It is important to decide the minimum film thickness and viscosity of a multigrade lubricant in a contact surface between engine composition articles. By carrying out acceleration, deceleration, and sliding-rolling ratio movement, it is experimented t...
It is important to decide the minimum film thickness and viscosity of a multigrade lubricant in a contact surface between engine composition articles. By carrying out acceleration, deceleration, and sliding-rolling ratio movement, it is experimented that film formation variations in the contact surface are measured. In order to exactly investigate the variations of a multigrade lubricant film thicknesses. optical interference images are continuously taken by high resolution CCD camera, the friction torques in a contact surface measured simultaneously as well.