变刚度电动负载力矩模拟系统的刚度解算  

The Stiffness Calculating of the Variable Stiffness Electric Loading Simulator

作　　者：冀哲 姚晓先[1] 梁作宝[1] JI Zhe;YAO Xiaoxian;LIANG Zuobao(School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学宇航学院,北京100081

出　　处：《弹箭与制导学报》2017年第5期30-34,共5页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：针对导弹半实物仿真闭环试验中,需要解决实时对舵机加载的问题,文中提出了一种变刚度加载方式。通过实时调整扭杆弹簧的加载长度实现变刚度加载,并给出了适用于此加载系统的刚度解算方案。由对地面风洞实验数据解算及插值,得到任意飞行状态下的负载刚度及等效攻角,作为变刚度加载系统的输入参数。并以某型号舵机的风洞实验数据,通过该方法进行刚度解算,所得到的实际加载力矩与加载力矩指令较为接近,证明了该解算方案的合理性。This paper adopts the loading torque simulator with variable stiffness to test the performance of rudders in a missile＇ s Hardware- in-the-Loop Simulation （HILS）. The variable stiffness loading is achieved by adjusting the loading length of the torsion bar spring in real time, and a solving method for variable stiffness is given. Based on the experimental data obtained from the wind tunnel test through calcu- lation and interpolation, the load stiffness and the equivalent angle of attack are obtained in any flying state as the input parameters of the variable stiffness loading system. With a certain type of rudder＇ s wind tunnel test data, using this solving method to calculate stiffness, the obtained actual load torque and load torque command is approximate, thereby testing the feasibility of the proposed method.

关 键 词：变刚度加载 加载力矩 等效攻角 负载刚度 刚度解算 

分 类 号：V2[航空宇航科学技术]