摘要
摩擦现象广泛存在于机械运动中,不仅影响机械的寿命、精度和工作效率,还会对机械的动态特性产生较大的影响。但在常见的机械振动研究分析中,摩擦力作为阻尼所发挥的作用却常常被忽略,使研究结果不能真实反映事实。文中从理论、解析、仿真等多个方面,研究了库仑摩擦的非线性特性对自由振动系统运动特性的影响。
The frictions widely exists in the mechanical movements, which not only affects the lifetime,accuracy and work efficiency of the mechanisms, but also has effects on the dynamic features of the mechanisms. However, studying the usual mechanical vibrations, we always ignore the functions of frictions which are thought to be dampings, so that the studying results could not reflect the real truths. In this paper, we analyzed the impacts of the nonlinear characteristics of Coulomb＇s friction on the free vibration＇s moving features, from the adpects of theoretics,analysis and simulation of which.
出处
《机械工程师》
2010年第8期52-54,共3页
Mechanical Engineer
关键词
库仑摩擦
线性
非线性
自由振动
coulomb＇s friction
liner
nonlinear
free vibration＇s features
