Multi-mode vibration damping device and method using negative capacitance shunt circuits

2005 ◽  
Vol 118 (2) ◽  
pp. 591 ◽  
Author(s):  
Chul-hue Park
Keyword(s):  
Vibration Damping ◽  
Negative Capacitance ◽  
Mode Vibration ◽  
Multi Mode

Low-frequency multi-mode vibration suppression of a metastructure beam with two-stage high-static-low-dynamic stiffness oscillators

2019 ◽  
Vol 230 (12) ◽  
pp. 4341-4356 ◽  
Author(s):  
Qichen Wu ◽  
Gangting Huang ◽  
Chong Liu ◽  
Shilin Xie ◽  
Minglong Xu
Keyword(s):  
Vibration Suppression ◽  
Dynamic Stiffness ◽  
Low Frequency ◽  
Two Stage ◽  
Mode Vibration ◽  
Multi Mode

A Multi-Mode Vibration-Based Power Generator for Vehicles

2012 ◽  
Vol 251 ◽  
pp. 124-128
Author(s):  
Seiji Hashimoto ◽  
Nobuyuki Nagai ◽  
Yoshimitsu Fujikura ◽  
Jyunpei Takahashi ◽  
Shunji Kumagai ◽  
...  
Keyword(s):  
Power Generation ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Experimental Results ◽  
Power Generator ◽  
Effective Power ◽  
New Device ◽  
Mode Vibration ◽  
Power Generation Device ◽  
Multi Mode

This paper presents a novel vibration power generation device for vehicles where effective power generation can be obtained by multi-mode vibration of the vehicles. First, road tests of the vehicle are performed, and then the obtained data is analyzed. Next, a vibration power generation device specially designed for the vehicle is proposed. This new device is composed of the multiple masses and spring plates equipped with lead zirconate titanate (PZT), and is effective in multi-mode vibration. The validity of the developed device is confirmed by the simulation and experimental results.

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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