Research on Variable Structure and Adaptive Control for Strap-on Rocket

作     者：Xi Chen Yuxi Liu Yijun Wang 

作者机构：Aerospace System Engineering Shanghai Shanghai Academy of Spaceflight Technology Shanghai 201109 China 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2017年第24卷第2期

页      面：87-96页

学科分类：0810[工学-信息与通信工程] 08[工学] 081105[工学-导航、制导与控制] 0805[工学-材料科学与工程（可授工学、理学学位）] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：launch vehicle model reference variable structure control adaptive control 

摘      要：Considering the increase of structural disturbance caused by large thrust misalignment and lack of synchronism after installation of the solid booster on the rock,as well as the increase of external disturbance resulting from the installation of the configuration and tail,while also considering the parameter uncertainties,parameter perturbations,unmodeled dynamics and coupling between channels during modeling,this paper proposes the design method for the adaptive control of sliding mode variable structure,based on the model reference. The paper firstly establishes the attitude dynamics model for the solid strap-on launch vehicle; then proposes the design method for the adaptive control of the sliding mode variable structure based on the model reference,implements the design of attitude control system for the three channels respectively,and uses the Lyapunov function to prove the global asymptotic stability; and finally verifies,through numerical simulation,that the control method proposed in this paper can guarantee the attitude stability of rockets in the primary flight phase.