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中文摘要：
针对老龄飞机疲劳（耐久性）延寿试验中存在的问题，提出了一种老龄飞机疲劳（耐久性）延寿试验周期的确定方法。在3种不同情况下对延寿试验机疲劳（耐久性）试验载荷谱的选取进行了分析；根据服役飞机的实际飞行情况，按等损伤原则对服役飞机的总当量飞行小时数进行了计算；以飞机疲劳寿命母体分布为基础，通过数值仿真方法对老龄飞机剩余疲劳（耐久性）寿命疲劳分散系数进行了分析，并确定了老龄飞机疲劳（耐久性）延寿试验周期；最后通过算例分析证明了方法的可行性。
英文摘要：
Aimed at the problem of fatigue test to prolong life for aging aircraft,the method of determining fatigue test period to prolong fatigue（durability）life for old aircraft is put forward.The three different conditions were analyzed for choosing the fatigue test loadings;Based on the actual flying hours,the total equivalent flying hours were calculated by damage equivalency principle for service aircraft;The fatigue scatter factor of residual fatigue life was analyzed by numerical simulation based on fatigue life distribu-tion,and the fatigue test period for aging aircraft was determined;Finally,this method was illuminated by a calculation example.
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