动平台飞行器发射动力学及适配器影响研究  

Research on launch dynamics of moving platform aircraft and influence of adaptor on launch dynamics

作　　者：周晓和[1] 刘伟[1] 张家骏[1] 宋逸博 李月洁 Zhou Xiaohe;Liu Wei;Zhang Jiajun;Song Yibo;Li Yuejie(China Academy of Launch Vehicle Technology,Beijing 100076)

机构地区：[1]中国运载火箭技术研究院,北京100076

出　　处：《战术导弹技术》2023年第4期119-125,共7页Tactical Missile Technology

摘　　要：高海况条件下进行飞行器发射时,平台的剧烈摇摆会严重影响飞行器载荷状态和运动状态,增加飞行器发射失败的风险,亟需深入研究平台高海况摇摆作用下飞行器的运动特性。创新性地建立了以发射筒坐标系为参考坐标系的飞行器三自由度发射动力学模型,极大地简化了对飞行器运动状态的描述,并以三自由度动力学模型为基础,进一步研究了适配器刚度特性和阻尼特性对飞行器载荷和转动角度的影响。结果表明,飞行器发射过程中不同适配器的载荷差异显著,且在一定范围内适配器的刚度和非线性特性对飞行器载荷和运动状态有显著影响。研究结果可为动平台飞行器载荷设计和适配器设计提供参考。When the aircraft is launched under high sea conditions,the platform's sway will make a serious influence on the aircraft's load and motion,which will increase the risk of launch failure.Therefore,it is necessary to further study the launch dynamics under high sea conditions.Taking the launch tube coordinate system as the reference coordinate system and considering the influence of platform's lateral sway on aircraft motion,a 3D freedom launch dynamic model of aircraft is established.At the same time,the influence of the stiffness and damping characteristics of the adapter on the cross section load and rotation angle of the aircraft has been further studied.The results show that the load of different adapters has obvious differences in the process of aircraft launch,and the stiffness and nonlinear characteristics of the adapter have a significant influence on the aircraft load and motion state,which can give a reference for structural load design and adaptor design of aircraft.

关 键 词：高海况摇摆 动平台飞行器 发射动力学 数学模型 适配器 非线性刚度 阻尼 

分 类 号：TG768[金属学及工艺—刀具与模具]