【摘要】 机械或结构的疲劳现象极为复杂,受许多因素的影响。重点分析了影响机械或结构疲劳强度可靠性的模糊因素:疲劳强度可靠性分析中的主观不确定性,载荷的模糊性,某些疲劳断裂参数的模糊性,失效准则中的模糊性。指出了建立模糊可靠性理论的必要性。更多还原

【Abstract】 Affected by many factors, the fatigue character of machinery and structure is very complicated. This paper emphasizes on analyzing the fuzzy factors that affect machinery’s or structure’ s reliability of fatigue: subject uncertainty in reliability analysis of fatigue, the fuzziness of loading, the fuzziness of parameters in some fatigue fracture and the fuzziness in failure criterion, then points out the necessity of developing fuzzy reliability theory.更多还原