Evaluation of inertial integrals for multibody dynamics
Abstract
A simple technique is presented to evaluate the inertial integrals which arise in the flexible dynamics modeling of nonlinear multibody systems. The derivation provides the link between the continuum representation of a flexible body and the practical implementation of the finite element method. It is shown that the inertial integral evaluations introduces no approximations beyond those inherent to the finite element if one adopts a particular basis in the continuum expansion of the elastic displacement field.
- Publication:
-
Journal of Guidance Control Dynamics
- Pub Date:
- May 1994
- DOI:
- 10.2514/3.21244
- Bibcode:
- 1994JGCD...17..624M
- Keywords:
-
- Continuum Mechanics;
- Dynamic Models;
- Finite Element Method;
- Flexible Bodies;
- Inertia;
- Integral Calculus;
- Integral Equations;
- Nonlinear Systems;
- Continuums;
- Displacement;
- Physics (General)