공동현상이 발생하는 스퀴즈 필름 댐퍼에 지지된 탄성 회전체의 진동제어
Vibration Control of a Flexible Rotor Supported on Cavitated Squeeze Film Dampers
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The vibration control of a flexible rotor supported on cavitated short squeeze film dampers is investigated. According to Pan's theory, the shape of cavitation in fluid film bearings depends on the level of oil supply pressure, as a result, both the direct and the cross coupled damping coefficients of a cavitated short squeeze film damper are varied widely. In this paper, controling the level of oil supply pressure by fuzzy theory, a significant reduction in journal eccentricity ratio, rotor amplitude and force transmissiblilty of a flexible rotor system is achieved.
Abstract
The vibration control of a flexible rotor supported on cavitated short squeeze film dampers is investigated. According to Pan's theory, the shape of cavitation in fluid film bearings depends on the level of oil supply pressure, as a result, both the direct and the cross coupled damping coefficients of a cavitated short squeeze film damper are varied widely. In this paper, controling the level of oil supply pressure by fuzzy theory, a significant reduction in journal eccentricity ratio, rotor amplitude and force transmissiblilty of a flexible rotor system is achieved.
참고문헌 (9)
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- Pan, C. H. T, "An Improved Short Bearing Analysis for the Submerged Operation of Plain Journal Bearings and Squeeze Film Dampers", J. of Lubrication Technology, 102, pp.320~332 (1980)
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- Rabinowitz,M.D, "Steady State Performance of Squeeze Film Damper Supported Flexible Rotors", Journal of Engineering for Power, Trans. ASME, 99(4), pp.552~558 (1977)
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- 이상배, "퍼지-뉴로제어 시스템" (1999), 교학사