서지주요정보
가공 및 조립오차가 능동 자기베어링으로 지지된 축의 성능에 미치는 영향 = The influence of the machining and assembling errors on the performance of the shaft supported by active magnetic bearings
서명 / 저자 가공 및 조립오차가 능동 자기베어링으로 지지된 축의 성능에 미치는 영향 = The influence of the machining and assembling errors on the performance of the shaft supported by active magnetic bearings / 김대곤.
저자명 김대곤 ; Kim, Dae-Gon
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009159

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 98043

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Active magnetic bearing system consists of sensors, controllers, power amplifiers, and electromagnets. If all the elements are ideal, the position of the shaft can be controlled up to the sensor resolution. Because each element in real system has mechanical and electrical losses and nonlinearities, it is impossible to attain the desired performance. So far in order to obtain the desired performance of the active magnetic bearing system, an additional controller or filter has been used in conventional control algorithm. Other factors that may affect the shaft behavior are the machining errors due to the machine work and the assembling errors due to the accumulated machining errors or asymmetric screw down. The purpose of this study is to model the machining and assembling errors in the 5-axis controlled active magnetic bearings and to show the influence of the machining and assembling errors on the performance of the shaft supported by active magnetic bearings. In view of the results the roundness error of the radial sensor target and the perpendicularity error of the thrust rotor have considerable influence on the rotational precision of the shaft. However machining errors of the radial rotor and the thrust rotor have been little influence on the rotational precision. Assembling errors of the radial stators and thrust stators also have little influence on the rotational precision of the shaft. But when the magnitude of the assembling errors increases over a certain limit, the bearing can not support the shaft properly.

서지기타정보

서지기타정보
청구기호 {DME 98043
형태사항 xvi, 107 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dae-Gon Kim
지도교수의 한글표기 : 김경웅
지도교수의 영문표기 : Kyung-Woong Kim
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 99-107
주제 능동 자기베어링
가공오차
조립오차
진원도오차
원통도오차
직각도오차
동축도오차
평행도오차
Active magnetic bearing
Machining error
Assembling error
Roundness error
Cylindricity error
Perpendicularity error
Coaxiality error
Parallelity error
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