서지주요정보
링크 및 차체 위 진동신호를 이용한 주행 차량의 서스펜션 연결부 부싱에서의 전달력 규명에 관한 연구 = A study on indirect identification of transmission forces through rubber bushing in vehicle suspension system under driving condition by using vibration signals measured on link and car body
서명 / 저자 링크 및 차체 위 진동신호를 이용한 주행 차량의 서스펜션 연결부 부싱에서의 전달력 규명에 관한 연구 = A study on indirect identification of transmission forces through rubber bushing in vehicle suspension system under driving condition by using vibration signals measured on link and car body / 채창국.
발행사항 [대전 : 한국과학기술원, 2001].
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소장정보

등록번호

8012254

소장위치/청구기호

학술문화관(문화관) 보존서고

DME 01032

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

리뷰정보

초록정보

Both ride comfort and noise level inside the cabin are critical factors in assessment of quality of a passenger car and are gaining increasing importance in chassis development. The customer preferences toward the ride comfort, which rise consistently, are mainly responsible for this. Many researches have been done and are still going on to resolve the noise and vibration problem at the initial design stage. In practice, however, a great portion of the ride comfort and noise problems of a car is improved at the final tuning work that is performed mainly on the suspension system underneath the car body. One difficulty with the current tuning technique is that it is very time consuming due to the great dependence on subjective assessment in finding primary reasons of the noise and vibration problems. Various motions or vibrations of a car body suspended from ground are originated by the operational forces transmitted onto the car body through bushing attachments, which should be very closely correlated to the ride comfort and the noise level inside the cabin. Hence, identification of distributional characteristics over the car body of the operational transmission forces through such resilient elements could provide objective reference materials for improvement of the ride quality and greatly reduce the trial and errors in the final tuning stage dealing with noise and vibration problems. Since direct measurement of the operational transmission forces by installing custom-made force sensors at the bushing joints in the three principal directions is extremely difficult and cost ineffective, a technique of using rubber bushing itself as a sensor is employed in this research for the identification of transmission forces. The method starts from an idea that the transmission forces can be related to deformation of the rubber bushing multiplied by complex stiffness of the bushing. The deformation of the rubber bushing can be obtained by estimating relative accelerations across the bushing from the absolute vibration signals measured at various points of the rigid link and the car body connected to the bushing and by double integrating the relative accelerations. The identification of operational forces generated mainly due to the motions of a unsprung mass and the bushing properties in the frequency range over 5 to 200 Hz were the object of this paper. Several useful results are shown by applying the proposed method to a rear suspension system of a passenger car under driving conditions. Some problems and solutions are analyzed by focusing on the possible improvements and the limitations in the force estimation.

서지기타정보

서지기타정보
청구기호 {DME 01032
형태사항 xii, 112 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chang-Kook Chae
지도교수의 한글표기 : 김광준
지도교수의 영문표기 : Kwang-Joon Kim
수록잡지명 : "A feasibility study on indirect identification of transmission forces through rubber bushing in vehicle suspension system by using vibration signals measured on links". Vehicle system dynamics, v.33 no.5, pp. 327 - 349 (2000)
수록잡지명 : "Identification of forces transmitted onto car body through rubber bushings in suspension system under driving conditions". SAE transactions-journal of passenger cars, v.108 no.6, pp. 1439-1447 (1999)
학위논문 학위논문(박사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 107-112
주제 전달력
부싱
승차감
진동신호
transmission force
bushing
ride quality
vibration signal
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