航空科学技术2025，Vol.36Issue(6)：70-77,8.DOI:10.19452/j.issn1007-5453.2025.06.008
起落架缓冲性能关键参数敏感度分析与多目标优化研究
Landing Gear Buffer Performance Sensitivity Analysis and Multi-Objective Optimization of Key Parameters
摘要
Abstract
Landing gear plays the role of bearing impact load and absorbing landing impact energy during takeoff and landing.The landing performance of the landing gear is related to the multi-parameter design of the system.This paper takes the landing gear of a certain UAV as the research object,establishes the dynamic analysis model of its landing buffer,analyzes the sensitivity of the impact of the performance of the important structure filling parameters of the buffer system,obtains the key parameter group of the landing gear buffer performance optimization,and adopts genetic algorithm to carry out multi-objective optimization of the impact performance of the aircraft during the landing stage.The results show that the main oil hole flow coefficient,effective flow area and effective oil pressure area have significant effects on the buffering performance,and the buffer charging pressure and filling volume also have certain effects on the buffering performance.After optimization,the landing gear buffer performance is improved,the maximum landing load is reduced by 4.06%,and the buffer efficiency is increased by 4.44%.The research results of this paper will provide a reference for the subsequent development of high-performance aircraft landing gear,buffer performance analysis and optimization.关键词
起落架/缓冲性能/敏感度分析/遗传算法优化Key words
landing gear/buffer performance/sensitivity analysis/genetic algorithm optimization引用本文复制引用
朱晨辰,黄兆铭,刘水不腐..起落架缓冲性能关键参数敏感度分析与多目标优化研究[J].航空科学技术,2025,36(6):70-77,8.基金项目
航空科学基金(2023M009023006) Aeronautical Science Foundation of China(2023M009023006) （2023M009023006）
