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主要讨论基于摩擦磨损的数学模型的分布性态和分布近似问题。引用无穷小概念,结合0-1律讨论了该模型的分布收敛于退化正态分布的条件。并在一定的矩条件下,利用特征函数,得到了该模型的分布近似于标准正态分布的误差。
This paper mainly discusses the distribution and distribution approximation of the mathematical model based on friction and wear. The infinitesimal concept is referenced and the condition that the distribution of this model converges to the degenerate normal distribution is discussed in combination with 0-1 law. Under the condition of certain moment, using the eigenfunction, we get the error that the distribution of the model is similar to the standard normal distribution.