α-l型区间可靠性分析方法及其工程应用  

Reliability Analysis Method for Interval and its Engineering

作　　者：吕程诚[1] 高宗战[2] 张峰[2] 

机构地区：[1]中国商用飞机有限责任公司上海飞机设计研究院,上海201210 [2]西北工业大学力学与土木建筑学院,陕西西安710129

出　　处：《航空计算技术》2016年第3期13-16,共4页Aeronautical Computing Technique

基　　金：国家自然科学基金青年项目资助(51205312);航空科学基金项目资助(01)(201401530042);高等学校博士学科点专项科研基金项目资助(20136102120032);西北工业大学基础研究基金项目资助(JC20100232)

摘　　要：在区间非概率可靠性模型的基础上,以区间长度l和区间下限α为结构系统变量的输入参数,重新定义了一种新的可靠性指标,分析得到了这种可靠性分析方法的判定依据;在此基础上,在线性和非线性条件下讨论了结构可靠度的计算方法。以某型飞机防冰引气管结构为例,进一步探讨了所提方法在共振可靠性分析当中的工程应用。Based on the interval non- probabilistic reliability model,a new reliability index is defined,in which the interval length l and the interval lower limit α is thought as input parameters of structural system. At the same time,the judging basis of the reliability analysis method is obtained by analysis,and the reliability calculation method are discussed separately under linear and non- linear condition. Finally,taking anti-icing tube of a certain aircraft for example,the engineering application of this method proposed is further discussed on the resonance reliability analysis.

关 键 词：区间可靠性 可靠性指标 引气管 共振可靠性 

分 类 号：O221[理学—运筹学与控制论]