发动机推力及拦阻力对起落架载荷的影响分析

摘要

以某型舰载飞机为研究对象,建立舰载机拦阻着舰动力学模型,考虑了拦截索拉力、气动力和发动机推力.对模型进行数值求解,分析在拦阻过程中发动机推力及拦阻力对起落架缓冲器轴力的影响.结果表明:在舰载机着舰前0.3s内,发动机推力和拦阻力对起落架缓冲器轴力影响很小；0.3 s后发动机推力会同时增大起落架缓冲器轴力峰值；拦阻力会增大前起落架缓冲器轴力峰值,减小主起落架缓冲器轴力峰值.%A dynamic model of landing is developed and investigated based on a certain type of carrier aircraft.Arresting force,air dynamic force and engine thrust are concerned.With numerical solution,effect of engine thrust and arrest force to the shock absorber's load is studied.The result shows that engine thrust and arrest force affect little during the first 0.3s of landing process,then engine thrust enlarge peak axial forces of all the gears at the same time while arrest force enlarges peak axial force of the nose gear and reduces the ones of the main gears.