U型波纹管稳定性非线性有限元分析  

Nonlinear Finite Element Analysis of Stability of U-shape Bellows

作　　者：张庆[1] 王华坤[1] 王心丰[2] 

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]南京航空航天大学机电学院,南京210018

出　　处：《南京理工大学学报》2002年第3期270-273,共4页Journal of Nanjing University of Science and Technology

摘　　要：该文提出了利用有限元法 ,在考虑几何非线性 ,材料非线性情况下 ,对承受有轴向、横向、转角位移载荷和内压载荷的波纹管进行非线性静力分析 ,描述屈曲前的平衡路径、最终确定屈曲临界载荷 ,比较精确地反映了其力学性能 ,为波纹管的稳定性研究与设计提供了有效手段。In this paper, stability of bellows is studied by means of nonlinear finite element analysis. Under the circumstances of geometric nonlinearity and material nonlinearity, a static analysis is applied to the bellows which are loaded with axial, lateral,bending displacement and internal pressure. In the process of analysis the load condition is totally imitated.In this way the history of its deformation is described, so that buckling load is determined precisely. This method precisely describes the mechanical performance of U shaped bellows and provides an effective way for research and design stability of bellows.

关 键 词：U型波纹管 稳定性 非线性 有限元分析 设计 弹性元件 

分 类 号：TH703.2[机械工程—仪器科学与技术]