Moving mass control for underwater vehicles

2002 ◽  
Author(s):  
C.A. Woolsey ◽  
N.E. Leonard
Keyword(s):  
Underwater Vehicles ◽  
Moving Mass ◽  
Moving Mass Control

Novel Moving Mass Flight Vehicle and Its Equivalent Experiment

2018 ◽  
Vol 140 (11) ◽  
Author(s):  
Jianqing Li ◽  
Changsheng Gao ◽  
Tianming Feng ◽  
Wuxing Jing
Keyword(s):  
Controller Design ◽  
Adaptive Controller ◽  
Target System ◽  
Experimental Setup ◽  
Moving Mass ◽  
The Novel ◽  
Flight Vehicle ◽  
Inertia Moment ◽  
Control Authority ◽  
Moving Mass Control

This paper presents a novel configuration of flight vehicle with moving mass control. We focus on the development of the proposed control mechanism and investigate the feasibility of an equivalent experimental setup. First, the effect of the moving mass parameters on the control authority is investigated. Then, a control law based on immersion and invariance (I&I) theory is presented for the moving mass control system. In the design process, we select a first-order target system to reduce the difficulty of controller design. To deal with the coupling caused by the additional inertia moment, which is generated by the motion of the moving mass, the extended state observer (ESO) is designed. The proposed adaptive controller is simulated and tested on the experimental setup. Finally, the simulation results validate the quality of the proposed adaptive controller, which ensures a good performance in the novel configuration with internal moving mass.

A new moving mass control method for fluid structure interaction problems

2021 ◽  
Vol 33 (12) ◽  
pp. 123102
Author(s):  
Yi Zhang ◽  
Shuyue Wang ◽  
Hao Zhang ◽  
Gang Sun
Keyword(s):  
Control Method ◽  
Fluid Structure Interaction ◽  
Moving Mass ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Moving Mass Control

scholarly journals Stability of Moving Mass Control Spinning Missiles with Angular Rate Loops

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Qiushi Zheng ◽  
Zhiming Zhou
Keyword(s):  
High Speed ◽  
Control Method ◽  
Necessary Conditions ◽  
Angular Rate ◽  
Moving Mass ◽  
Control Field ◽  
Control Gain ◽  
Sufficient And Necessary Conditions ◽  
Moving Mass Control ◽  
The Mathematical Model

Moving mass control (MMC) is a new control method in control field. It is a potential way to solve the problem of aerodynamic rudder control insufficiency caused by the low density of upper atmosphere, to reduce the high speed missile aerodynamic thermal load, and to solve the problem of rudder surface ablation. However, the spinning of the airframe and the movement of internal moving mass induce the serious dynamic cross-coupling between pitch and yaw channels, which may lead to system instability in the form of a divergent coning motion. In this paper, the mathematical model of the MMC missile is established, and the angular motion equation is finally obtained by some linearized assumptions. Then, the sufficient and necessary conditions of coning motion stability for MMC missiles with angular rate loops under fast and slow spinning rates are analytically derived and further verified by numerical simulations. It is noticed that the upper bound of the control gain is affected by the location of the moving mass and the spinning rate of the missile.

Sign in / Sign up

Export Citation Format

Share Document