冲击振动能量通过“齿轮-轴-轴承-轴承座”多界面传递损耗研究  

Study on decaying of shock vibration energy during transmission through multi-interfaces in gear-shaft-bearing-housing system

作　　者：邵毅敏[1] 陈再刚[1] 周晓君[1] 葛亮[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400045

出　　处：《振动与冲击》2009年第6期60-65,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(50675232);教育部科学技术研究重点项目(106139);重庆市自然科学基金重点项目(CSTC2007BA6021)

摘　　要：齿轮啮合时因刚度变化、缺陷和加工装配误差等各种激励源产生的具有冲击特点的振动能量,在通过"齿轮-轴-轴承-轴承座-金属板"多界面时,其冲击振动能量的损耗与接触界面之间的关系是一个没有解决的难题,迫切需要解决。针对这个问题,对振动能量传递多界面进行了定义,并分别从能量峰值和RMS值的角度对冲击振动能量在多界面上传递损耗进行研究,提出了能量保持因子概念,用来描述其能量通过多界面的损耗关系,并通过实验获得了多界面的能量关系与能量保持因子的系数表。试验结果表明,能量保持因子及其能量关系可以用于描述冲击振动能量通过多界面时的传递损耗。In order to find the relationship between contact interfaces and the vibration energy consumed on the gear-shaft-bearing-housing-casing multi-interfaces, the definitions of multi-interfaces, through which the vibration energy is delivered, were provided. The energy peak value and the energy root mean square (RMS) value were examined. The term of energy-maintaining factor was proposed to illustrate the relationship between the contact interfaces and the vibration energy. A table of factors depicting the relationships between the energies on multi-interfaces as well as the energy-maintaining factor was obtained based on experimental studies. The results show that the energy-maintaining factor and the energy relationships can be used to explain the decaying of shock vibration energy in mechanical transmissions.

关 键 词：冲击振动 多界面 能量传递损耗 能量保持因子 

分 类 号：TB532[理学—物理]