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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 韓仁毓 | |
dc.contributor.author | Shiang-Ling Lin | en |
dc.contributor.author | 林湘玲 | zh_TW |
dc.date.accessioned | 2021-06-15T04:12:02Z | - |
dc.date.available | 2011-02-04 | |
dc.date.copyright | 2010-02-04 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-01-25 | |
dc.identifier.citation | Altamimi, Z., Sillard, P., and Boucher, C. (2002) ITRF2000: A New Release of the International Terrestrial Reference Frame for Earth science applications. J. Geophys. Res., 107(B10), ETG2/1-19.
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45277 | - |
dc.description.abstract | 變形分析的主要工作在於透過點位坐標觀測量的變化,歸納出物體各點位的相對運動行為。然而各點位間坐標值變動的原因,除了受到真實變形的影響,亦有可能是受到因物體本身的剛體運動、或來自坐標參考框架變異所產生的被動運動等因素所造成,因此如何消除這些與之無關的位移訊號以獲取正確變形成果,是為變形監測工作的關鍵步驟之一。本文首先將透過數值模擬方式,探討在剛體及被動運動的影響下,利用不變函數法進行變形參數估計的適用性,接著將不變函數應用於實際的物體變形分析,考量物體外部特性資訊對應變成果之影響,建立適當的約制方程式,最後設計一套嚴謹的估計分析方法,以有效的解決由上述因素所造成的變形參數估計偏差問題,進而提高變形分析工作成果的可靠度。 | zh_TW |
dc.description.abstract | The main objective of deformation analysis is to determine relative motions between points through observing the variation of coordinates of these points. However, a rigid-body motion and a passive motion caused by reference frame variations may also result in coordinate changes. Therefore, a key issue of defoemation analysis is to find the correct deformation results by eliminating those unrelated displacement signals. Firstly, the invariant function approach was tested on its feasibilities for deformation analysis under the effects of rigid-body motion and passive motion by using numerical examples. After that, in order to apply invariant function on the deformation analysis of real objects, we constructed the suitable constraint equations by considering the effect of deformation parameter estimations of external information. Finally, we designed a rigorous method to reduce estimation biases for improving the quality and reliability of deformation analysis task. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T04:12:02Z (GMT). No. of bitstreams: 1 ntu-99-R96521110-1.pdf: 1688557 bytes, checksum: 430af723331a82a882fd469322c0a81b (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 摘要 I
目錄 II 圖目錄 IV 表目錄 VI 第一章 緒論 1 1-1 研究背景 1 1-2 研究動機與目的 2 1-3 應變分析相關研究 2 1-3-1 地球物理方面之應用 3 1-3-2 土木工程方面之應用 3 1-3-3 變形監測方面之應用 4 1-4 研究方法與流程 5 1-5 論文架構 7 第二章 附有約制條件的虛擬觀測平差模型 8 2-1 廣義平差模型(GENERAL LEAST-SQUARES ADJUSTMENT MODEL) 8 2-2 附有約制條件之虛擬觀測平差(UNIFIED LEAST-SQUARES ADJUSTMENT MODEL WITH CONSTRAIN) 10 第三章 應變分析之不變函數模型 13 3-1 不變函數的涵義 13 3-2 均質材料應變分析方法 14 3-2-1 基本應變張量模型 14 3-2-2 坐標框架變異之影響 15 3-3 均質應變分析之不變函數模型 17 3-4 附有約制條件的應變參數求解 19 3-4-1 材料之變形特性參數 19 3-4-2 卜瓦松比(Poisson’s ratio) 21 3-4-3 可壓縮材料的體積應變量 22 3-4-4 以體積應變量建立之約制條件式 23 3-4-5 應變參數估計 27 3-5 統計考量與精度評估 29 3-5-1 統計考量 29 3-5-2 精度評估方法 31 第四章 數值分析與實例應用 35 4-1 數值模擬測試 35 4-2 實例應用與分析 42 4-2-1 實例應用一:光達點雲之整合分析 42 4-2-1-1 實驗配置說明 42 4-2-1-2 基本應變分析方法與不變函數法的變形張量元素估計及比較 45 4-2-2 實例應用二:工程材料之應變分析 46 4-2-2-1 實際資料來源與配置 46 4-2-2-2 材料的均質特性測試一:不同點位資料數量對應變參數估計之影響 48 4-2-2-3 材料的均質特性測試二:物體各局部區域的應變估計誤差來源之測試 51 4-2-2-4 測試三:實際約制參數精度對參數估計與外部物理變化誤差率的影響 54 4-3 結果分析 56 第五章 結論與建議 58 5-1 結論 58 5-2 建議 59 參考文獻 61 附錄 63 A.1. 附有約制條件之虛擬觀測平差模型(UNIFIED LEAST-SQUARES ADJUSTMENT MODEL WITH CONSTRAINT) 63 B.1. 考量不同材料特性之變形參數估計成果 64 B.1.1. 不可壓縮材料的簡化約制、嚴謹約制與無約制的參數估計 64 B.1.2. 可壓縮材料的簡化約制、嚴謹約制與無約制的參數估計 66 B.2. 三維雷射掃描儀(TRIMBLE GS200)的簡要規格 67 | |
dc.language.iso | zh-TW | |
dc.title | 應用不變函數與虛擬觀測平差法於均質應變分析 | zh_TW |
dc.title | Using Invariant Functions and Unified least-Squares Approach in a Homogeneous Strain Analysis | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-1 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 趙鍵哲,翁孟嘉 | |
dc.subject.keyword | 變形分析,剛體運動,被動運動,坐標框架變異,不變函數, | zh_TW |
dc.subject.keyword | Deformation Analysis,Rigid-body Motion,Passive Motion,Reference Frame Variation,Invariant Function, | en |
dc.relation.page | 67 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-01-26 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
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