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FEM, BEM 해석을 이용한 청소기 모토의 소음/진동에 관한 연구
김동규,백종진,송재민,김민우,정동월,김형주 朝鮮大學校 機械技術硏究所 2006 機械技術硏究 Vol.9 No.1
The noise level of Vacuum Cleaner Motors is becoming more important to the manufacturer and the user of the product. Invariably, the motor is a significant contributor to the overall noise level. Especially a major portion of the noise radiated by the vibration of the motor cap. This paper presents an approach to relate the dynamic characteristics of the motor cap with the noise radiation properties and the methods of redesigning the motor cap to reduce the noise radiation. To relate the dynamic characteristics of the motor cap with the noise radiation properties, the vibration and radiated sound were measured with the running motor. Based on the results of these tests correlations between the motor cap vibration characteristics and the noise radiation properties are identified It was found that the vibration on the motor cap and the noise radiated from the Vacuum Cleaner Motors were strongly correlated in certain frequency bands.