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傾斜した振動系に対する二振子(ボール)動吸振器の開発
https://doi.org/10.24517/00057115
https://doi.org/10.24517/0005711579724305-7cf8-47c6-bda8-5a92d2608bbd
名前 / ファイル | ライセンス | アクション |
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TE-PR-SATO-H-kaken 2005-2p.pdf (108.7 kB)
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Item type | 報告書 / Research Paper(1) | |||||
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公開日 | 2022-05-19 | |||||
タイトル | ||||||
タイトル | 傾斜した振動系に対する二振子(ボール)動吸振器の開発 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | A study on dynamic absorber with two pendulums(balls) mounted on tilted vibrating system | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
ID登録 | ||||||
ID登録 | 10.24517/00057115 | |||||
ID登録タイプ | JaLC | |||||
著者 |
佐藤, 秀紀
× 佐藤, 秀紀 |
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著者別表示 |
Sato, Hidenori
× Sato, Hidenori |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学工学部 | |||||
書誌情報 |
平成15(2003)年度 科学研究費補助金 基盤研究(C) 研究成果報告書概要 en : 2003 Fiscal Year Final Research Report Summary 巻 2002-2003, p. 2p., 発行日 2005-04-18 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 上下方向(重力方向)と水平方向の二方向の振動に対して,それぞれ有効な振り子式動吸振器(上下方向はパラメトリック型,水平方向は共振型)を併用することにより,任意方向の振動に対して有効な制振作用を及ぼす簡便な動吸振器を開発することを目的として,系の解析と実験を行った.振り子の代わりにローラ(ボール)を用いた形式めものについても,解析と実験を行った.得られた結果は以下の通りである. (1)傾斜1自由度振動系が傾斜方向に変位加振を受ける場合に対し,二振子動吸振器を取り付けた系の非線形運動方程式を求めた. (2)周波数応答曲線を低振幅で抑制する最適減衰比を求める手法を提案し,傾き角度を変えた場合について数値計算により最適減衰比とその応答特性を求め,二振子動吸振器の有効性を明らかにした.さらに,実験を行い,数値計算結果との比較から実験的にもその有効性を確認した. (3)ローラを用いた動吸振器を持つ傾斜振動系について,ローラのすべりを考慮した系の運動方程式を導出した.数値計算と実験を行った結果,概略振り子系と似た吸振特性を持つことが明らかになり,動吸振器としての有効性を確認した.なお,最適減衰を実験的に与えることは困難であり今後の課題となった.ただし,コンパクトな構造が可能であることから加振振動数が変動しない場合は簡便で有効な動吸振器であるといえる. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | On developing a dynamic absorber consisting of two pendulums (vertical : parametrically excited, horizontal : resonated) which is effective for vibration of a structure in both vertical and horizontal directions, analytical and experimental studies are performed. The system where the two pendulums are replaced by balls (rollers) is also investigated. In this study the following results are obtained. 1)Nonlinear equation of motion is developed for the tilted single DOF system subjected to excitation in tilted direction. 2)A scheme for obtaining the optimum damping ratio is suggested where overall frequency response of the system can be minimized. The optimum damping ratio and corresponding frequency response is calculated numerically for several tilted angle, and the results show that proposed dual pendulum-type dynamic absorber is effective for vibration control. Moreover, the experimental investigation shows good correspondence with numerical tests. 3)Equation of motion for the tilted vibration system with roller-type dynamic absorber is developed, where the slip between roller and guide is considered, Both numerical and experimental tests show that the roller type absorber represents similar damping effect as the pendulum system. Investigating performance of roller type damper with optimal damping remains to be tested due to the difficulty in placing damping mechanism for the roller motion experimentally, however, the compactness of the suggested system provides compact implementation and good performance at fixed frequency excitation. |
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内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 研究課題/領域番号:14550213, 研究期間(年度):2002-2003 | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 出典:研究課題「傾斜した振動系に対する二振子(ボール)動吸振器の開発」課題番号14550213 (KAKEN:科学研究費助成事業データベース(国立情報学研究所)) (https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-14550213/145502132003kenkyu_seika_hokoku_gaiyo/)を加工して作成 |
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著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/search/?qm=90019745 | |||||
関連名称 | https://kaken.nii.ac.jp/search/?qm=90019745 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550213/ | |||||
関連名称 | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550213/ | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-14550213/145502132003kenkyu_seika_hokoku_gaiyo/ | |||||
関連名称 | https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-14550213/145502132003kenkyu_seika_hokoku_gaiyo/ |