Publisher : The Korean Society for Noise and Vibration Engineering
DOI : 10.5050/KSNVE.2015.25.10.707
Title & Authors
Control Performance Investigation of Piezoelectric Actuators under Variation of External Heat Environment Han, Young-Min; Moon, Byung Koo; Choi, Seung-Bok;
This paper proposes experimental results for control performance deterioration of a piezoelectric actuator under high temperature conditions due to external heat environment. In this work, a heat environment from 30 ℃ to 190 ℃ is established by a heat chamber which is capable of high temperature of heat environment. Inside the heat chamber, an experimental apparatus consisting of the stack type of piezoelectric actuator, laser sensor, gap sensor and temperature sensor is established. After evaluating temperature dependent blocking force, displacement and time response of a piezoelectric actuator inside the heat chamber, tracking control performances are evaluated under various temperature conditions via proportional-integral-derivative(PID) feedback controller. The desired position trajectory has a sinusoidal wave form with a fixed frequency. Control performances are experimentally evaluated at both room temperature and high temperature and presented in time domain.
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