scholarly journals Vibration Control for Two Kinds of Flexible Mechanical Systems With Full State Output Constraints

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 120734-120743
Author(s):  
Zhiqiang Lin ◽  
Shimin Lin ◽  
Meihua Huang ◽  
Jianing Zhang ◽  
Zhongwei Liang
Keyword(s):  
Vibration Control ◽  
Mechanical Systems ◽  
Output Constraints ◽  
Full State

Control of Vibration Flow at the Joint of an L-Shaped Frame

2007 ◽  
Author(s):  
C. Mei
Keyword(s):  
Vibration Control ◽  
Control Strategy ◽  
Mechanical Systems ◽  
Structural Elements ◽  
Structural Components ◽  
Structural Element ◽  
Shaped Beam ◽  
Structural Joint ◽  
Structural Joints ◽  
Vibration Problems

There has been an increasing interest in vibration control in recent years. This is due to demands for mechanical structures to be lighter and faster. Lighter and faster structures are more prone to vibrations. Hence, there is an imperative need for practical solutions to vibration problems in complex practical mechanical systems. Regardless of the complexity of a structure, from wave vibration standpoint, it consists of only two basic types of structural components, namely, structural elements and structural joints. In this paper, a control strategy is developed for controlling vibrations flowing from one structural element to another through the structural joint. An L-shaped beam is studied as an example structure. Numerical results are given.

Vibration control for a flexible satellite system with output constraints

2016 ◽  
Vol 85 (4) ◽  
pp. 2673-2686 ◽  
Author(s):  
Tingting Meng ◽  
Wei He ◽  
Hong Yang ◽  
Jin-Kun Liu ◽  
Wei You
Keyword(s):  
Vibration Control ◽  
Satellite System ◽  
Output Constraints

Modal Analysis and Active Vibration Control of a Cable-Net Reflector

2016 ◽  
Vol 829 ◽  
pp. 137-143 ◽  
Author(s):  
Yong Sheng Wu ◽  
Wei Zhong Zhang ◽  
Xiu Yun Meng
Keyword(s):  
Vibration Control ◽  
Modal Analysis ◽  
Active Vibration Control ◽  
Element Model ◽  
Space Representation ◽  
State Space Representation ◽  
Full State ◽  
Full State Feedback ◽  
Active Vibration ◽  
Active Control Strategy

A cable-net reflector is fist introduced and then the state space representation is derived based on the finite element model. Modal analysis is carried out for the purpose of vibration control in modal space. The first several natural frequencies and vibration modes are obtained to analyze the vibration characteristics. The optimal control theory based on LQR with full state feedback is used for the control problem. Numerical simulations of the impulse disturbance response and the frequency response are implemented. Also, the contrast between the uncontrolled and controlled cases is illustrated. The theoretical results confirm the effectiveness of the proposed active control strategy for the vibration suppress of the cable-net reflector.

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