多自由度时变结构时变动力可靠性超越率分析

Passage Rate Analytic Method of Time-Dependent Dynamic Reliability on Time-Dependent Structure of Multi-Degree of Freedom

本文对多自由度时变结构建立了随机振动微分方程，研究了在地震荷载作用下结构的时变可靠性，提出了时变动力可靠性超越率分析方法，并对几类特殊的安全区域给出了超越率计算公式．

The random vibration differential equation on time dependeat structure of multi-degree of freedom is set up. The time-dependent dynamic reliability of structure under the earthquake effect is analyzed. The passage rate analytie method of the reliability is proposed,and the passage rate formulas of reliability on a few special safety regions are given in the paper.