摘要
本文指出疲劳寿命试验数据是同时含有随机性和模糊性的随机 -模糊变量 ,提出了相应的疲劳寿命分布参数的随机 -模糊统计方法 ,包括随机 -模糊均值和方差 ,以及随机 -模糊概率分布的估计等。
This paper points out that the fatigue life is a random - fuzzy variable with both randomness and fuzziness, and bring forward the random - fuzzy statistical way fitting for this kind of variable, including estimating the random - fuzzy mean value, variance and the probability distribution. The results show that the method put forward in this paper can both think over the probability uncertainty and the fuzzy uncertainty of fatigue life contribution.
出处
《船舶力学》
EI
2001年第5期43-49,共7页
Journal of Ship Mechanics
基金
国家自然科学基金资助项目(59605010
59979015)
