Results 151 to 160 of about 1,062 (186)
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Dynamics of general flexible multibody systems
International Journal for Numerical Methods in Engineering, 1990AbstractA general treatment is presented for modelling the dynamics of a flexible multibody system, using a lumped mass finite element approach. The system topology considered here is defined as an arbitrary combination of both rigid and flexible bodies, connected together by joints that permit translation and compliance, in a general tree ...
Han, Ray P. S., Zhao, Zhi Cheng
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Impact and Bifurcation of Flexible Multibody Systems
Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2003In the paper, the process of loss of stability of multibody systems and structures is analyzed. A novel approach is presented and applied as for the statically loaded spatial systems so for analysis of dynamic response of systems imposed on impact. The analysis is based on solution of the dynamic equations and eigenvalue problem of systems, and of ...
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Symbolic computations in flexible multibody systems
Nonlinear Dynamics, 1996The need for computer aided engineering in the analysis of machines and mechanisms led to a wide variety of general purpose programs for the dynamical analysis of multibody systems. The use of more lightweight structures and an increasing demand of high-precision mechanisms, such as robots, led to the incorporation of flexible bodies in this ...
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Forward Dynamics of Flexible Multibody Systems
1994So far, several approaches to the solution of the kinematics and dynamics of multibody systems have been presented. It has been assumed in these approaches that all the bodies satisfy the rigid body condition. A body is assumed to be rigid if any pair of its material points do not present relative displacements.
Javier García de Jalón, Eduardo Bayo
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Flexible Multibody Model of Desmodromic Timing System#
Mechanics Based Design of Structures and Machines, 2009Abstract In the present study, the authors performed a dynamic analysis of the desmodromic timing system, where the valve lifter is realized by conjugate cams, using a methodology of modal synthesis to examine the effects of the deformability of the principal parts, and evaluating the deformations and vibrations of the components under various ...
Oliveri, Salvatore +2 more
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An explicit–implicit method for flexible–rigid multibody systems
Finite Elements in Analysis and Design, 2001We address the solution of problems which include both flexible and rigid bodies. An explicit time integration scheme along with a finite element semi-discretization procedure is employed for flexible bodies, whereas an implicit conserving scheme is adopted for rigid bodies. For elements in each flexible body which lie on an interface with a rigid body,
Lim, Heetaek, Taylor, Robert L.
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Conserving Properties in Constrained Dynamics of Flexible Multibody Systems
Multibody System Dynamics, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
García Orden, Juan C. +1 more
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Flexibility effects in multibody system dynamics
Mechanics Research Communications, 1980During the past f ive years there has been an increasing interest in the development of computer oriented methods for studying the dynamics of multibody systems. A "multibody system" as discussed herein, is defined as an "open-tree" or "open-chain" of connected r igid bodies such that adjacent bodies share at least one common point and such that no ...
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Vibrations analysis of flexible multibody systems
Dynamics and Stability of Systems, 1991This paper is the continuation of a previous work (Pascal, 1988a) in which we consider the dynamical analysis of flexible space vehicles modelled by a chain of rigid and elastic bodies with tree structure. The multibody system consists of n + 1 bodies (S$iiei:) (i = 0, 1,…n) interconnected by n hinges la (a = 1,…n). The only external forces and torques
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Flexible Bodies in Multibody System Codes
Vehicle System Dynamics, 1998SUMMARY Multibody codes are'efficient tools to simulate nonlinear dynamic behaviour of rigid and flexible multibody systems undergoing large overall motions overlaid by small elastic deformation. This paper gives an overview of common approaches for the equations of motion of flexible body models and presents a general way to prepare the required data ...
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