서지주요정보
승용차용 완충기 기인 소음에 대한 실험 연구 = An experimental study on shock absorber originated structure-borne noise of a passenger car
서명 / 저자 승용차용 완충기 기인 소음에 대한 실험 연구 = An experimental study on shock absorber originated structure-borne noise of a passenger car / 오경.
저자명 오경 ; Oh, Kyoung
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8011683

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 01038

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A shock absorber reduces vibration but at the same time it is a noise source. Structure-borne noise originated from a shock absorber considerably contributes to the car interior noise. In this paper, an experimental study on a real passenger vehicle was explored to analyze its noise and also presents a method to assess the quality of shock absorbers. Based on the source-path-receiver model of the passenger car, the frequency response functions between the strut mount position and driver’s right ear position were measured. The structure-borne sound pressures originated from shock absorbers were evaluated using the transfer path analysis and those evaluated levels were compared with the measured sound pressures. The dominant frequency ranges mainly originated from shock absorbers were identified. It was very interesting that the dominant frequencies in the measured acceleration signals from the shock absorber strut mount were very close to those from sound pressure measurements. Therefore, the acceleration can be a substitute for the structure-borne noise analysis due to shock absorber. According to the performance test with abnormal shock absorbers, it was found that both the sound pressure and the strut mount acceleration show high level of peaks at same frequency ranges above the normal criterion frequency. The experimental procedure and results on this work is applicable to establish a bench test on a real car and clarify the abnormality of shock absorbers.

서지기타정보

서지기타정보
청구기호 {MME 01038
형태사항 v, 69 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kyoung Oh
지도교수의 한글표기 : 박윤식
지도교수의 영문표기 : Youn-Sik Park
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 68-69
주제 완충기
구조 기인 소음
승용차
쇽 업소바
shock absorber
structure-borne noise
passenger car
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