Recent Trends in Rheological Measuring Techniques of Elastohydrodynamic Lubrication Film Using Fluorescence Method

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  • OTSU Takefumi
    Division of Mechatronics, Department of Innovative Engineering, Faculty of Science and Technology, Oita University

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  • 蛍光法を利用した弾性流体潤滑膜のレオロジー測定技術
  • ケイコウホウ オ リヨウ シタ ダンセイ リュウタイ ジュンカツマク ノ レオロジー ソクテイ ギジュツ

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<p>This paper describes rheological measuring techniques in elastohydrodynamic lubrication (EHL) contact using in-situ observation systems with fluorescence method. One of the important issues facing the study of EHL mechanism is understanding how rheological properties change through the EHL contact. It has been reported that the viscosity profile and the state of lubricant, such as solidification and glass transition, in the lubrication film were obtained by using new type of measuring system shown in this paper. In this article, previous researches regarding to rheological properties in the EHL contact and the technique for measuring film thickness using the fluorescence method are also described.</p>

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