航空工程进展2025，Vol.16Issue(1)：82-92,11.DOI:10.16615/j.cnki.1674-8190.2025.01.10
基于滑移率的起落架起转回弹载荷分析
Analysis of spin-up and spring back loads of landing gear based on slip rate
摘要
Abstract
The landing gear spin-up and spring back loads are the important part of the aircraft landing load.In order to effectively analyze the spin-up and spring back loads of the landing gear in the preliminary design stage,the two-wheel strut landing gear drop test dynamic model is established by using the nonlinear spring damping system at the center of the landing gear axle to simulate the strut elasticity,and the spin-up and spring back loads and its corre-sponding slip rate under the landing gear drop test of wheel reversal and actual aircraft landing are analyzed.The ef-fects of aircraft heading velocity,runway slip rate curve and wheel pre-rotation angular velocity on landing gear spin-up and spring back loads are analyzed.The results show that the landing gear drop test simulation results of wheel reversal and actual aircraft landing are similar and consistent;reducing the heading velocity of the aircraft,giving the wheel pre-rotation angular velocity and reducing the friction coefficient between the tire and the ground can reduce the spin-up loads.关键词
支柱弹性/起转回弹/动力学分析/落震试验/轮胎滑移率Key words
strut elasticity/spin-up and spring back/dynamic analysis/drop test/tire slip rate分类
航空航天引用本文复制引用
吴铭,聂宏,张明,史夏正..基于滑移率的起落架起转回弹载荷分析[J].航空工程进展,2025,16(1):82-92,11.基金项目
航空科学基金(2022Z029052001) （2022Z029052001）
