Optimal design of tuned mass dampers with variable inerter and damping

Chang Ching Chang, Jer Fu Wang, Chi Chang Lin, Tzu Ting Lin, Chih Shiuan Lin

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Conventional tuned mass damper (TMD) is a popular and generally accepted vibration control device in the field of passive structural control. However, it was found that the control efficacy of a conventional TMD may significantly degrade when the TMD's frequency does not tune to its desired value. In addition, the vibration energy of controlled structure transferred into the TMD is dissipated by viscous or friction damper and becomes waste heat. In this paper, a new type of TMD, called electromagnetic TMD inerter (EM-TMDI) is developed by replacing the viscous dampers with electromagnetic rotary transducers so that a more flexible viscous damping can be achieved and part of the energy originally dissipated by the dampers could be harvested. A flywheel with variable mass moment of inertia will be introduced into the transmission system of the TMD to adjust TMD's frequency to mitigate the frequency detuning effect and to enhance the control efficacy of TMD system. The theoretical derivation is performed to generate the relationship between the DC motor and the transmission system of the EM-TMDI. Optimal design method considering the inerter of rotary transducers will be developed. This study first designed and manufactured a scale-down, double-deck EM-TMDI. A series of shaking table tests were conducted at NCREE Tainan laboratory to verify the capability of inerter to change TMD's frequency.

原文???core.languages.en_GB???
主出版物標題Seismic Engineering
發行者American Society of Mechanical Engineers (ASME)
ISBN(電子)9780791859018
DOIs
出版狀態已出版 - 2019
事件ASME 2019 Pressure Vessels and Piping Conference, PVP 2019 - San Antonio, United States
持續時間: 14 7月 201919 7月 2019

出版系列

名字American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
8
ISSN(列印)0277-027X

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???event.eventtypes.event.conference???ASME 2019 Pressure Vessels and Piping Conference, PVP 2019
國家/地區United States
城市San Antonio
期間14/07/1919/07/19

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