论文部分内容阅读
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。
Starting from the requirements of economy and maintainability, it is guaranteed that the fatigue failure failure probability (failure probability) will be minimized after the aircraft structure has fulfilled the prescribed functions under the specified working conditions during its service life. In order to meet the requirement of economic life, the target design life of aircraft structure is scientifically determined, the design of safety life and the design of damage tolerance are combined organically to establish the economic life durability model of aircraft structure and make reasonable maintenance cycle, Fully tap the potential of aircraft structure, but also to protect the safety of individual aircraft structure. The reliability design of aircraft structure safety life is developed into the reliability design of aircraft structure economic life, which establishes the theoretical framework for the target development of aircraft long life, high reliability and low cost.