研究生: |
蔡旻峻 Tsai, Min-Chun |
---|---|
論文名稱: |
搭配薄膜節流器軸頸式液靜壓線性滑軌之性能分析 Analysis of Hydrostatic Linear Journal Guide With Membrane Restrictor |
指導教授: |
林士傑
Lin, Shih-Chieh |
口試委員: |
蕭德瑛
Shaw, De-In 曹哲之 Tsao, Che-Chih |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 動力機械工程學系 Department of Power Mechanical Engineering |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 81 |
中文關鍵詞: | 液靜壓軸承 、薄膜式節流器 、流阻 |
外文關鍵詞: | hydrostatic bearing, membrane-type restrictor, flow resistance |
相關次數: | 點閱:2 下載:0 |
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在高精密工具機之設計上,為因應高精密機械產業及高承載的需求,通常會採用液靜壓軸承之設計,而液靜壓系統需要節流器作為壓力補償元件。在液靜壓系統中,節流器的選用會影響軸承的效能表現。在文獻中又以主動式節流器相較於固定式節流器,有更佳的剛性表現。故本文之研究,將分析薄膜式節流器用於軸頸式線性滑軌上的分析。
在過去薄膜式節流器性能的模擬上,皆使用簡化之薄膜變形公式,利用此公式模擬而得到薄膜的設計參數,惟較少有搭配軸承之性能的分析。因此本研究將針對薄膜節流器之設計參數對軸承的影響,從基本公式推導計算到使用程式,利用不同的剛性設計參數,進而得出軸承的剛性表現。
利用程式解出軸承設計的參數,並得到腔壓及節流器流阻,以及薄膜運作時之軸承的腔壓分佈。將利用得出的節流器流阻,進而設計薄膜節流器節流面的大小、設計節流間隙及節流台,且得到的油腔壓力考慮對節流器的疲勞破壞。最後得到加工完成的薄膜節流器,並進行實驗,與模擬相互比對,以驗證分析的狀況是否符合模擬。
In the design of high-precision machine tools, in order to meet the needs of high-precision machinery industry and high load bearing, usually the use of hydrostatic bearing design is required. Hydrostatic system requires a restrictor as a pressure compensation components. In the hydrostatic sys-tem, the choice of restrictor will affect the performance of the bearing. In the previous studies show the self-compensation compared to the passive restrictors, there is a higher bearing stiffness performance. Therefore, the study of this thesis will analyze the membrane-type restrictor for the linear journal guide.
In the past, there were few study in the performance of the bearing with membrane-type restrictor analysis. Therefore, this study will be based on the design parameters of the membrane-type restrictor bearing from the basic formula to calculate by Matlab, the use of different stiffness design parameters, and then get the stiffness performance of the bearing.
Using Matlab and excel to solve the recess pressure ratio, and get the pressure and the restrictor flow resistance, then solve the pressure distri-bution for operational condition. By using the result of restrictor flow re-sistance, then design the size of the throttling of the membrane-type re-strictor, the design of regulating gap, regulate surface, and the pressure of the recess to consider the fatigue damage to the restrictor. Finally, the processed membrane-type restrictor is obtained and the experiment is compared with the simulation to verify whether the analysis is in accord-ance with the simulation.
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[26] 軸頸式液靜壓線性滑軌在工具機上的應用2015 Cheng-Han Lee ,Dr. Shin-Chieh Lin
[27] 液靜壓旋轉工作平台設計與測試 2015 Min-Cheng Lin ,Dr. Shin-Chieh Lin