The loads and the distribution of stress amplitude frequency are obtained by cycle count and reliable data for fatigue design are provided by probability density function fit.
用循环计数法求出载荷及应力幅频率分布，用概率密度函数拟合，为疲劳设计提供可靠性高的数据资。
2
According to the traditional flood frequency analysis, flood data are assumed to have been taken from a known distributionfunction as a whole.
传统的洪水频率分析都是假定洪水资料取自某一已知分布函数的总体。
3
In chapter 4, from molecule beam's speed distributionfunction, this paper deduces energy, momentum, frequency and wavelength distributionfunction.