| 1. | In the traditional reliability model , the probability density function of random variable is important . so , in chapter 2 , the methods to get probability density function of engineering random variable are discussed . three methods , which include approximate method , monte - carlo simulation method and multiple parameter method , are compared by some examples . in chapter 3 , some non - probabilistic reliability models are discussed
在传统的概率可靠性模型中，变量的概率密度函数的确定非常重要，因此在本文第二章中，主要着力讨论工程随机变量概率密度函数的求解方法，说明原理，推导求解公式，并通过实际算例对近似解析法、 monte - carlo数字模拟法、多参数法三种方法进行对比。 |
