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dc.contributor.advisorHuang Min-Juien_US
dc.contributor.authorChung, Jung-Zenen_US
dc.description.abstract本論文提出,應用有限元素法及電子斑點干涉術作為分析測試之量測系統,將計算力學與實驗力學相結合,作一整合性之探討與分析,且以映像管作為應用實例,作一全域整合性探究。近三十年來隨著電子計算機的進步發展和廣泛使用,出現另一種數值方法---有限元素法(finite element),其方法主要為:將連續體的求解區域離散化為一組有限元素的組合體,使自連續體之無限自由度問題化為有限自由度問題。論文中將應用I-DEAS Master Series 6.0 套裝軟體,進行映像管管面應力之有限元素法分析。在光學方面,光與電子儀器的結合與運用,可說是電子斑點干涉術(ESPI)技術的最大特色,也是與全像干涉術的主要不同點。利用物體變形前後,相干光經物體表面漫反射後,在空間中干涉後所形成的光光斑場相關(correlation)的性質,再經由電腦作影像的相加或相減,而得到明暗相間的條紋。因此,將以此概念發展一套斑點與相機結合的量測系統,進而結合影像處理技術作一定量化的分析。zh_TW
dc.description.abstractThis essay proposed a newly developed analysis method using the electronic speckle pattern interferometry (ESPI) for glass bulb compressed with shrink band. The measurements of the in-plane deformation on the panel can be obtained for utilized to design a safer, lighter, and flatter CRT tube in future. It also proved to produce more reliable and more practical results than the previous method, like the discrete stain gage measurement of CRT. Further, an analysis method using the finite element method for glass bulb compressed with band is also studied in the essay. It was treated as a contact problem in the finite element analysis. Definitely this essay reaches using finite element method and electronic speckle pattern interferometry to analyze and to establish comparatively well a shrink band position. A suitable distribution of CRT panel stress is very important for the TV or monitor. Because the envelope is evacuated, (that is, there is a vacuum), there is a danger of a violent collapse, called an implosion, which scatters the glass dangerously. For getting an assurance of safety, picture tube must pass rigid implosion tests by Underwriters Laboratories (UL) to merit the UL seal. Recently, it is becoming more difficult to design a glass bulb because of the market demand for flatter face and lighter CRT. We utilized the FEM and the experimental techniques to analyze and to measure the stresses on the CRT panel induced by constrain of the shrink band for meeting the rigorous demand of our problem.en_US
dc.description.tableofcontents摘要 目錄 圖錄 表錄 第一章 緒論 1-1 研究動機 1-2 研究方向 1-3 論文大綱 第二章 ESPI與FEM的意義及相關理論 2-1 有限元素法簡介 2-2 一般的ESPI架設與理論 2-2-1 面內位移量測 2-2-2 面外位移量測 2-2-3 振動量測 第三章 影像系統 3-1 CCD取像器 3-2 ESPI取像設計 3-3 影像處理過程 3-3-1 影像作量化的程序 3-3-2 討論 第四章 映像管之有限元素法分析 4-1 有限元素法分析之基本原理及相當知識之建立 4-2 電腦輔助分析之基本架構與注意事項 4-3 映像管之應力、應變分析 4-3-1 抽真空後映像管之應力、應變分析 4-3-2 模擬防爆帶束縛後映像管之應力、應變分析 4-3-3 結果與討論 第五章 電子斑點干涉術應用於映像管之相關量測 5-1 ESPI量測原理 5-2 實驗進行步驟及實驗結果 5-2-1 實驗相關分類及製作 5-2-2 抽真空實驗部份 5-2-3 防爆帶實驗部份 5-2-4 實驗結果 5-3 討論 5-3-1 遭遇之困難及解決途徑 5-3-2 光路架設應注意事項 第六章 結論 參考文獻zh_TW
dc.subjectFinite Element (FEM)en_US
dc.subjectElectronic Speckle Pattern Interferometryen_US
dc.subjectANSYS Softwareen_US
dc.subjectI-DEAS Master Series 6.0 Softwareen_US
dc.subjectTechnique of Image Processingen_US
dc.typeThesis and Dissertationzh_TW
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
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