机构地区: 北京交通大学机械与电子控制工程学院
出 处: 《铁道机车车辆》 2006年第2期19-21,共3页
摘 要: 工程实际中很多动应力实测数据都是不完整的,而确定其分布对疲劳寿命的估计极为重要。现介绍一种以χ2值构建非线性极小化问题模型来求解不完整数据的分布参数及确定分布类型的方法,并通过实例证明了该方法的可行性。 Many data of dynamic stress belongs to incomplete data distributions.The distribution of these data is very important for estimating fatigue of engineering structure. The method by constructing nonlinear unconstraint minimum X^2 value model for incomplete data distribution parameter estimation and confirming its distribution type was introduced in this paper, and It was proved to be available by the computing case.
领 域: [机械工程]