Dynamic Responses and Fuzzy Control of a Simply-Supported Beam Subjected to a Moving Mass

Yong-Sik Kong; Bong-Jo Ryu; Kwang-Bok Shin; Gyu-Seop Lee; Hong-Gi Lee

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자료유형: 학술저널

저자정보: Yong-Sik Kong Bong-Jo Ryu Kwang-Bok Shin Gyu-Seop Lee Hong-Gi Lee

저널정보: 대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.20 No.9

발행연도: 2006.9

수록면: 1,371 - 1,381 (11page)

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This paper deals with the active vibration control of a simply-supported beam traversed by a moving mass using fuzzy control. Governing equations for dynamic responses of a beam under a moving mass are derived by Galerkin's mode summation method, and the effect of forces (gravity force, Coliolis force, inertia force caused by the slope of the beam, transverse inertia force of the beam) due to the moving mass on the dynamic response of a beam is discussed. For the active control of dynamic deflection and vibration of a beam under the moving mass, the controller based on fuzzy logic is used and the experiments are conducted by VCM (voice coil motor) actuator to suppress the vibration of a beam. Through the numerical and experimental studies, the following conclusions were obtained. With increasing mass ratio γ at a fixed velocity of the moving mass under the critical velocity, the position of moving mass at the maximum dynamic deflection moves to the right end of the beam. With increasing velocity of the moving mass at a fixed mass ratio γ, the position of moving mass at the maximum dynamic deflection moves to the right end of the beam too. The numerical predictions of dynamic deflection of the beam have a good agreement with the experimental results. With the fuzzy control, more than 50% reductions of dynamic deflection and residual vibration of the tested beam under the moving mass are obtained.

#Dynamic Responses #Fuzzy Control #Moving Mass #Simply-Supported Beam #Voice Coil Motor

참고문헌 (26)

참고문헌 신청

Abdel-Rohman, M. and Leipholz, H. H. E., 1980, Automatic Active Control of Structures, North-Holland Publishing Co. & Sm Publications.

Ayre, R. S., Ford, G. and Jacopsen, L. S., 1950, "Transverse Vibration of a Two Span Beam under Action of Moving Constant Force," Transactions of the ASME, Journal of Applied Mechanics, Vol.17, pp.1~2.

Bailey, T. and Hubbard Jr., J. E., 1985, "Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam," Journal of Guidance, Control, and Dynamics, Vol.8, No.5, pp.605~611.

Esmailzadeh, E. and Ghorashi, M., 1992, "Vibration Analysis of Beams Traversed by Moving Masses," Proceedings of the International Conference on Engineering Application of Mechanics, Tehran, Iran, Vol.2, pp.232~238.

Kwak, M. K. and Sciulli, D., 1996, "Fuzzy Logic Based Vibration Suppression Control Experiments on Active Structures," Journal of Sound and Vibration, Vol.191, No.1, pp.15~28.

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