离心振动复合环境试验系统的动力学建模

摘要

对离心振动复合环境系统进行动力学建模，分析离心机和振动台的结构特点和作用机理，采用多刚体动力学的研究方法，基于Hamilton原理得到系统的Lagrange方程建立了振动台系统多刚体动力学方程，最后建立了离心振动复合系统的动力学模型，并给出系统方程动力学响应分析的求解方法。%The dynamical modeling of centrifugal force-vibration compound environment experiment system is clearly formulated in this paper. Based on the analysis of the structural characteristic and the action mechanism between the centrifuges and the vibrator, the mufti-rigid body dynamics is adopted to formulate the mechanics model of vibrator installed on the arm of centrifuge. Then the dominant motion equation that is based upon Hamilton principle and Lagrange motion equation is obtained. Thereby the governing function of centrifugal force-vibration compound environment experiment system is obtained and the relevant numerical solution methods of the dynamics response are given.