摘要
金属橡胶是一种具有非线性恢复力的材料。在对其进行基于位移加载的动态试验中,其恢复力-位移曲线为—迟滞环。本文用理论和试验相结合的手段研究金属橡胶弹性元件的动力学建模,提出了一种新的模型,即广义恢复力模型。将迟滞回线分解为广义弹性力和广义阻尼力,模型中的参数由实验数据辨识。用所建模型重构恢复力-位移迟滞回线,结果表明该模型能很好描述这类非线性振动系统的特性。
The dynamic hysteretic loop model of metal-rubber was studied theoretically and experimentally.A new kind of model,the generalized resuming force model was put forward.The hysteretic loop was resolved into generalized e- lastic force and generalized damping force.The parameters of the model were identified taking advantage of the test data. The results prove that the model can meet the requirements of dynamic analysis of metal rubber in engineering.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第11期105-108,共4页
Journal of Vibration and Shock
基金
武器装备十一五预先研究资助项目(51312040405)
关键词
金属橡胶
广义恢复力
迟滞环
建模
metal rubber
generalized resuming force
hysteretic loop
modeling
