By discussing the influences of the ratio on forces,friction,wear and strength of the vanes,the suitable thickness ratio of the double decked vane compressor had been optimized.

• 上层滑片与下层滑片的厚度比是双层滑片压缩机的重要结构参数，通过对不同厚度比的双层滑片结构的受力状况、摩擦磨损及强度的分析比较，找出了厚度比的适宜值。