Abstract
A Stockbridge damper system can control the aeolian vibrations in a transmission line by dissipating excitation energy through the self-excitation of the damper system. Therefore, locating these resonant frequencies is a critical design consideration for a Stockbridge damper to determine the efficiency of spectral energy dissipation. In this study, the design strategy of a damper was investigated after conducting a design sensitivity analysis of the resonant frequency of a Stockbridge damper that considered several design parameters, including length of the messenger wire, inertia of the counterweight, and gyration radius of the counterweight. The formulation of the design sensitivity analysis was performed using partial derivatives of the eigenvalues with respect to each design parameter over two resonant frequencies. The sensitivity formulations were validated through a case study of eigenvalues that considered a variation of up to ±30 % in the values of the design parameters. The design guidelines for a Stockbridge damper were derived from the sensitivity analysis results.
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Recommended by Editor Yeon June Kang
Chan-Jung Kim received Ph.D. degree from Seoul National University in 2011. He was Senior Researcher at Korea Automotive Technology Institute over 12 years (2003-2015). Since 2015, he has been joined as the Faculty of Pukyong National University, where he is Assistant Professor of Mechanical Design Engineering. His research interests are in the area of the vibration fatigue, noise and vibration issue of mechanical systems.
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Kim, CJ. Design sensitivity analysis of a Stockbridge damper to control resonant frequencies. J Mech Sci Technol 31, 4145–4150 (2017). https://doi.org/10.1007/s12206-017-0810-0
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DOI: https://doi.org/10.1007/s12206-017-0810-0