摘要
文中将建立旋转矩形孔薄壁圆环截面突变处的波传播模型,研究振动弹性波反射和透射特性,结合相位封闭原理,给出振动特征方程,得到薄壁圆环的各阶模态频率、模态形状和分支图.将静止矩形孔薄壁圆环的固有频率与有限元分析法求得的固有频率进行比较,验证行波法计算的准确性.研究将为轴承实体保持架的动力学计算提供理论基础.
In this paper, the model of wave motion at the abruptly changed section of rotating thin ring with rectangular holes was built up, and wave transmission and reflection were analyzed. Combined with closure phase principle, the vibration characteristic equation was derived. Then, natural frequency, mode shape and bifurcation of frequency were given. Natural frequencies of static ring derived by wave propagation method are compared with the results of finite element analysis, which validates the wave propagation approach, and it provides a theoretical basis for dynamic calculation of bearing solid cage by wave propagation approach.
作者
黄迪山
林杰
张月月
何虹
Huang Dishan;Lin Jie;Zhang Yueyue;He Hong(School of Mechatronical Engineering and Automation,Shanghai 200072,China)
出处
《动力学与控制学报》
2019年第4期375-383,共9页
Journal of Dynamics and Control
基金
国家自然科学基金资助项目(51575330)~~
关键词
行波法
矩形孔薄壁圆环
传递矩阵
反射矩阵
透射矩阵
wave motion
thin ring with rectangular holes
propagation matrix
reflected matrix
transmitted matrix
