起落架下位锁作动筒结构设计和优化

Structural Design and Optimization of Underlock Cylinder of Landing Gear

根据前起下位锁作动筒的工况对其进行了受力分析,确定前起下位锁作动筒主要承力件最严酷受力环境;采用有限元针对下位锁作动筒的强度进行了仿真计算,并依据计算结果对下位锁作动筒进行了结构优化,总结了起落架系统结构设计和优化流程。本文探索了基于有限元法的结构分析与优化技术,为起落架系统结构设计提供了参考。

Based on the analysis of the force acting on the front-up and lower-position lock cylinder, the main load-bearing parts of the front-up and lower-position lock cylinder are determined and the most severe load-bearing environment is determined. Based on the calculation results, the structural optimization of the lower lock actuator is carried out, and the structural design and optimization flow of the landing gear system are summarized. It provides a reference for the structural design of landing gear system.