一度故障模式下推力矢量控制系统定位精度研究  

Research on the Precision of Thrust Vector Control System under Onetime Failure

作　　者：刘春庆[1] 史晨虹[1] 李永宏 李东东 武佳乐 LIU Chunqing;SHI Chenhong;LI Yonghong;LI Dongdong;WU Jiale(Beijing Institute of Precision Mechatronics and Controls, Beijing 100076, China;CERI Long Product Co.,Ltd.,Beijing 100076, China)

机构地区：[1]北京精密机电控制设备研究所,北京100076 [2]中冶京诚瑞信长材有限公司,北京100076

出　　处：《机械与电子》2020年第4期11-15,共5页Machinery & Electronics

摘　　要：以某型运载火箭前支点柔性喷管位置伺服系统为研究对象,分析了喷管全轴摆动条件下俯仰、偏航通道作动器的运动牵连问题。结合工程经验,介绍了推力矢量控制系统的解耦控制及位置反解、正解算法求解方案,分析了运动求解算法的工程实现方案。在此基础上,探讨在伺服电机极性反向的一度故障模式下,通过优化调整系统位置反解、正解运动控制算法,解决系统的运动学解耦和运动精度控制问题。试验结果表明,优化算法后的推力矢量控制系统具有良好的喷管姿态角控制精度,保证了产品的研制配套周期,具有较高的工程应用意义和参考价值。This research focuses on the flexible nozzle position servo system of the front fulcrum of a certain type of launch vehicle,and analyzes the motion implication of pitch and yaw channel actuators under the condition of the nozzle’s full axis swing.Combined with engineering experience,the decoupling control of the thrust vector control system and the system’s inverse and forward kinematics solution were introduced,furthermore,the engineering implementation of the motion solution algorithm was analyzed.Based on this,in the onetime failure mode of the reverse polarity of the servo motor,the kinematics decoupling and motion accuracy control of the system were solved by optimizing the system’s inverse and forward kinematics solution.Test results show that the optimized TVC system has good nozzle attitude angle control accuracy,which guarantees the product development supporting cycle,and has high engineering application significance and reference value.

关 键 词：一度故障 推力矢量控制系统 位置反解算法 位置正解算法 

分 类 号：TH133.2[机械工程—机械制造及自动化] TJ765.2[兵器科学与技术—武器系统与运用工程]