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NEUMAN, J. NOVÁČEK, Z. PAVERA, M. ZLÁMAL, J. KALOUSEK, R. SPOUSTA, J. DITTRICHOVÁ, L. ŠIKOLA, T.
Original Title
Experimental optimization of power-function-shaped drive pulse for stick-slip piezo actuators
Type
journal article in Web of Science
Language
English
Original Abstract
Motion of a stick-slip piezo actuator is generally controlled by the parameters related to its mechanical design and characteristics of the driving pulses applied to piezoceramic shear plates. The goal of the proposed optimization method is to find the driving pulse parameters leading to the fastest and the most reliable actuator operation. In the paper the method is tested on a rotary stick-slip piezo actuating system utilized in an atomic force microscope. The optimization is based on the measurement of the actuator response to driving pulses of different shapes and repetition frequencies at various load forces. To provide it, a computer controlled testing system generating the driving pulses, and detecting and recording the corresponding angular motion response of the actuator by a position sensitive photo detector (PSPD) in real time has been developed. To better understand and interpret the experimental results, supportive methods based on a simple analytical model and numerical simulations were used as well. In this way the shapes of the single driving pulses and values of the load force providing the biggest actuator steps were determined. Generally, the maximal steps were achieved for such a combination of the pulse shapes and load forces providing high velocities at the end of the sticking mode of the actuator motion and, at the same time, lower decelerations during the slipping mode. As for the multiple driving pulses, the pulse shapes and values of repetition frequency ensuring the sticking mode of the actuator motion during the pulse rise time together with the maximum average angular rotor velocity were specified. In this way the effective and stable operation conditions of the actuator were provided. In principle, the presented method can be applied for the testing and optimization of any linear or angular stick-slip actuator.
Keywords
Stick-slip drive; Piezoelectric actuator; Motion optimization; Motion simulation
Authors
NEUMAN, J.; NOVÁČEK, Z.; PAVERA, M.; ZLÁMAL, J.; KALOUSEK, R.; SPOUSTA, J.; DITTRICHOVÁ, L.; ŠIKOLA, T.
RIV year
2015
Released
1. 10. 2015
ISBN
0141-6359
Periodical
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
Year of study
42
Number
1
State
United States of America
Pages from
187
Pages to
194
Pages count
13
BibTex
@article{BUT114482, author="Jan {Neuman} and Zdeněk {Nováček} and Michal {Pavera} and Jakub {Zlámal} and Radek {Kalousek} and Jiří {Spousta} and Libuše {Dittrichová} and Tomáš {Šikola}", title="Experimental optimization of power-function-shaped drive pulse for stick-slip piezo actuators", journal="PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY", year="2015", volume="42", number="1", pages="187--194", doi="10.1016/j.precisioneng.2015.04.016", issn="0141-6359" }