서지주요정보
자기 유변 유체를 이용한 스퀴즈 필름 댐퍼의 해석 및 개발 = Analysis and development of squeeze film damper using magneto-rheological fluids
서명 / 저자 자기 유변 유체를 이용한 스퀴즈 필름 댐퍼의 해석 및 개발 = Analysis and development of squeeze film damper using magneto-rheological fluids / 김근주.
저자명 김근주 ; Kim, Keun-Joo
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009488

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 99005

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The modern rotating machinery has a tendency of high operating speed, high load capacity and light weight. Thus it is becoming increasingly important that a rotating machine can have a capability of changing its dynamic characteristics so that the excessive vibrations, occurring particularly when passing through critical speeds or unstable speed regions, can be avoided. In this work, a squeeze film damper (SFD) using magneto-rheological fluid (MRF), which is known to behave as a Bingham fluid, is tested to check the ability of changing its dynamic properties such as damping and stiffness. It requires to solve the Reynolds equation for Bingham fluid and then to calculate the pressure distribution of MR SFD. Magnetic circuit analysis is also performed to avoid the magnetic saturation of MR SFD and to determine the feasible design parameters. Numerical simulations are extensively carried out to investigate the effects of design parameters, sealing and applied magnetic field on the dynamic properties of MR SFD. Finally, the simulation results are compared with experimental ones. It is found that the proposed MR SFD has the capability of changing its dynamic characteristics, following the general trend of the simulation results, but the analysis model needs further improvements for accurate prediction of experimental results.

서지기타정보

서지기타정보
청구기호 {MME 99005
형태사항 ix, 96 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 윤활방정식을 이용한 해석적인 압력분포해의 도출
저자명의 영문표기 : Keun-Joo Kim
지도교수의 한글표기 : 이종원
지도교수의 영문표기 : Chong-Won Lee
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 41-42
주제 동특성
스퀴즈 필름 댐퍼
자기 유변 유체
자기 유변 스퀴즈 필름 댐퍼
Dynamic characteristics
Squeeze film damper
MR fluids
MR SFD
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