Parallel Implementation of a Low Order Algorithm for Dynamics of Multibody Systems on a Distributed Memory Computing System

2000 ◽  
Vol 16 (2) ◽  
pp. 96-108 ◽  
Author(s):  
S. Duan ◽  
K.S. Anderson
Keyword(s):  
Multibody Systems ◽  
Distributed Memory ◽  
Parallel Implementation ◽  
Computing System ◽  
Dynamics Of Multibody Systems ◽  
Distributed Memory Computing ◽  
Order Algorithm ◽  
Low Order

An Iterative Approach to Multibody Simulation Dynamics Suitable for Parallel Implementation

1993 ◽  
Vol 115 (4) ◽  
pp. 730-735 ◽  
Author(s):  
I. Sharf ◽  
G. M. T. D’Eleuterio
Keyword(s):  
Multibody Systems ◽  
Parallel Implementation ◽  
Solution Procedure ◽  
Parallel Structure ◽  
Iterative Approach ◽  
Multibody Simulation ◽  
Constraint Forces ◽  
Overhead Cost ◽  
Dynamics Of Multibody Systems ◽  
Jacobi Iteration

This paper presents a new solution procedure for simulation dynamics of multibody systems. The method is applicable to open chains with general interbody constraints. It is based on obtaining an explicit solution for the joint constraint forces by means of iterative techniques. We show that the algorithm possesses a parallel structure which matches the topology of the system. Numerical results for an anthropomorphic manipulator indicate that the conjugate-gradient Jacobi iteration is computationally most efficient. An estimate for the parallel efficiency of this scheme is obtained by combining the theoretical bound for parallel complexity with an approximate overhead cost associated with parallel implementation.

scholarly journals Internal dynamics of multibody systems

2021 ◽  
Vol 152 ◽  
pp. 104931
Author(s):  
Lukas Lanza
Keyword(s):  
Multibody Systems ◽  
Internal Dynamics ◽  
Dynamics Of Multibody Systems

scholarly journals Dynamics of Multibody Systems With Spherical Clearance Joints

2005 ◽  
Author(s):  
P. Flores ◽  
J. Ambro´sio ◽  
J. C. P. Claro ◽  
H. M. Lankarani
Keyword(s):  
Contact Force ◽  
Multibody Systems ◽  
Contact Forces ◽  
Force Model ◽  
Clearance Joints ◽  
Continuous Contact ◽  
Clearance Joint ◽  
Contact Force Model ◽  
Dynamics Of Multibody Systems ◽  
The Impact

This work deals with a methodology to assess the influence of the spherical clearance joints in spatial multibody systems. The methodology is based on the Cartesian coordinates, being the dynamics of the joint elements modeled as impacting bodies and controlled by contact forces. The impacts and contacts are described by a continuous contact force model that accounts for geometric and mechanical characteristics of the contacting surfaces. The contact force is evaluated as function of the elastic pseudo-penetration between the impacting bodies, coupled with a nonlinear viscous-elastic factor representing the energy dissipation during the impact process. A spatial four bar mechanism is used as an illustrative example and some numerical results are presented, being the efficiency of the developed methodology discussed in the process of their presentation. The results obtained show that the inclusion of clearance joints in the modelization of spatial multibody systems significantly influences the prediction of components’ position and drastically increases the peaks in acceleration and reaction moments at the joints. Moreover, the system’s response clearly tends to be nonperiodic when a clearance joint is included in the simulation.

scholarly journals Dynamics of Multibody Systems in Research and Education

2017 ◽  
Vol 21 (3) ◽  
pp. 4-5
Author(s):  
Štefan Segľa
Keyword(s):  
Multibody Systems ◽  
Dynamics Of Multibody Systems ◽  
Research And Education

A method for solving the dynamics of multibody systems with rheonomic and nonholonomic constraints

1996 ◽  
Vol 17 (6) ◽  
pp. 577-584 ◽  
Author(s):  
Shui Xiaoping ◽  
Zhang Yongfa
Keyword(s):  
Multibody Systems ◽  
Nonholonomic Constraints ◽  
Dynamics Of Multibody Systems

Dynamics of Multibody Systems with Friction-Affected Sliding Joints

2010 ◽  
pp. 468-475
Author(s):  
Li Fu ◽  
Xinghua Ma ◽  
Yunchuan Liu ◽  
Zhihua Li ◽  
Yu Zheng ◽  
...  
Keyword(s):  
Multibody Systems ◽  
Dynamics Of Multibody Systems ◽  
Sliding Joints
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