结构动力可靠性探讨

结构可靠度是结构设计的重要指标之一。在工程设计中,作用在结构上的载荷往往是一个随机过程,例如,作用在高耸结构上的阵风,作用在建筑物上的地震载荷以及作用在火箭弹体上的脉动载荷等等。本文采用结构有限元分析方法,基于首次超越破坏模型和累积疲劳损伤破坏模型,介绍了一个计算在随机载荷和随机运动约束下的结构动力点可靠度的计算系统。

Discussion on Structural Reliability For Random Excitation

The reliability is one of the most important performance for a engineering structure. Dynamic loads actad on the structure, such as wind forces on tall buildings,strong earthquake motion effects on buildings and pressure on missile sunfaces are random. A FEM program which can be used to calculate the reliability of a structure under random excitations is presented. Two primary failure criteria are considered. They are catastrophic failure and fatigue failure.