Results 191 to 200 of about 2,154 (226)

Dynamics of general flexible multibody systems

International Journal for Numerical Methods in Engineering, 1990
AbstractA 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
openaire   +2 more sources

Flexible Bodies in Multibody Systems

1998
The motion of flexible bodies in multibody systems can be represented in many applications as a superposition of a large reference motion and small deformations, which allows linearisation in the deformation variables. The linearisation procedure requires a careful analysis of geometric stiffening.
openaire   +1 more source

Optimization of Flexible Multibody Systems

2009
The design process of road vehicles, very often based on intuition and experience, can be greatly enhanced through the use of generalized optimization techniques. In a first application, the vehicle optimum design is achieved through the use of an algorithm with finite differences sensitivities.
openaire   +1 more source

Vibrations analysis of flexible multibody systems

Dynamics and Stability of Systems, 1991
This 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
openaire   +1 more source

Conserving Properties in Constrained Dynamics of Flexible Multibody Systems

Multibody System Dynamics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
García Orden, Juan C., Goicolea, José M.   +1 more
openaire   +2 more sources

Passivity-based control of nonlinear flexible multibody systems

IEEE Transactions on Automatic Control, 1995
Summary: Global asymptotic stability of a class of nonlinear multibody flexible space structures under certain dissipative compensation is established. Furthermore, for an important subclass of such systems, the stability is shown to be robust to certain types of actuator and sensor nonlinearities.
Atul G. Kelkar, Suresh M. Joshi, Thomas E. Alberts   +2 more
openaire   +1 more source

Sensivity Analysis of Flexible Multibody Systems

Volume 6: 5th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C, 2005
In this work a general formulation for the computation of the first order analytical sensitivities based on the direct method is presented. The direct method for sensitivity calculation is obtained by differentiating the equations that define the response of the flexible system with respect to the design variables.
M. A. Neto, R. P. Leal, J. Ambro´sio
openaire   +1 more source

Symbolic computations in flexible multibody systems

Nonlinear Dynamics, 1996
The 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 ...
openaire   +1 more source

Forward Dynamics of Flexible Multibody Systems

1994
So 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
openaire   +1 more source

Flexibility effects in multibody system dynamics

Mechanics Research Communications, 1980
During 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 ...
openaire   +2 more sources