Numerical analysis of flexible multibody systems

被引：17
|
作者：
Simeon, B [1 ]
机构：
[1] Univ Karlsruhe, Fac Math, Ctr Sci Comp & Math Modelling, D-76128 Karlsruhe, Germany
来源：
MULTIBODY SYSTEM DYNAMICS | 2001年 / 6卷 / 04期
关键词：
flexible MBS; numerical analysis; stiff mechanical systems; DAEs;
D O I：
10.1023/A:1012096631385
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Flexible multibody systems feature a coupled mathematical model with ODEs or DAEs governing the gross motion and PDEs describing the elastic deformation of particular bodies. Frequently, semidiscretization of elastic members leads to a stiff mechanical system with widely different time scales. This paper investigates the behavior of numerical time integration methods at flexible multibody systems and gives some recommendations. Simulation results for a slider crank mechanism and a truck model illustrate what can go wrong and how implicit methods like RADAU5 can be effectively applied.
引用
收藏
页码：305 / 325
页数：21
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