Papers by Author: Yu Feng Ding

Abstract: The structure parameter of sliding bearing has significant influence on entire shafting. The structural optimization of elliptical sliding bearing based on the genetic algorithm theory is studied in the paper. Shafting logarithmic decrement is taken as the objective function, the bearing width-diameter ratio, relative clearance and main design parameters such as ellipticity is taken as design variables. Mutual coupling effect between sliding bearing and rotor is considered in the optimization model. An elliptical sliding bearing of shafting has been optimized, and the solution result shows that the shafting stability has been increased, it indicates this method is feasible.

Abstract: Aiming at the reuse of design knowledge, this paper proposes knowledge reuse technology for product design of printing press which is based on rule and case. An integrated software package with SQL Server which is Database Management System (DBMS) and VisualC++6.0 which is a kind of development tools has been developed. This software may be embedded in the environment of Solidworks to assist the designer to index correlative design knowledge and develop new product of printing press after modification.