Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2607
標題: 外部供油式多孔性頸軸承分析
Analysis of Porous Journal Bearing Lubricated
作者: 陳尚德
chen, shang te
關鍵字: 多孔性;頸軸承;外壓
出版社: 機械工程學系
摘要: 
本論文主要為求解外部供油式多孔性介質之頸軸承潤滑特性分析。以雷諾方程式為主要之潤滑之特徵方程式,並以達西方程式作為多孔性介質之特徵方程式,藉由此兩聯立方程式並加入所謂的雷諾狀態之邊界條件求解出外部供油之多孔性介質頸軸承之狀態行為。
在本論文中主要對無限長之外部供油式多孔性介質頸軸承作分析,以控制轉動軸承參數 、 多孔性介質滲透率參數 以及偏心比 等無因次化參數探討軸呈轉動時可能之狀態效應。
經過分析其結果顯示,發現多孔性介質有調節轉軸內部之壓力平衡的效果,且其負荷會隨著轉動軸承參數與偏心比的增加而提高,且油膜破裂點(rupture point)的值會隨著多孔性介質之滲透率參數的增加而減少,並隨轉動參數與偏心比的增加而變大。

This paper analyze the lubrication performance of surrounding oil supply porous journal bearings. Reynolds equation is used to describe the lubrication performance of journal bearing. Darcy's law is used to describe the pressure distribution inside the porous media. These two coupled equations and applied Reynolds condition are then used to analyze the characteristics of the surrounding oil supply porous journal bearings.
This paper analyze the performance of infinite long surrounding oil supply porous bearing by three dimensionless parameters ( the permeability ratio K,the bearing number ,the eccentricity ratio ) which are employed to characterize the bearing performance.
The result shows that : porous media have the effect of regulating the pressure between the bearing and porous media,and the rupture point will decrease by the increase of permeability ratio of the porous madia,but increase by the increase of bearing number and the eccentrically ratio.
URI: http://hdl.handle.net/11455/2607
Appears in Collections:機械工程學系所

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