프레임 형상 변경을 통한 버스 구동용 모터의 소음저감Reducing Noise from Bus Drive Motor by Changing Frame Shape
- Other Titles
- Reducing Noise from Bus Drive Motor by Changing Frame Shape
- Authors
- 윤이훈; 고민재; 장우재; 윤신; 권성민; 박병섭; 나병수; 정진태
- Issue Date
- Apr-2024
- Publisher
- 한국소음진동공학회
- Keywords
- EV Bus Drive Motor; Interior Permanent Magnet Synchronous Motor; Motor Nois; Structure-born Noise; Noise Reduction; 전기 버스 구동용 모터; 매입형 영구자석 동기 전동기; 모터 소음; 구조기인소음; 소음저감
- Citation
- 한국소음진동공학회논문집, v.34, no.2, pp 173 - 179
- Pages
- 7
- Indexed
- KCI
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 34
- Number
- 2
- Start Page
- 173
- End Page
- 179
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118906
- DOI
- 10.5050/KSNVE.2024.34.2.173
- ISSN
- 1598-2785
2287-5476
- Abstract
- This study identified the noise generation mechanism of a bus drive motor and proposed a design guideline for the motor frame to reduce this noise. By measuring the noise and vibration signals, it was found that the noise was amplified at a specific rotational speed, and a frequency analysis was performed to identify the cause. This analysis confirmed that the vibration of the housing and rear bracket generated by the electromagnetic force in the motor was related to the noise generation. Then, modal testing was performed to obtain the mode shapes and natural frequencies of the housing and rear bracket equal to the noise amplification frequencies. In the mode shapes of the housing, pumping and bending deformations of the lateral surface were observed, while radial asymmetric deformation appeared on the rear bracket. Therefore, ribs were added to the housing and rear bracket to suppress these deformations. Finally, the noise level of the improved motor was measured, which confirmed a reduction of up to 10.7dB(A) compared to the original motor.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118906)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.