Optimization Design and Performance of Vibration Suppression for Delayed Dynamical Vibration Absorber with Broadband

Abstract:

The delayed dynamical vibration absorber is applied to suppress the vibration of the torsional vibration system. The governing equations of the two degree of freedom vibrating system consisting of crankshaft and delayed dynamical vibration absorber are obtained. The physical parameters of the dynamical vibration absorber for the passive control system are optimum designed. The frequency of anti-resonant point is located at the midpoint between two resonant points, and the optimized amplitude frequency response curve is relatively flat near the anti-resonant point. The control parameters of gain and time delay are optimum designed in the active control system. The minimum amplitude of crankshaft is selected as the optimization objective. The genetic algorithm is used to optimize these control parameters. The optimized delayed dynamical vibration absorber has achieved good performance of vibration suppression within a wide frequency band of external excitation.

• Periodical: Applied Mechanics and Materials (Volume 610)
• Pages: 7-11
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.610.7
• Online since: August 2014
• Authors: Yan Ying Zhao*, Chan Gai Li
• Keywords: Dynamical Vibration Absorber, Genetic Algorithm (GA), Optimization Design, Time Delay, Vibration Suppression

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