摘要
引入非局部记忆的滞后摩擦力模型,应用数值方法研究平台和缘板阻尼单自由度叶片模型的共振响应,分析了阻尼器正压力、激振力水平和摩擦系数对共振振幅及峰值频率的影响。研究表明,阻尼器是一种非常有效的结构减振方法,并且缘板阻尼器的减振效果更好。
The frictional force model of rate-independent hysteresis with non-local memory was introduced to numerically investigate the resonant responses of a single-DOF blade system. The influences of the normal pressure, the forcing amplitude and the friction coefficient on the resonant amplitude and the corresponding frequency were analyzed. The results show that the dry friction in blades plays a very important role in reducing vibration amplitude of the blades.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第5期53-55,共3页
Journal of Vibration and Shock
基金
国家自然科学基金项目(10672115)
高校博士学科点专项科研基金项目(20060056011)资助
关键词
阻尼叶片
共振
数值分析
blade with damper
resonance
numerical analysis
