Static correction modes in dynamical simulation of flexible multibody system with closed loops

摘要

By use of the recursive formulation of flexible multibody system with closed loops, this paper studies the dynamic simulation of complicated multibody system. The conception of static correction modes in struc- tural dynamics is introduced to present the local deformation effects due to reaction forces at kinematic joints. A space four-bar mechanism is utilized here as an example to describe the method of selecting static correction Modes. Compared with vibration normal modes, static correction modes are demonstrated to by effective in nu- Merical simulation.