DAEs and PDEs in elastic multibody systems

被引：0
|
作者：
B. Simeon
机构：
[1] Fachbereich Mathematik,
[2] TU Darmstadt,undefined
[3] Schloßgartenstraße 7,undefined
来源：
Numerical Algorithms | 1998年 / 19卷
关键词：
DAEs; elastic multibody systems; numerical simulation; slider crank; 65L05; 70-08;
D O I：
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学科分类号：
摘要：
Elastic multibody systems arise in the simulation of vehicles, robots, air- and spacecrafts. They feature a mixed structure with differential-algebraic equations (DAEs) governing the gross motion and partial differential equations (PDEs) describing the elastic deformation of particular bodies. We introduce a general modelling framework for this new application field and discuss numerical simulation techniques from several points of view. Due to different time scales, singular perturbation theory and model reduction play an important role. A slider crank mechanism with a 2D FE grid for the elastic connecting rod illustrates the techniques.
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页码：235 / 246
页数：11
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