Modal testing of rotating machinery using magnetic exciter equipped with hall sensors = 홀센서 내장형 전자석 가진기를 이용한 회전 기계 모드 시험

Unlike stationary structures, rotating machinery has unique features due to the rotation so that the conventional modal testing methods often fail in clear explanation of the dynamic characteristics of such machines. To identify the modal parameters of rotating machinery, the complex modal testing has been developed. However, the complex modal testing methods are based on complex inputs and outputs, new excitation and measurement techniques are required. The objective of this work is the development of an effective complex modal testing system for rotating machines using a newly developed magnetic exciter equipped with hall sensors. Hall sensor is used to measure the excitation force instead of force transducer. The on-line software for complex modal testing is also developed for fast processing of direction spectrum. Finally, the excitation and measurement techniques developed for asymmetric rotors are experimentally verified for practicality and realization. The experimental results suggest that the one exciter-two sensor method is most effective.
Advisors
Lee, Chong-Wonresearcher이종원researcher
Publisher
한국과학기술원
Issue Date
2000
Identifier
158206/325007 / 000983108
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학전공, 2000.2, [ vii, 60 p. ]

Keywords

Complex modal tesing; Directional frequency response functions; Magnetic exciter equipped with hall sensors; 홀센서 내장형 전자석 가진기; 복소모드시험; 방향성주파수응답함수

URI
http://hdl.handle.net/10203/45136
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=158206&flag=t
Appears in Collection
ME-Theses_Master(석사논문)
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