Parameters such as loop element quadrilateral has effectively solved the model

Valve working on a variety of loads were analyzed to establish the corresponding mechanical model. Because of its structure and suffered loads more complicated, this article uses a  abrasive wheels  8-node quadrilateral element of the model parameters such as the ring has effectively solved. In order to improve the life of reciprocating pump cone valve, built its structural optimization mathematical model, the objective  grinding wheel  largest integrated stress on the body, including the valve without the impact of constraint conditions, the valve clearance liquid flow rate constraint, size constraints and so on. The non-linear mathematical  Diamond blade  mathematical programming. According to the characteristics of the problem, this paper uses a fast convergence, stability, good sequential quadratic programming model was effectively solved.