潤滑油黏度比對靜壓軸承靜動態特性之影響

Influences of Viscosity Ratio on the Static andDynamic Characteristics of Hydrostatic Bearing

周先慬(Hsien-Chin Chou)

指導教授 ： 康淵 ； 張永鵬

中原大學/工學院/機械工程研究所/博士(2014年)

https://doi.org/10.6840/CYCU.2014.00037

摘要

中文摘要
本研究分析、比較並探討可變黏度流體潤滑靜壓軸承之靜態與動態特性，依照軸承運轉操作之特性區分，可以概略分為靜態分析與動態分析兩個部分並且分別敘述如下。
靜態分析主要分析靜壓軸承之位移比、黏度比、有效面積比、反扣側軸承之節流參數比以及承載側軸承之節流參數比對反扣側軸承之節流參數比的比值等對軸承性能：承載能力參數與油膜靜剛度參數的影響，探討可變黏度流體潤滑靜壓軸承之最佳設計參數與其相對應之操作條件範圍。
動態分析主要分析靜壓軸承之幾何設計參數、潤滑油黏度比以及節流參數比等對軸承性能的影響，探討靜壓軸承的動態特性與性能表現。將推導建立靜壓軸承的動態響應數值計算方程式，使用Runge-Kutta數值方法求解油膜運動之時間數值積分，研究液靜壓軸承動態響應建模、公式推導、及建立數值模擬計算程式，並探討潤滑油黏度比、節流參數以及軸承幾何設計參數等對軸承動態響應特性所帶來的影響。
預期可以建立可變黏度流體潤滑靜壓軸承之設計分析與性能操作資料庫，研究成果將應用於智慧型精密工具機的設計製造上作為重要的基礎技術。

關鍵字

流體靜壓軸承系統、黏度比、節流參數比、有效面積比、承載能力、油膜靜剛度

並列摘要

Abstract
This study, investigate through analysis and comparison the static and dynamic characteristics of variable-viscosity fluid lubricated hydrostatic bearings. According to the differences within the operation characteristics of hydrostatic bearings, this investigation can be broadly categorized into static and dynamic analyses two parts and illustrated respectively as follows.
Static analysis mainly analyzes the influences of displacement ratio, viscosity ratio, effective area ratio, restriction parameter ratio of backing side bearing, and the specific value of restriction parameter ratio of loading side to backing side, on the performances: load capacity parameter and film stiffness parameter of hydrostatic bearing. Exploring the optimal design parameters and corresponding range of operating conditions of variable-viscosity fluid lubricated hydrostatic bearings.
Dynamic analysis mainly analyzes the influences of the geometric design parameters, oil viscosity ratio and restriction parameter ratio on the characteristics of hydrostatic bearings in order to investigate the dynamic characteristics and performances of them. This study will derive to establish the numerical calculating program on dynamic responses of worktable, apply the Runge-Kutta method to the time integration of film motion, study the modeling, equation derivation, numerical simulation program of bearing responses, and investigate the influences of oil viscosity ratio, restriction parameters, and bearing-geometric design parameters on the dynamic characteristics of hydrostatic bearings.
Expected to create a database of design, analysis, operation and performances for the variable-viscosity fluid lubricated hydrostatic bearings. The achievements of this research will be applied in the design and manufacture of intelligent precision machine tools as an important underlying technique.

並列關鍵字

Load Capacity ； Film Static Stiffness ； Effective Area Ratio ； Restriction Parameter Ratio ； Hydrostatic Bearing ； Viscosity Ratio

參考文獻

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