Precise analysis of hydraulic press performance based on rough set

In order to make the design plan better reflecting the user requirement, and change the design manner from experience-driven to performance-driven design of the hydraulic press, a method of calculating the correlation between the user requirement and hydraulic press performance is proposed;Map between them is established by use of rough set theory. The result shows that this method can reflect the user's requirement and the relevance performance of hydraulic machine objectively, and has certain significance to increase the quality of the hydraulic design.