Launch dynamics modeling and PID active control of a multiple launch rocket system

被引：0

作者：

Li B. ^{[1
]}

Rui X.-T. ^{[2
]}

Wang G.-P. ^{[2
]}

Zhang J.-S. ^{[2
]}

Zhou Q.-B. ^{[2
]}

机构：

[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing

[2] Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2020年 / 33卷 / 06期

关键词：

Launch dynamics; Multiple launch rocket system; PID control; Vibration control;

D O I：

10.16385/j.cnki.issn.1004-4523.2020.06.001

中图分类号：

学科分类号：

摘要：

During the shooting process of a multiple launch rocket system (MLRS), the collision of rockets and jet force cause a large amplitude vibration for the pitch and yaw angles. Such vibration may cause structural fatigue and reduce the service life. More importantly, if the vibration attenuation is slow, the pitch and yaw mechanisms have angular deviations at the time of each rocket's launch, causing a significant rocket dispersion. To deal with the above problem, an integrated nonlinear dynamics model of the launcher coupled with rockets is established. Based on this complex model, PID active control is studied. Then, the numerical simulation of the launch dynamics control for the MLRS is carried out. The results of uncontrolled and controlled simulations show that this active PID control of the launch dynamics effectively reduces the vibration and shooting deviation of the MLRS during shooting, and improves the firing dispersion. © 2020, Editorial Board of Journal of Vibration Engineering. All right reserved.

引用

页码：1103 / 1111

页数：8

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