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- 松田 敏
- 関西大学環境都市工学部建築学科
書誌事項
- タイトル別名
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- REPRESNTATION OF NON-STATIONARY INPUT GROUND MOTION MODEL BASED ON SHORT-TIME FOURIER TRANSFORM AND RANDOM RESPONSE ANALYSIS OF ELASTIC SDOF SYSTEM
抄録
<p>This study proposes a new representation method of an input ground motion model as a non-stationary stochastic process based on the short-time Fourier transform (STFT). The inverse STFT of the product of a deterministic amplitude function concerning time and frequency and the Fourier transform of a Gaussian white noise gives the input ground motion model. This definition implements the ground motion model as an evolutionary process and delivers the expression of the non-stationary power spectral density function. The sample waveform functions generated numerically from the stochastic model keep expected well-designed characteristics. Furthermore, a method of random response analysis of an elastic SDOF system excited by the input ground motion model is carried out and used to estimate its maximum response. Some numerical simulations demonstrate the effectiveness and accuracy of the proposed method.</p>
収録刊行物
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- 構造工学論文集B
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構造工学論文集B 70B (0), 26-31, 2024
一般社団法人 日本建築学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390862699741981824
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- ISSN
- 24366285
- 09108033
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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
- 使用可