研究生: |
陳志昇 CHIH-SHENG CHEN CHEN |
---|---|
論文名稱: |
人造颱風之模擬與台北測站風速之預測 Simulation of Typhoons and Prediction of Taipei Wind Speeds |
指導教授: |
陳瑞華
Rwey-Hua Cherng |
口試委員: |
鄭蘩
V. Jeng 黃慶東 C.T. Huang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2011 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 160 |
中文關鍵詞: | 人造颱風模型 、高斯過程模型 、設計風速 |
外文關鍵詞: | typhoon, gaussian process, design wind speed |
相關次數: | 點閱:202 下載:3 |
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在建築物生命週期裡,預測其可能遭遇的強風是一項很重要的工作。若要求得長回歸週期的設計風速,直接利用所量測的短年份風速資料進行統計分析並不夠準確。因此本研究先進行人造颱風的模擬,隨後根據人造颱風參數,利用高斯過程模型進行台北測站風速的預測。本研究的人造颱風模型與高斯過程模型都是根據觀測資料所建立的機率模型。本論文的人造颱風模型共分生成模型、侵台前傳遞模型、侵台時期氣壓傳遞模型以及侵台後氣壓傳遞模型。高斯過程模型主要依照颱風侵台路徑進行分類。根據人造颱風模型我們可以發現過去歷史上不同月份的颱風特性以及不同區域的變化情形;而根據高斯過程模型的超參數大小,我們可以了解到不同路徑的颱風參數對於台北測站風速的影響度。人造颱風模型與高斯過程模型的準確性經過驗證後,可預測台北測站未來長時間的風速,並且求出各風向的設計風速。
One of the most critical tasks in evaluating structural performance is determination of possible strong wind in the structural lifetime. However, the estimation of occurrence frequency and intensity for strong wind events is a challenging research topic, especially for typhoon or hurricane prone region. Direct statistical analyses of observed wind speeds are not accurate enough for predicting long-return-period design wind speeds or for assessing wind-induced risk; therefor, a typhoon simulation based wind hazard analysis is developed. The study first simulates artificial typhoons and then predicts Taipei wind speeds and directions based on simulated typhoon parameters
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