119 Investigation on Performance Improvement of Active Mass Damper for Multi-mode Vibration Control of Elastic Vibration of Railway Vehicle Carbody

2011 ◽  
Vol 2011 (0) ◽  
pp. _119-1_-_119-10_ ◽  
Author(s):  
Yuki AKIYAMA ◽  
Takahiro TOMIOKA ◽  
Tadao TAKIGAMI
Keyword(s):  
Vibration Control ◽  
Performance Improvement ◽  
Elastic Vibration ◽  
Railway Vehicle ◽  
Active Mass ◽  
Mass Damper ◽  
Active Mass Damper ◽  
Mode Vibration ◽  
Multi Mode

Theory and application of multi-mode vibration control systems

2012 ◽  
Vol 227 (1) ◽  
pp. 65-73
Author(s):  
Rujian Ma ◽  
Xiaobing Luo
Keyword(s):  
Vibration Control ◽  
Control Systems ◽  
Parameter Optimization ◽  
Degree Of Freedom ◽  
Optimal Parameters ◽  
Control Effect ◽  
Mass Damper ◽  
Mode Vibration ◽  
Multi Mode ◽  
Dynamic Magnification Factor

The theoretical analysis of vibration control of multiple-degree-of-freedom structures with multi-mode vibration control systems is presented in this article. A new method of parameter optimization of the multiple-tuned mass damper system was proposed in order to obtain the best control effect, where the minimum of the dynamic magnification factor is used as the optimal objective. The numerical examples of parameter optimization indicate that optimal parameters can be obtained for the multiple-degree-of-freedom system to get satisfactory control effects. The application of the theory is used for the vibration control simulation of an offshore platform. The results indicate that reasonable control effects can be obtained by controlling the first mode and the control effects increase about 10% in average when the first two modes are controlled simultaneously.

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