Development and testing of a discrete coil magnetostrictive actuator
Author(s): |
Yanwen Wang
Yuchuan Zhu Long Chen Jie Ling Mingming Zhang |
---|---|
Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 9 August 2024, n. 9, v. 33 |
Page(s): | 095001 |
DOI: | 10.1088/1361-665x/ad6382 |
Abstract: |
Active combustion control (ACC) technology is an effective measure for suppressing the combustion oscillation of aero-engines. The magnetostrictive actuator is the most suitable choice for the ACC actuator due to its excellent high-frequency characteristics and high-temperature resistance. In order for the magnetostrictive actuator to produce high-frequency displacement, the constant current driver must have sufficient power, which results in a larger mass of the driver. A solution is to use multi-channel and low-power constant current driver. Therefore, the coil of the magnetostrictive actuator is axially dispersed and driven by two four-channel servo amplifiers. The driver’s mass is significantly reduced while maintaining the same electromagnetic conversion effect. In addition, an analytical model of a discrete coil magnetostrictive actuator is established, and a series of experiments are conducted. The maximum hysteresis error of output displacement at 200 Hz is reduced by 15.2%. Furthermore, under PID closed-loop control, the root mean square (RMS) error is less than 2% when tracking a 10 Hz sinusoidal displacement with coil switching drive. |
- About this
data sheet - Reference-ID
10790677 - Published on:
01/09/2024 - Last updated on:
01/09/2024