Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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An Experimental Study on Friction Reduction in Journal Bearings

저어널 베어링에서의 마찰감소현상에 대한 실험적 연구

  • 이득우 (한국과학기술원 생산공학과) ;
  • 김경웅 (한국과학기술원 생산공학과)
  • Published : 1986.05.01
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Abstract

The friction reduction by dilute polymer solutions was investigated experimentally in journal bearings. Flow pattern visualization and torque measurements were performed for a concentric case (.epsilon.=0). The effects of polymer concentration, bearing clearance, and polymer molecular weight on friction reduction were examined. The frictional torque and the intensity of vortices of the case of polymer solution were reduced compared with those of base oil only.

본 연구에서는 첨가할 고분자로서 윤활유에 일반적으로 점도지수 향상제로 사용되는 PIB(polyisobutylene)를 사용하여, 되도록 실제 베어링에 가까운 조건에서 Toms효과에 대해 알아 본다.

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