Paper Title:
Precision Motion Control of a Smart Structure Using an Enhanced Stick-Slip Model
  Abstract

In this paper, a smart structure for the micro position control is proposed using the piezo stack actuator. The smart structure is comprised with PZT based stack actuator, mechanical displacement amplifier and positioning devices. Based on the bridge-type flexural hinge mechanism, a displacement amplifier is designed and integrated with a piezo stack actuator to produce a desirable positioning stroke of the device. In order to achieve the high precision control performance in a positioning device, a stick-slip phenomenon should be suppressed in contacting surfaces of the device, which is generally indispensable in the mechanically connected systems and particularly obvious for the micro-scale system. Therefore, the stick-slip model is enhanced by theoretically calculating the static friction based on the statistical rough surface contact model. Then, a PID feedback control algorithm with the developed stick-slip model is formulated for achieving accurate positioning of the device. Using the proposed smart structure, simulations of precise position control under the representative operating condition of positioning are conducted to demonstrate the stick-slip suppressing and micro positioning performance.

  Info
Periodical
Edited by
Pietro VINCENZINI and Fabio CASCIATI
Pages
98-103
DOI
10.4028/www.scientific.net/AST.56.98
Citation
M. G. Jang, C. H. Lee, S. B. Choi, "Precision Motion Control of a Smart Structure Using an Enhanced Stick-Slip Model", Advances in Science and Technology, Vol. 56, pp. 98-103, 2008
Online since
September 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yang Yong, Li Lin, Li Chao
Abstract:In this paper the mechanical structure and the operating principle of a fast steering mirror (FSM) are introduced, and a novel FSM based on...
2245
Authors: Shahab Amelian, Hamid R. Koofigar
Abstract:Piezoelectric materials are used in various applications as active vibration control, fault detection in structures and piezoelectric...
1237
Authors: Yan Hui Liu, Ping Tan, Fu Lin Zhou, Yong Feng Du, Wei Ming Yan
Abstract:Based on the configuration and mechanical characteristics of piezoelectric actuator, the bidirectional piezoelectric variable friction...
2977
Authors: Ji Jie Ma, Jian Ming Wen, Guang Ming Cheng, Ning Li, Yong Hua Jiang
Chapter 11: Micro-Machining Technology
Abstract:Based by controlling the orderly changes of friction force between the PZT rotary actuator and supporting faces in mechanical way, a novel...
2410
Authors: Xuan Wang, Valérie Budinger, Yves Gourinat
Chapter 1: Mechatronics, Automation and Information Technologies
Abstract:Piezoelectric actuators exhibit creep behavior in open-loop operation, which may lead to unaffordable errors in high precision static...
141