On Lagrange multipliers in flexible multibody dynamics

被引:58
|
作者
Simeon, Bernd [1 ]
机构
[1] Tech Univ Munich, Zentrum Math, D-85748 Garching, Germany
关键词
Lagrange multipliers; flexible multibody systems; constraints; differential-algebraic equations (DAEs); saddle point problems; numerical simulation;
D O I
10.1016/j.cma.2005.04.015
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Lagrange multiplier technique plays a key role for the treatment of constraints in multibody systems. In contrast to the well-understood rigid body case, the formulation of constraints for elastic bodies requires special care. This paper provides an introduction to the underlying mathematical theory and shows which models are well-defined and which are questionable. Additionally, estimates on the influence of perturbations are given. A simulation example illustrates the results. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:6993 / 7005
页数:13
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