%0 Journal Article
%T MK7-3拦阻器刚柔耦合动力学建模与分析<br>Rigid-flexible Coupled Modeling and Dynamic Analysis of MK7 MOD 3 Arresting Gear System
%A 刘成玉
%A 王斌团
%J 机械科学与技术
%D 2016
%X 结合MK7-3拦阻系统结构特点和工作原理，建立了完整包含拦阻液压缓冲器、滑轮组系统和拦阻索在内的刚柔耦合拦阻系统动力学仿真分析模型。模型采用三维索单元模型模拟拦阻索在高速冲击作用下的弯折波现象，采用非线性弹簧阻尼单元模拟液压缓冲器的输出载荷，采用刚性体模拟动滑轮和定滑轮。数值仿真分析结果表明，本文建立的拦阻系统动力学模型能够很好的描述拦阻索在拦阻初始阶段产生的弯折波，舰载机着舰滑跑数据的计算结果与实验结果吻合。<br>The MK 7 MOD 3 Arresting Gear has the largest arresting energy among all of the arresting gears of the world; it has operated in the fleet for decades and provides the reliability and safety that is demanded of Aircraft Carrier Operations. The purpose of this paper is to establish detailed numerical dynamic model of the MK 7 MOD 3 Arresting Gear which comprised of hydraulic buffer system, pulley block system and arresting cables. The 3D flexible cable elements are used to build the dynamic model of the arresting cable. The 3D flexible cable elements can describe shape of the bending wave of the arresting cable under serious instantaneous impact. The fluid force of the hydraulic buffer system is described by nonlinear spring-damping element. Except the arresting cable, all of the pulleys and movable parts are modeled by rigid body objects. Validation of the model built in this paper is demonstrated by numerical example. Simulation results show that bending wave shape of the arresting cable can be described precisely. Landing response of the aircraft obtained by using the model presented in this paper matches well with the test data
%K 拦阻器
%K 着舰动力学
%K 拦阻
%K 冲击
%K 刚柔耦合&lt
%K br&gt
%K arresting gear system
%K landing dynamics
%K arresting
%K impact
%K rigid-flexible coupling
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6527.shtml