الخلاصة

Abstract— The geometric, kinematic conditions in synovial human knee joint (journal bearings) are introduced and the basic properties of the gait cycle (stance phase- swing phase) reviewed. Evaluation of film parameters in (hydrodynamic- squeeze- elasto hydrodynamic- boundary) with using new formula introduced. Film thickness for each lubrication type was calculated based on the physical and geometric characteristics of each type that different in aging or injury, relationship properties of gait cycle with the teaching of lubrication are the discussion.