Research on active-passive hybrid vibration control using negative capacitance branch circuits

In this paper, an active-passive hybrid method using negative capacitance branch circuits is used to suppress structural vibration. When a negative capacitance is connected to a shunt circuit of a piezoelectric element, it can increase the electromechanical coupling coefficient of the system and con...

Full description

Saved in:
Bibliographic Details
Main Authors: Xiao-lu Ma, Jin-hao Qiu, Hong-li Ji, Kong-jun Zhu, Ru-shou Liu, Sheng-quan Li
Format: Conference Proceeding
Language:English
Subjects:
active-passive hybrid control
Aircraft
Capacitance
Chromium
Circuits
Control engineering education
Control systems
electro-mechanical coupling coefficient
Laboratories
Negative capacitance
Vibration control
Virtual colonoscopy
Voltage control
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, an active-passive hybrid method using negative capacitance branch circuits is used to suppress structural vibration. When a negative capacitance is connected to a shunt circuit of a piezoelectric element, it can increase the electromechanical coupling coefficient of the system and consequently improve the damping effect of the passive control as well as raise active control voltage. The system model is established and its characteristics such as the dependence of the vibration amplitude on the negative capacitance are investigated. Experimentations are carried. Experimental results show that this method is able to suppress structural vibration effectively and has better control effect than the individual active control or passive control method.
DOI:10.1109/SPAWDA.2009.5428896