Shear behavior of EHL film on practical traction test

摘要

In this report, many traction tests are carried on in order to investigate shear behavior of EUL film on traction fluid under practical conditions. The conditions in which the experiments performed are selected considering those of practical traction devices, e.g. automotive CVT, etc. From the traction response with the slide-roll ratio which depicts a traction curve, the linear shear behavior at the very low shear rate, which is controlled by a elastic property of fluid, and non-linear shear behavior are experimentally estimated. Furthermore, the empirical relationship between the shear stress and shear strain is formulated.