書誌事項
- タイトル別名
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- Performance Evaluation of Motorized Variable Stiffness Vertical Seismic Isolator
抄録
<p>In recent years, various seismic isolation devices have been developed to prevent damage from earthquakes. In this study, we focused on vertical seismic isolation and proposed a vertical seismic isolation device with three link-crank mechanisms arranged in a star shape. In this seismic isolation device, a motor is used to change the spring anchorage conditions, adjusting the rigidity characteristics of the device and allowing the resonance point to be manipulated. We took advantage of this feature to achieve resonance avoidance to escape from the resonance state. As a result of making common adjustments to all link and crank mechanisms, we were able to avoid resonance by reducing acceleration by 30% from before resonance avoidance, but it took approximately 20 seconds of motor operation to suppress transient vibration generated by the change in equilibrium position during avoidance. By adjusting the linkage and crank mechanism to prevent transient vibration, we were able to shorten the motor operation to 0.3 seconds.</p>
収録刊行物
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- Dynamics & Design Conference
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Dynamics & Design Conference 2023 (0), 210-, 2023
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390017843891200256
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- ISSN
- 24242993
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可