2021 Volume 66 Issue 2 Pages 116-123
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.
