COMBINED EFFECTS OF FERROFLUIDS AND EXTERNAL MAGNETIC FIELDS ON THE LOAD PERFORMANCE OF A SINE FILM THRUST BEARING

磁性流體與外部磁場之總和效應對於正弦膜厚推力軸承承載性能之影響

林昭仁(Jaw-Ren Lin) ； 江新祿(Hsiu-Lu Chiang) ； 邱煜康(Yu-Kang Chiu)

《南亞學報》 37期 (2017/12) Pp. 1-10

摘要

Thrust bearings are generally designed to support the axial thrust force generated from rotating machinery. Therefore, the study of the load performances of thrust bearings is important in engineering applications. The aim of the present paper is to investigate the combined effects of ferrofluids and external magnetic fields on the load performance of a sine film thrust bearing. The results of the film pressure and the load capacity are discussed through the variation of the volume concentration parameter and the magnetic parameter. The results of the present study provide useful references for bearing design and engineering applications.

關鍵字

sine film ； thrust bearings ； load performances ； ferrofluids ； magnetic fields

並列摘要

推力軸承之機制常用於支持旋轉機械在旋轉時所產生軸向推力，進而可避免轉動件之軸向位移。因此，推力軸承之承載性能的探討，於工程應用上便顯得相當重要。本文之目的主要是在探討，正弦膜厚推力軸承使用磁性流體潤滑劑並施加外部磁場之作用時，兩者之總和效應對於軸承承載性能之影響。藉由磁性流體之體積濃度參數與外部磁場參數之變化，探討正弦推力軸承之流體膜壓力與承載性能。本研究所得之成果，可提供薄膜潤滑與工程實務上在設計推力軸承時之有用參考訊息。

並列關鍵字

正弦膜厚 ； 推力軸承 ； 承載性能 ； 磁性流體 ； 外部磁場