摘要
研究了单自由度滑动摩擦系数随相对速度变化的干摩擦振动系统简谐激励响应计算问题 ,提出了 Fourier级数展开结合一次谐波近似方法 ,并推导了相应的频响方程。通过一个数值算例分析 ,考察了简化为理想干摩擦模型时带来的计算误差。
By using Fourier series and basic harmonic balancing approximate technique,the response computation of a single degree of freedom dry friction damped system with velocity dependent variable coefficient of sliding friction under harmonic excitation was discussed.And the amplitude frequency equation was also derived. At the same time,the error between the response of the system with coulomb friction and that of the system with velocity dependent variable coefficient of sliding friction was put forward.
出处
《机械科学与技术》
CSCD
北大核心
2000年第5期745-746,749,共3页
Mechanical Science and Technology for Aerospace Engineering
基金
中国博士后科学基金!( [中博基 ] 97-7)资助项目
关键词
非线性振动
滑动摩擦系数
库仑干摩擦模型
计算
Nonlinear vibration
Coefficient of sliding friction
Coulomb friction model
Response computation
