Error Correction Methods in Numerical Simulation for Unilateral Constraint Dynamics

Authors

Haitao Gao, College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
Yali Han, College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
Youxiong Xu, College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
Songqing Zhu, College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
Zailuo Wu, College of Mechanical Engineering, Nanjing Institute of Technology, Nanjing 211167, China;

Abstract

Abstract: Aiming at problem of calculation errors and constraint violation in numerical simulation for dynamics of unilateral constraint such as contact and collision, the error projection correction methods were put forward. On the basis of dynamical behavior of unilateral constraint described by linear programming model, mixed linear complementarity dynamics was built. Numerical simulation methods for the mixed linear complementarity dynamics were derived. In order to reduce calculation error and constraint violation caused by this error in the numerical simulation, an error correction method was built for correcting position and velocity error of numerical solution on the base of bilateral constraint model, then solving precision of unilateral constraint dynamics was improved. The correction method was verified by example and the results show that this correction method is able to improve effectively numerical simulation accuracy of unilateral constraint dynamics.

Recommended Citation

Gao, Haitao; Han, Yali; Xu, Youxiong; Zhu, Songqing; and Wu, Zailuo (2020) "Error Correction Methods in Numerical Simulation for Unilateral Constraint Dynamics," Journal of System Simulation: Vol. 27: Iss. 2, Article 4.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss2/4

First Page

240

Revised Date

2014-10-26

DOI Link

https://doi.org/

Last Page

245

CLC

TP391.9

Recommended Citation

Gao Haitao, Han Yali, Xu Youxiong, Zhu Songqing, Wu Zailuo. Error Correction Methods in Numerical Simulation for Unilateral Constraint Dynamics[J]. Journal of System Simulation, 2015, 27(2): 240-245.