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    題名: Stability analysis and vibration reduction for a two-dimensional nonlinear system
    作者: Wang, Yi-ren;Lin, Han-shiang
    貢獻者: 淡江大學航空太空工程學系
    關鍵詞: Vibration absorber;nonlinear vibration;flutter speed
    日期: 2013-06
    上傳時間: 2013-03-20 16:19:36 (UTC+8)
    出版者: Singapore: World Scientific Publishing
    摘要: This study examines how the vibration absorbers influence the stability of nonlinear flow-solid interaction systems. A novel approach is proposed for the analysis of dynamic stability of the two-dimensional nonlinear system using the internal resonance contour plot (IRCP) and flutter speed contour plot (FSCP). The system considered is a planar rigid-body with plunge and pitch vibrations. The two ends of the body are supported by cubic nonlinear springs with quadratic damping. The vibration absorber attached beneath is also considered as a rigid body, with the mass and position of the absorber adjusted for optimization of vibration reduction. The method of multiple scales (MOMS) is employed to obtain a fixed point solution. The P-method is also adopted to obtain the eigen plot and Poincaré Map for comparison. Finally, both the IRCP with FSCP are cross-referenced to provide guide-lines for identifying the optimal location for the absorber with regard to stability and vibration reduction without the need to alter the framework of the main body.
    關聯: International Journal of Structural Stability and Dynamics 13(5), pp.1350031(30pages)
    DOI: 10.1142/S0219455413500314
    顯示於類別:[航空太空工程學系暨研究所] 期刊論文

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