서지주요정보
유도전동기의 소음과 진동 저감을 위한 프레임의 형상 최적설계 = Shape optimal design of frame of an induction motor for noise and vibration reduction
서명 / 저자 유도전동기의 소음과 진동 저감을 위한 프레임의 형상 최적설계 = Shape optimal design of frame of an induction motor for noise and vibration reduction / 한정삼.
저자명 한정삼 ; Han, Jeong-Sam
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007672

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 97092

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

This paper describes a shape optimization formulation to design the frame system of an induction motor to reduce noise and vibration. The natural frequency most sensitive to acoustic noise of the motor is found to correspond to an oval mode and chosen as the objective function to be maximized. Another objective function, surface vibration level(S.V.L) in terms of an integrated value of the square of vibration velocity of the outer surface of the frame and the cooling fins is also considered to be minimized. The electromagnetic forces by the theory of magnetic field was considered as input loads. A variational approach which uses the material derivative concept of the continuum mechanics and domain methods is taken for derivation of shape design sensitivity. It is numerically implemented by postprocessing analysis data of ABAQUS finite element code to get the design sensitivity information of natural frequency of the structure and S.V.L in steady state. The results have been in good agreement, in most cases, as compared with those by finite differencing. Two sets of design variables describing the shape are studied. The first is a set of 9 outer radii of frame for circumferential stiffening. As the second group of design variables, the heights of cooling fins and stiffeners are considered. A 5-hp, 4-pole and 3-phase induction motor was studied. As results of this study, the oval mode frequency of the motor was increased by 100Hz and the S.V.L corresponding to the exciting frequency of 1320Hz could be decreased by 30\% using either of the two design variable sets. It is shown that the natural frequency near the exciting frequency has been lowered in this case. Information on the spectrums of both natural and exciting frequencies is important for a practical design decision.

서지기타정보

서지기타정보
청구기호 {MME 97092
형태사항 x, 97 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, 형상 설계 민감도 해석. - B, 변형률의 전미분식. - C, 요소 선택에 대한 고찰
저자명의 영문표기 : Jeong-Sam Han
지도교수의 한글표기 : 곽병만
지도교수의 영문표기 : Byung-Man Kwak
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 30-32
주제 유도전동기
소음
진동
설계 민감도 해석
형상 최적설계
Induction motor
Noise
Vibration
Design sensitivity analysis
Shape optimization
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