吉首大学学报（自然科学版）2003，Vol.24Issue(3)：6-12,7.
类椭圆非线性迟滞隔振系统的动力学模型
Ellipse- Like Dynamic Model for Nonlinear Hysteretic Vibration Isolation System
摘要
Abstract
In this paper, an ellipse - like function is defined firstly, then a dynamic model for nonlinear hysteretic vibration isolation system isproposed by using such function, and the practical expression of the system is deduced. The dynamic model is constructed by nonlinear stiff-ness and nonlinear hysteretic damping, all of the parameters in the model have specific meanings, the stiffness coefficients reflect the hnearand nonlinear characteristics, and the damping function describes the hysteretic anddissipative characteristics of the vibration isolation systemperfectly. The dynamic model contains a parameter called damping component function, which describes all kinds of damping componentsprobably existing in the vibration isolation system,such as friction damping, viscous damping and high- order one etc. Hence, the dynamicmodel can describe the hysteretic and dissipative characteristics more precisely; simultaneously, the term of nonlinear hysteretic dampingforce inthe dynamic model is expressed as the function of displacement, thus the model proposed in this paper decreases amount of measur-ing work, and simplifies the process of numerical calculations. The restoring force vs. displacement loops of the vibration isolation system arereconstructed by using the dynamic model proposed in this paper, The results show that the theoretic loops agree well with the correspondingexperimental loops.关键词
动力学模型/非线性迟滞隔振系统/类椭圆函数/阻尼Key words
dynamic model/nonlinear hysteretic vibration isolation system/ellipse- like function/damping分类
机械制造引用本文复制引用
赵荣国,陈忠富,徐友钜,胡绍全,黄西成..类椭圆非线性迟滞隔振系统的动力学模型[J].吉首大学学报（自然科学版）,2003,24(3):6-12,7.基金项目
Supported by National Natural Science Foundation of China(10232040) （10232040）
