504 Self-Powered Active Vibration Control for Repulsive Magnetic Levitation System

2006 ◽  
Vol 2006 (0) ◽  
pp. _504-1_-_504-4_
Author(s):  
Shigeyuki NAKADAI ◽  
Masafumi MORITA
Keyword(s):  
Vibration Control ◽  
Magnetic Levitation ◽  
Active Vibration Control ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
Active Vibration ◽  
Self Powered

The Design and Application of Piezoelectric Friction Damper with Self-Powered and Sensing Control System

2010 ◽  
Vol 163-167 ◽  
pp. 2477-2481
Author(s):  
Na Xin Dai ◽  
Ping Tan ◽  
Fu Lin Zhou
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Active Control ◽  
Mechanical Energy ◽  
Active Vibration Control ◽  
Friction Damper ◽  
Active Vibration ◽  
Self Powered ◽  
Control Equation ◽  
Converse Piezoelectric Effect

To make the active and semi-active vibration control system in civil engineering get rid of external power supply, a new piezoelectric friction damper with self-power and sensing is designed in this paper and a semi-active control system based on this damper is presented. This system includes three key parts: a piezoelectric friction damper, a power generator based on the piezoelectric stack electro-mechanical energy conversion and a control circuit. It makes full use of the direct and converse piezoelectric effect. At the same time, it also overcomes the deficiency that the frictional force as damping can not be accurately desired in semi-active vibration control system. On the basis of it, the control equation of PFD is formulated. Numerical simulations for seismic protection of story isolation equipped with this system excited by a historical earthquake are conducted by MATLAB. Skyhook control is used to command a piezoelectric friction damper in the semi-active control. It is noticed that only one accelerometer is needed to monitor the response to realize the skyhook control, which greatly simplifies the classical semi-active vibration control system.

Self-Powered Active Vibration Control With Continuous Control Input: Application to a Cab Suspension of a Heavy Duty Truck

1999 ◽  
Author(s):  
Kimihiko Nakano ◽  
Yoshihiro Suda ◽  
Shigeyuki Nakadai
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Active Vibration Control ◽  
The Self ◽  
Vibration Energy ◽  
Heavy Duty ◽  
Heavy Duty Truck ◽  
Active Vibration ◽  
Self Powered ◽  
Isolation Performance

Abstract Active vibration control using regenerated vibration energy, i.e., self-powered active control, is proposed. In the self-powered active control system, vibration energy is regenerated by an electric generator, which is called an energy regenerative damper, and is stored in the condenser. An actuator achieves active vibration control using the energy stored in the condenser. The variable-value resistance whose value can be controlled by a computer is utilized to control output force of the actuator. The authors examine the performance of the self-powered active vibration control on experiments and propose to apply this system to cab suspensions of a heavy duty truck. Through experiments, it is shown that the self-powered active vibration control system has better isolation performance than a semi-active and a passive control system. Numerical simulations demonstrate better isolation performance of the self-powered active vibration control in cab suspensions of a heavy duty truck.

scholarly journals Micro-Vibration Control by Active Magnetic Levitation System.

2002 ◽  
Vol 68 (669) ◽  
pp. 1405-1413 ◽  
Author(s):  
Katsuhide WATANABE ◽  
Yoichi KANEMITSU ◽  
Shinji HARA ◽  
Takahide HAGA
Keyword(s):  
Vibration Control ◽  
Magnetic Levitation ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
Micro Vibration

scholarly journals Self-Powered Active Vibration Control Using Continuous Control Input.

2000 ◽  
Vol 43 (3) ◽  
pp. 726-731 ◽  
Author(s):  
Kimihiko NAKANO ◽  
Yoshihiro SUDA ◽  
Shigeyuki NAKADAI
Keyword(s):  
Vibration Control ◽  
Active Vibration Control ◽  
Control Input ◽  
Continuous Control ◽  
Active Vibration ◽  
Self Powered
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