摘要
从经济性和维修性的要求出发,保证飞机结构在使用寿命期间内,在规定的工作条件下完成规定的功能后,因疲劳断裂失效的可能性(失效概率)减至最低程度。为了满足经济寿命的要求,科学地确定飞机结构的目标设计寿命,将安全寿命设计与损伤容限设计有机结合,以此建立飞机结构经济寿命耐久性模型,合理地制定检修周期,既能做到充分挖掘飞机结构潜力,又能保障个体飞机结构安全。将飞机结构安全寿命可靠性设计发展为飞机结构经济寿命可靠性设计,为飞机长寿命、高可靠性和低成本的目标研制构建了理论框架。
The failure of aircraft structures caused by fatigue and rupture is minimized during the period when the aircraft structures perform their intended function under specified conditions by taking economy and maintenance into account. To meet economic life,objective life of design phase should be determined scientifically.At the same time,the model of economic life is put forward by incorporating the design of safe life with damage tolerance design organically and the safety and potential of the structure can be guaranteed by arranging the inspection period properly.The reliability design and economic life assessment of aircraft structures is presented.It is developed by combining safe life design with fracture mechanics.It is of significant scientific value for products to provide longer economic life,higher reliability,and lower cost.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2012年第3期355-363,510,共9页
Journal of Vibration,Measurement & Diagnosis
基金
国家自然科学基金资助项目(编号:50135010)
关键词
经济寿命可靠性设计
结构可靠性
经济寿命
飞行安全保障
reliability design and economic life,reliability of aircraft structures,economic life,flight safety of the structure
