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Development and testing of a discrete coil magnetostrictive actuator

Author(s):
ORCID
ORCID
ORCID

Medium: journal article
Language(s): English
Published in: Smart Materials and Structures, , 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.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1088/1361-665x/ad6382.
  • About this
    data sheet
  • Reference-ID
    10790677
  • Published on:
    01/09/2024
  • Last updated on:
    01/09/2024
 
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