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This article is cited in 1 scientific paper (total in 1 paper)
MECHANICS
Experimental research on the operating conditions of PZT stack actuator
A. V. Azin, S. V. Ponomarev, S. V. Rikkonen, A. M. Khramtsov Tomsk State University, Tomsk, Russian Federation
Abstract:
In the space industry, the problem of reducing mass-dimensional parameters of a spacecraft
(SC) system is especially urgent. One of the current solutions is the replacement of
electromechanical driving systems in different SC units by piezo drives, which enable a decrease
in mass-dimensional parameters by several fold.
The basic element of a piezo drive is a PZT stack actuator whose construction and operating
conditions determine the efficiency and service life of the oscillating system.
This work is aimed at experimental investigating the influence of the preload force of the PZT
stack actuator on frequency-response characteristics and energy parameters of the oscillating
system. The experimental studies were carried out on test stands which allow one to implement
physical modeling of oscillating systems with different types of loads. It is shown experimentally
that an increase in the preload force significantly changes the frequency characteristics. With in
increase in the preload, frequency characteristics of dynamic forces change, dynamic forces of
intermediate resonances decrease, and one main resonance is formed.
The results of the study have confirmed the calculation data: for the taken values of the load,
the resonant frequency of oscillating systems falls in the low-frequency region (up to 1 kHz); with
an increase in the preload, the dynamic force on the load increases, especially at low frequencies.
Keywords:
PZT stack actuator, spacecraft, oscillating system, dynamic force.
Received: 07.11.2016
Citation:
A. V. Azin, S. V. Ponomarev, S. V. Rikkonen, A. M. Khramtsov, “Experimental research on the operating conditions of PZT stack actuator”, Vestn. Tomsk. Gos. Univ. Mat. Mekh., 2017, no. 45, 60–68
Linking options:
https://www.mathnet.ru/eng/vtgu567 https://www.mathnet.ru/eng/vtgu/y2017/i45/p60
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Abstract page: | 180 | Full-text PDF : | 52 | References: | 31 |
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