theory. However, its dynamics is much more complex than that of the existing suspensions because of its redundant constraints in structure. Considering the elasticity of the rectilinear rear-independent suspension, a rigid-flexible half-car dynamic model is established for the first time based on the discrete time transfer matrix method. At the same time, a rigid half-car dynamic model is established as a comparison. The natural frequency characteristics and dynamic

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Lidström, P. "Instantaneous impulses in multibody dynamics." Mathematics and Mechanics of Solids 22, no. 4 (2015): 581–635. http://dx.doi.org/10.1177/1081286515598825.

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This paper considers instantaneous impulses in multibody dynamics. Instantaneous impulses may act on the multibody from its exterior or they may appear in its interior as a consequence of two of its parts interacting by an impact imposed by a unilateral constraint. The theory is based on the Euler laws of instantaneous impulses, which may be seen as a complement to the Euler laws for regular motions. Based on these laws, and specific continuum properties of the quantities involved, local balance laws for momentum and moment of momentum, involving instantaneous impulses and introducing the Cauc

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26

Yoon, Ji Won, Kab Jin Jun, and Tae Won Park. "Dynamic Analysis and Fatigue Life Prediction of a Very Flexible Component in Multibody System." Key Engineering Materials 321-323 (October 2006): 1597–600. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1597.

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Recently, the finite element absolute nodal coordinate formulation(ANCF) was developed for large deformation analysis of flexible bodies in multi-body dynamics. This formulation is based on finite element procedures and the general continuum mechanics theory to represent elastic forces. In this paper, a computational method, which predicts the dynamic and structural properties of a very flexible beam in a multibody system, is presented based on Euler-Bernoulli beam theory and ANCF. In order to consider the dynamic interaction between a continuous large deformable beam and a rigid multibody sys

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Shabana, A. A. "Dynamics of Flexible Bodies Using Generalized Newton-Euler Equations." Journal of Dynamic Systems, Measurement, and Control 112, no. 3 (1990): 496–503. http://dx.doi.org/10.1115/1.2896170.

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A force acting on a rigid body produces a linear acceleration for the whole body together with an angular acceleration about its center of mass. This result is in fact Newton-Euler equations which are used as basis for developing many recursive formulations for open loop multibody systems consisting of interconnected rigid bodies. In this paper, generalized Newton-Euler equations are developed for deformable bodies that undergo large translational and rotational displacements. The configuration of the deformable body is identified using coupled sets of reference and elastic variables. The nonl

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Palomba, Ilaria, and Renato Vidoni. "Flexible-Link Multibody System Eigenvalue Analysis Parameterized with Respect to Rigid-Body Motion." Applied Sciences 9, no. 23 (2019): 5156. http://dx.doi.org/10.3390/app9235156.

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The dynamics of flexible multibody systems (FMBSs) is governed by ordinary differential equations or differential-algebraic equations, depending on the modeling approach chosen. In both the cases, the resulting models are highly nonlinear. Thus, they are not directly suitable for the application of the modal analysis and the development of modal models, which are very useful for several advanced engineering techniques (e.g., motion planning, control, and stability analysis of flexible multibody systems). To define and solve an eigenvalue problem for FMBSs, the system dynamics has to be lineari

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Rückwald, Tobias, Alexander Held, and Robert Seifried. "Flexible multibody impact simulations based on the isogeometric analysis approach." Multibody System Dynamics 54, no. 1 (2021): 75–95. http://dx.doi.org/10.1007/s11044-021-09804-x.

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AbstractUsually detailed impact simulations are based on isoparametric finite element models. For the inclusion in multibody dynamics simulation, e.g., in the framework of the floating frame of reference, a previous model reduction is necessary. A precise representation of the geometry is essential for modeling the dynamics of the impact. However, isoparametric finite elements involve the discretization of the geometry. This work tests isogeometric analysis (IGA) models as an alternative approach in the context of impact simulations in flexible multibody systems. Therefore, the adaption of the

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30

Zhang, Jian Hua, and Shou Shan Jiang. "Rigid-Flexible Coupling Model and Dynamic Analysis of Rocket Sled." Advanced Materials Research 346 (September 2011): 447–54. http://dx.doi.org/10.4028/www.scientific.net/amr.346.447.

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The Dynamics Analysis & Simulation of the Rocket Sled were done based on Multibody System Dynamics and Finite Element Analysis Theory. The most difficult work in the analysis was establishing the boundary conditions of the rocket sled. The paper made this kind of attempt. Then the relevant post processing figures and data were obtained, thereby providing the designer and manufacturer with detailed and reliable data. The conclusion is the simulation method is more effective than those before and the boundary conditions is correct and acceptable.

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Köthe, Alexander, and Robert Luckner. "Applying Eigenstructure Assignment to Inner-Loop Flight Control Laws for a Multibody Aircraft." CEAS Aeronautical Journal 13, no. 1 (2021): 33–43. http://dx.doi.org/10.1007/s13272-021-00549-z.

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AbstractUnmanned aircraft used as high-altitude platform system has been studied in research and industry as alternative technologies to satellites. Regarding actual operation and flight performance of such systems, multibody aircraft seems to be a promising aircraft configuration. In terms of flight dynamics, this aircraft strongly differs from classical rigid-body and flexible aircraft, because a strong interference between flight mechanic and formation modes occurs. For unmanned operation in the stratosphere, flight control laws are required. While control theory generally provides a number

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Wang, Zhe, Qiang Tian, and Haiyan Hu. "Dynamics of spatial rigid–flexible multibody systems with uncertain interval parameters." Nonlinear Dynamics 84, no. 2 (2015): 527–48. http://dx.doi.org/10.1007/s11071-015-2504-4.

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Cardona, A., M. Geradin, and D. B. Doan. "Rigid and flexible joint modelling in multibody dynamics using finite elements." Computer Methods in Applied Mechanics and Engineering 89, no. 1-3 (1991): 395–418. http://dx.doi.org/10.1016/0045-7825(91)90050-g.

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Zhang, Z. W., Y. X. Wu, J. G. Liu, W. Ren, and M. H. Cao. "Research on the rigid-flexible multibody dynamics of concrete placing boom." Automation in Construction 67 (July 2016): 22–30. http://dx.doi.org/10.1016/j.autcon.2016.03.009.

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Castellani, Michele, Jonathan E. Cooper, and Yves Lemmens. "Flight Loads Prediction of High Aspect Ratio Wing Aircraft Using Multibody Dynamics." International Journal of Aerospace Engineering 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/4805817.

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A framework based on multibody dynamics has been developed for the static and dynamic aeroelastic analyses of flexible high aspect ratio wing aircraft subject to structural geometric nonlinearities. Multibody dynamics allows kinematic nonlinearities and nonlinear relationships in the forces definition and is an efficient and promising methodology to model high aspect ratio wings, which are known to be prone to structural nonlinear effects because of the high deflections in flight. The multibody dynamics framework developed employs quasi-steady aerodynamics strip theory and discretizes the wing

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Jian, Shen, Han Feng, Chen Fang, Zhou Qiao, and Pavel M. Trivailo. "Dynamics and modeling of rocket towed net system." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 232, no. 1 (2016): 185–97. http://dx.doi.org/10.1177/0954410016673090.

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In order to study the complex dynamical behavior of the rocket towed net system, a three-dimensional model consisting of a rigid rocket model and a lumped mass net model is built based on the aerodynamics theory. The rocket towed net system model is solved by the fourth-order Runge–Kutta method in simulation. Simulation and experimental results show that the accuracies of rocket towed net system expanding distance were about 90% of the system length. With the comparison of simulation, a rigid multibody model and experimental results in rocket mass center trajectory, velocity, and pitch angle,

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Choi, JaeWon, DuHyun Gong, Junhee Lee, Chongam Kim, and SangJoon Shin. "Simulation of the flapping wing aerial vehicle using flexible multibody dynamics." International Journal of Micro Air Vehicles 13 (January 2021): 175682932110433. http://dx.doi.org/10.1177/17568293211043305.

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An insect-type flapping wing micro aerial vehicle offers high aerodynamic efficiency and maneuverability in confined spaces. The complicated aerodynamic/structural behavior of flapping wing micro aerial vehicle, however, causes difficulties regarding the dynamic control and parametric design. This paper develops a moderately accurate numerical framework taking into account the passive motion of the main wings. Finite-element-based multibody dynamics and two-dimensional unsteady aerodynamics are combined to simulate the hover of a flapping wing micro aerial vehicle. In addition, flexible and ri

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Samanta, B. "Dynamics of Flexible Multibody Systems Using Bond Graphs and Lagrange Multipliers." Journal of Mechanical Design 112, no. 1 (1990): 30–35. http://dx.doi.org/10.1115/1.2912575.

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A procedure is presented to study the dynamics of interconnected flexible systems using bond graphs. The concept of Lagrange multipliers, which are commonly used in analysis of constrained systems, is introduced in the procedure. The overall motions of each of the component bodies are described in terms of large rigid body motions and small elastic vibrations. Bond graphs are used to represent both rigid body and flexible dynamics of each body in a unified manner. Bond graphs of such sub-systems are coupled to one another satisfying the kinematic constraints at the interfaces to get the overal

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RASTI, A., and S. A. FAZELZADEH. "MULTIBODY DYNAMIC MODELING AND FLUTTER ANALYSIS OF A FLEXIBLE SLENDER VEHICLE." International Journal of Structural Stability and Dynamics 12, no. 06 (2012): 1250049. http://dx.doi.org/10.1142/s0219455412500496.

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In this paper, multibody dynamic modeling and flutter analysis of a flexible slender vehicle are investigated. The method is a comprehensive procedure based on the hybrid equations of motion in terms of quasi-coordinates. The equations consist of ordinary differential equations for the rigid body motions of the vehicle and partial differential equations for the elastic deformations of the flexible components of the vehicle. These equations are naturally nonlinear, but to avoid high nonlinearity of equations the elastic displacements are assumed to be small so that the equations of motion can b

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Wan, Lirong, Shuai Zhang, Zhaosheng Meng, and Yunyue Xie. "Analysis of the Protection Performance of Face Guard for Large Mining Height Hydraulic Support." Shock and Vibration 2021 (March 12, 2021): 1–16. http://dx.doi.org/10.1155/2021/6631017.

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With the increase of mining height, the problem of coal wall spalling in the working face gradually worsens. Hydraulic support and its face guard structure are the key pieces of equipment to restrain the coal wall spalling. However, at present, the hydraulic jack is mostly considered as rigid in the analysis of protection mechanism. This simplification cannot effectively reflect the true bearing state of the face guard. In order to improve the accuracy of analysis, this study considers the face guard jack as a flexible spring and establishes a rigid-flexible coupling analysis model of the face

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41

Lidström, Per. "Frames of reference in multibody dynamics." Mathematics and Mechanics of Solids 24, no. 1 (2017): 98–151. http://dx.doi.org/10.1177/1081286517731485.

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In this paper, a discussion is undertaken concerning the use of so-called floating frames of reference in the calculation of the kinetic and elastic energies of parts in a multibody system. The use of floating frames may simplify the calculation of the elastic energy, although sometimes at the expense of more elaborate expressions for the kinetic energy. These expressions may involve terms that couple the motion of the floating frame and the relative motion of the part. The choice of a floating frame may be arbitrary but in order to obtain as simple expressions as possible some care must be ta

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Nakanishi, Toshikazu, Xuegang Yin, and A. A. Shabana. "Dynamics of Multibody Tracked Vehicles Using Experimentally Identified Modal Parameters." Journal of Dynamic Systems, Measurement, and Control 118, no. 3 (1996): 499–507. http://dx.doi.org/10.1115/1.2801173.

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The mode shapes, frequencies, and modal mass and stiffness coefficients of multibody systems such as tracked vehicles can be determined using experimental identification techniques. In multibody simulations, however, knowledge of the modal parameters of the individual components is required, and consequently, a procedure for extracting the component modes from the mode shapes of the assembled system must be used if experimental modal analysis techniques are to be used with general purpose multibody computer codes. In this investigation, modal parameters (modal mass, modal stiffness, modal damp

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Tian, Qiang, Jie Lou, and Aki Mikkola. "A new elastohydrodynamic lubricated spherical joint model for rigid-flexible multibody dynamics." Mechanism and Machine Theory 107 (January 2017): 210–28. http://dx.doi.org/10.1016/j.mechmachtheory.2016.09.006.

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Shao, Haoyuan, Zi Kan, Yifeng Wang, Daochun Li, Zhuoer Yao, and Jinwu Xiang. "Dynamic Analysis and Numerical Simulation of Arresting Hook Engaging Cable in Carried-Based UAV Landing Process." Drones 7, no. 8 (2023): 530. http://dx.doi.org/10.3390/drones7080530.

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Carrier-based unmanned aerial vehicles (UAVs) require precise evaluation methods for their landing and arresting safety due to their high autonomy and demanding reliability requirements. In this paper, an efficient and accurate simulation method is presented for studying the arresting hook engaging arresting cable process. The finite element method and multibody dynamics (FEM-MBD) approach is employed. By establishing a rigid–flexible coupling model encompassing the UAV and arresting gear system, the simulation model for the engagement process is obtained. The model incorporates multiple coord

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Campanelli, Marcello, Marcello Berzeri, and Ahmed A. Shabana. "Performance of the Incremental and Non-Incremental Finite Element Formulations in Flexible Multibody Problems." Journal of Mechanical Design 122, no. 4 (1999): 498–507. http://dx.doi.org/10.1115/1.1289636.

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Many flexible multibody applications are characterized by high inertia forces and motion discontinuities. Because of these characteristics, problems can be encountered when large displacement finite element formulations are used in the simulation of flexible multibody systems. In this investigation, the performance of two different large displacement finite element formulations in the analysis of flexible multibody systems is investigated. These are the incremental corotational procedure proposed in an earlier article (Rankin, C. C., and Brogan, F. A., 1986, ASME J. Pressure Vessel Technol., 1

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Ma, D., and H. M. Lankarani. "A Multibody/Finite Element Analysis Approach for Modeling of Crash Dynamic Responses." Journal of Mechanical Design 119, no. 3 (1997): 382–87. http://dx.doi.org/10.1115/1.2826359.

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Computer models of the human body are robust tools for gaining insight into the gross motion of ground vehicle or aircraft occupants and evaluating the loads and, deformations of their critical parts. The knowledge of occupant responses will help in the determination of the type and probable causes of injuries that may he sustained during a crash. An important aspect in crash analysis is how the large motion of the relatively rigid segments of an occupant, such as the limbs, and the small deformations of flexible segments, such as the spine column, are interrelated. To this end, a general meth

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Zhao, Bo, Zhi-Nan Zhang, and Xu-Dong Dai. "Modeling and prediction of wear at revolute clearance joints in flexible multibody systems." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 2 (2013): 317–29. http://dx.doi.org/10.1177/0954406213486384.

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This article proposes a numerical approach for the modeling and prediction of wear at revolute clearance joints in flexible multibody systems by integrating the procedures of wear prediction with multibody dynamics. In the approach, the flexible component is modeled based on the absolute nodal coordinate formulation. The contact force in the clearance joint is applied using the continuous contact force model proposed by Lankanrani and Nikravesh and the friction effect is considered using the LuGre friction model. The simulation of wear is performed by an iterative wear prediction procedure bas

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Juhasz, Ondrej, Roberto Celi, and Mark B. Tischler. "Flight Dynamics Simulation Modeling of a Large Flexible Tiltrotor Aircraft." Journal of the American Helicopter Society 67, no. 2 (2022): 1–16. http://dx.doi.org/10.4050/jahs.67.022003.

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A high-order tiltrotor mathematical model is developed and validated against flight-test data for the XV-15 and simulations of a large civil tiltrotor (LCTR) concept. Rigid body and inflow states, as well as flexible wing and blade states are used in the analysis. Wing flexibility is important when modeling large aircraft where structural modes effect the frequency range of interest for flight control, generally 1–20 rad/s. Details of the formulation of the mathematical model are given, including derivation of structural, aerodynamic, and inertial loads. A novel "quasi-multibody" approach, bas

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Guo, Yongbo, and Fansheng Wang. "Multi Body Dynamic Equations of Belt Conveyor and the Reasonable Starting Mode." Symmetry 12, no. 9 (2020): 1489. http://dx.doi.org/10.3390/sym12091489.

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Based on the rigid finite element method and multibody dynamics, a discrete model of a flexible conveyor belt considering the material viscoelasticity is established. RFE (rigid finite element) and SDE (spring damping element) are used to describe the rigidity and flexibility of a conveyor belt. The dynamic differential equations of the RFE are derived by using Lagrange’s equation of the second kind of the non-conservative system. The generalized elastic potential capacity and generalized dissipation force of the SDE are considered. The forward recursive formula is used to construct the convey

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Yu, Zheng Ning, Wen Long Li, and Yu Shan Zhao. "A New Dynamics Model of Structure-Changing Multibody Systems with Flexible Appendages." Advanced Materials Research 479-481 (February 2012): 715–19. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.715.

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According to engineering requirements, structure of multibody systems would change and lead to obvious modifications in dynamics model obtained by traditional methods. In this paper, an existing method for rigid body systems with changing structures is extended to systems with flexible appendages, which is more common in engineering. Application of the new generalized approach to a typical 4-body system is actualized. Numerical simulation is carried out and results are the same as theoretical analysis, which indicate the availability and applicability of the new approach.

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