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系统阐述了非线性结构系统可靠性理论的主体框架和模拟算法,重点分析了全局分枝-约界法、快速概率积分法、响应面法、随机有限元法和Monte Carlo模拟法的主要优缺点,及其对强非线性问题和存在失效演化历程的复杂结构系统可靠性分析和评估问题的适应能力.在此基础上,对当前研究工作中存在的一些共同性问题进行了剖析,对将智能化方法引入非线性结构系统可靠性工程领域的可行性和具体实现途径进行了阐述.
The main framework and simulation algorithms for the reliability theory of nonlinear structural systems are systematically described. The main advantages and disadvantages of the global branch-and-bound method, rapid probability integration method, response surface method, stochastic finite element method, and Monte Carlo simulation method are mainly analyzed. , and its ability to analyze and evaluate the reliability of complex structural systems with strong nonlinear problems and existing failure evolution processes. Based on this, it analyzes some of the common problems existing in current research work. The feasibility and specific implementation approaches of the nonlinear engineering system in the field of reliability engineering were introduced.