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振動数依存性を有する関数の時間領域変換法の適用性検討
A Study on Applicability of Time Domain Transform Methods for Frequency Dependent Functions |
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| 梗 概 |
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著者はこれまで，振動数依存性を示す動的剛性の時間領域変換法について検討し提案を行ってきた。本報では既往の検討結果に基づき，以下を行った。まず，変換法の概要を示し，これまで変換した代表的な関数を3種類に分類し，各々の特徴を検討した。また，既往の検討が剛性の変換に限定されていたことから，より一般的な関数への適用性を調べるため，動的柔性や伝達関数の変換を検討した。さらに，時間領域伝達関数を提案し，その適用性を確認した。
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| キーワード：振動数依存性，時間領域，インパルス応答, 時刻歴応答解析，時間領域伝達関数 |
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| Summary |
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The author has studied and proposed transform methods of frequency dependent dynamic stiffness into time domain functions. In this paper, the outline of the proposed methods was described, first. Then, typical functions transformed in the previous papers were classified into 3 groups, and these characteristics were studied. The previous studies were limited only for the dynamic stiffness. The transform of dynamic flexibility functions and transfer functions were studied to confirm the applicability of the method for more general functions. Moreover, the time domain transfer functions were proposed and the applicability was confirmed.
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| Keywords: frequency dependency, time domain, impulse response, time history response analysis, time domain transfer function |
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技術研究所 主任研究員 博士（工学） Chief Researcher, Research & Development Institute, Dr. Eng. |
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