航空学报2026，Vol.47Issue(3)：239-254,16.DOI:10.7527/S1000-6893.2025.32310
内埋式舱门机构的混合时变可靠性分析
Hybrid time-dependent reliability analysis of embedded cabin door mechanism
摘要
Abstract
As a key component of fighter aircraft,the embedded cabin door mechanism has a significant impact on the stealth performance of the fighter's cabin door.In order to solve the problem of the step difference that may occur in the movement stage of the embedded cabin door mechanism with pre-deformed cabin door in advanced fighter air-craft,this paper analyzes the contact force and aerodynamic load of the embedded cabin door mechanism based on the established rigid-flexible coupling model of the embedded cabin door.On this basis,in order to solve the problem of accuracy reliability analysis of the cabin door mechanism,a time-dependent reliability analysis method based on symbolic misjudgment probability under hybrid uncertainty is proposed,which further improved the reliability analysis efficiency of the cabin door mechanism.First,the formula of the symbolic misjudgment probability is derived.Then,a symbolic misjudgment probability function is established as a learning function to simultaneously update random samples,interval samples,and time nodes.The accuracy and efficiency of the method are verified through a numeri-cal example.Finally,the upper and lower bounds of the time-dependent failure probability of the embedded cabin door mechanism throughout the movement process are calculated using this method,providing a quantitative basis for the safety margin assessment and reliability design optimization of the embedded cabin door mechanism.关键词
内埋式舱门机构/刚柔耦合/符号误判/混合不确定性/时变可靠性Key words
embedded cabin door mechanism/rigid-flexible coupling/symbolic misjudgment/hybrid uncertainties/time-dependent reliability分类
航空航天引用本文复制引用
陈毅,王攀,李贵杰,辛富康..内埋式舱门机构的混合时变可靠性分析[J].航空学报,2026,47(3):239-254,16.基金项目
国家自然科学基金(52375157) National Natural Science Foundation of China(52375157) （52375157）
