系统可靠性计算的计算机仿真方法

随着各种新型复杂系统的建立和工程项目的实施,常规可靠性设计理论与工程实践的矛盾日益突出。当进行可靠性计算时,由随机应力和随机强度的概率密度函数来获取功能函数的概率密度函数较困难,文章提出了将模糊可靠性设计问题转化为常规可靠性设计问题求解的思路,给出了转化的基本原理和方法,由此推出了一系列的计算公式及其仿真方法,使可靠性设计方法能同时处理设计中的随机性和模糊性。

Computer simulation method of the reliable calculation of the systems

With the establishment of various new complicated systems and the complement of a number of projects, the regular reliable designing theory contradicts more and more the project performance. When the reliable calculation is carried on, it is more difficult to work out the probability density function of the function one from the probability density function of random force and random endurance. This article suggests a way of turning ambiguous reliable designing into regular reliable designing and also indicates the basic principle and methods of the transformation, out of which come a series of calculating formulas and simulation methods, which enable the reliable designing to deal with the randomness and ambiguity in the design at the same time.