飞机拦阻钩碰撞动力学和拦阻钩纵向阻尼器性能

 在考虑舰载机降落平台纵摇和横摇的基础上，建立了飞机拦阻钩六自由度碰撞反弹模型，得到了拦阻钩接触道面后反弹的动力学性能。分析了航母纵摇和横摇下拦阻钩碰撞反弹成因，并分别考虑了纵摇角和横摇角对拦阻钩反弹角速度及机身与道面给予拦阻钩碰撞冲量的影响；研究了拦阻钩碰撞后的反弹位移，在考虑拦阻索能顺利上钩的前提下，分析了拦阻钩纵向阻尼器的缓冲阻尼特性。结果表明：因航母横摇，碰撞后拦阻钩出现了左右的反转角速度及碰撞冲量；拦阻钩反弹后在自身重力作用下不能使拦阻索顺利上钩，在加入纵向阻尼器情况下，拦阻钩第1次反弹高度及回落时间均满足拦阻索上钩的条件。

Dynamics of Bounce of Aircraft Arresting Hook Impacting with Deck and Performance of Arresting Hook Longitudinal Damper

Taking into consideration the pitch and roll of a carrier aircraft landing platform, a six-degree impac-ting model of an aircraft arresting hook is established and the bounce dynamic performance of the hook after touchdown is obtained. The impacting dynamic explanations of the hook with pitch and roll of the carrier are studied, and the bounce angle velocity and impulse of collision by the aircraft and deck affected by the pitch and roll angles of the carrier are explored. The displacement of the hook after impacting with the deck is studied. In order to engages the arresting cable, the buffering and damping performance of the hook longitudinal damp-er is also analyzed. The results show that the angle velocity and impulse of collision of a hook in the horizontal plane is nonzero, and the hook cannot engage the cable after impacting with the deck by gravitation. However, with the addition of a hook longitudinal damper, the hook bounce height and the time of the hook returning to the initial position for the first time can both satisfy the engagement conditions of the arresting hook.