서지주요정보
가속도계를 이용한 가솔린 기관의 피스톤-링 결합체와 실린더 간의 마찰력 측정 = Measurements of friction between piston-ring assembly and cylinder of a SI engine using an accelerometer
서명 / 저자 가속도계를 이용한 가솔린 기관의 피스톤-링 결합체와 실린더 간의 마찰력 측정 = Measurements of friction between piston-ring assembly and cylinder of a SI engine using an accelerometer / 이동원.
저자명 이동원 ; Lee, Dong-Won
발행사항 [대전 : 한국과학기술원, 1990].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8000727

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 9040

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Friction between a piston-ring assembly and a cylinder of a spark ignition engine was evaluated under the various operating conditions from the momentum-force balance relation at the piston-ring assembly. Gas pressure inside the cylinder, inertia force of the piston-ring assembly, and the force exerted by the connecting rod were measured by using a pressure transducer, an accelerometer and strain gauges respectively. Advantages, limitations, and reliability in using this method were also discussed. Comparisons were made with the frictional force evaluated by the conventional method where the assumption of constant rotational speed of engines was adopted. Due to the variation of rotational speed of engines, the conventional method lead to a large error in evaluation of the frictional force. At low engine speed, reasonably accurate results can also be obtained by measuring the angular acceleration of the crank shaft using a photo sensor instead of using an accelerometer; however, at high engine speed, measure-ments with an accelerometer provided more reliable results since these take account of the local vibration mode of the piston-ring assembly.

서지기타정보

서지기타정보
청구기호 {MME 9040
형태사항 [iii], 42 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dong-Won Lee
지도교수의 한글표기 : 이상용
지도교수의 영문표기 : Sang-Yong Lee
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 19-20
주제 Friction.
Piston rings.
Tribology.
Interal combustion engines, spark ignition.
가속도계. --과학기술용어시소러스
마찰력. --과학기술용어시소러스
피스톤 링. --과학기술용어시소러스
가솔린 기관. --과학기술용어시소러스
불꽃 점화 기관. --과학기술용어시소러스
Accelerometers.
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