Design of an ultra-precision vibration isolation system by imitating the special organic texture of woodpecker's brain

2005 ◽  
Author(s):  
Mei De-qing ◽  
Yang Ke-ji ◽  
Chen Zi-chen
Keyword(s):  
Vibration Isolation ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Ultra Precision

Optimal Design and Simulation of Active Vibration Isolation Platform Based on Fuzzy Control

2010 ◽  
Vol 44-47 ◽  
pp. 4176-4180
Author(s):  
Yi Zhang ◽  
Min Min Xia ◽  
Jin Yi Qin ◽  
Zi Fan Fang
Keyword(s):  
Fuzzy Control ◽  
Vibration Isolation ◽  
Structural Parameters ◽  
Parametric Model ◽  
Parameters Optimization ◽  
Isolation System ◽  
Vibration Isolation System ◽  
Ultra Precision ◽  
Active Vibration ◽  
Active Vibration Isolation

In order to improve the isolation effect of ultra-precision vibration isolation platform, an approach of advancing structural parameters optimization for the system based on fuzzy control is presented. This paper created a platform parametric model In ADAMS / view; completed the structural optimization under circumstances of taking the acceleration of vibration isolation platform, the system dynamic deflection and the dynamic displacement of the base as performance objective function; and applied the method of co-simulation using ADAMS and MATLAB under fuzzy control. The simulation results show that the active vibration isolation system optimized by ADAMS could effectively enhance the effect of active vibration isolation platform; the method of co-simulation provided a new way for dynamics studies of vibration isolation system.

Research on a Bionic Fuzzy-PID Vibration Control System for Ultra-Precision Device

2005 ◽  
Vol 297-300 ◽  
pp. 2333-2338
Author(s):  
Zhe He Yao ◽  
K.J. Yang
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Vibration Isolation ◽  
Active Vibration Control ◽  
Fuzzy Pid ◽  
Isolation System ◽  
Disturbing Force ◽  
Vibration Isolation System ◽  
Ultra Precision ◽  
Precision Device

By imitating the vibration isolation mechanism and special organic texture of woodpecker’s brain, a bionics mechanics-based structure model is constructed for the vibration isolation system of ultra-precision device. In consideration of compound vibration environment and non-linearity of the ultra-precision device, a fuzzy-PID (PID stands for Proportional, Integral and Derivative.) active vibration control system is developed, its operation is that fuzzy control is adopted while the error is big and PID control is adopted while the error is small. The performance of the vibration control system is validated by numerical simulation. The simulation results show that the bionic vibration control system has good performance against floor disturbances and direct disturbing force. It can be applied to the vibration isolation system of the ultra-precision measuring and manufacturing device.

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