航空科学技术2024，Vol.35Issue(4)：52-59,8.DOI:10.19452/j.issn1007-5453.2024.04.007
发动机反推运动机构可靠性优化设计研究
Research on Reliability Optimization Design of Engine Reverse Thrust Mechanism
摘要
Abstract
According to the configuration and working condition of thrust reverse mechanism,the theoretical model of kinematics of the thrust reverse mechanism is established.Through the kinematics simulation,the rationality and correctness of the established model are verified.Considering that the blocker door needs to be as stable as possible in the whole deflection process,the maximum angular acceleration of the blocker door in the whole deflection process is taken as the optimization goal of the thrust reverser mechanism,and each motion mechanism of the device meets the geometric relationship as the constraint condition,and the deterministic optimization model of the thrust reverser mechanism is established.At the same time,considering the two failure modes of the reverse mechanism,reliability is considered in the optimization design,and a reliability-based design optimization model is established.The optimal design calculation of the thrust reverser mechanism is carried out in Matlab.The results show that the angular acceleration of the blocker door in the whole movement process is further optimized under the condition of meeting the reliability constraints,and the whole mechanism does not interfere in the movement,and the whole thrust reverser device can work normally.The modeling process and reliability-based design optimization method in the paper can provide reference for the structural design of the thrust reverse mechanism.关键词
反推装置/阻流门/运动机构/可靠性/优化设计Key words
thrust reverse device/blocker door/mechanism/reliability/design optimization分类
航空航天引用本文复制引用
常琦,胡颖石,周长聪,何宝明,冯奥博,王元生..发动机反推运动机构可靠性优化设计研究[J].航空科学技术,2024,35(4):52-59,8.基金项目
航空科学基金(2020Z009053003) （2020Z009053003）
西北工业大学博士论文创新基金(CX2022012) Aeronautical Science Foundation of China (2020Z009053003) （CX2022012）
Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University( CX2022012) （ CX2022012）
