Then we can estimate the lubrication state between the friction faces . with the old large numbers of testing numbers the wear parameter k of every point on the steady work ' s cam can be decided 通过计算凸轮表面各位置润滑油膜厚度，判断其润滑状态，结合以前大量的实验数据，确定出凸轮各位置在稳态下工作时的磨损系数k值。
