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Control of Missile Hydraulic Erection System Based on Incremental Nonlinear Dynamic Inversion

  • MA Jiahua , 1 ,
  • WANG Jinyuan 1 ,
  • YAO Zhikai 1, 2 ,
  • DENG Wenxiang 1 ,
  • YAO Jianyong 1 ,
  • ZHOU Zhengshou 3 ,
  • ZHOU Zhonghua 4 ,
  • HA Liang 4 ,
  • ZHU Weilin , 1
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  • 1 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
  • 2 College of Automation & College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu, China
  • 3 Jiangsu Hengli Hydraulic Co., Ltd., Changzhou 213164, Jiangsu, China
  • 4 Jiangsu Hengli Hydraulic Technology Co., Ltd., Changzhou 213164, Jiangsu, China

Received date: 2025-03-06

  Online published: 2025-05-15

Abstract

To address the practical challenges of nonlinear dynamic modeling in missile hydraulic erection systems, as well as the presence of mechanical and hydraulic dynamic uncertainties, this study proposes an incremental nonlinear dynamic inversion (INDI) control method. The proposed approach reduces the reliance on complex nonlinear hydraulic models, offers strong robustness, and enables a concise and efficient controller design with a clear structure. First, a dynamic model of the valve-controlled cylinder-driven system is established, and a virtual control law for the hydraulic channel is constructed using the backstepping method. Then, a first-order Taylor expansion is applied to decouple the nonlinear hydraulic dynamics, based on which an INDI controller is designed to track the virtual control law and achieve accurate missile erection trajectory tracking. The stability of the closed-loop system is proven using the Lyapunov theory. Comparative simulations provide further evidence supporting the effectiveness of the proposed controller.

Cite this article

MA Jiahua , WANG Jinyuan , YAO Zhikai , DENG Wenxiang , YAO Jianyong , ZHOU Zhengshou , ZHOU Zhonghua , HA Liang , ZHU Weilin . Control of Missile Hydraulic Erection System Based on Incremental Nonlinear Dynamic Inversion[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(2) : 193 -198 . DOI: 10.15892/j.cnki.djzdxb.2025.02.009

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