基于RSM的楔形闸阀板优化设计

Optimal Design of Wedge Gate Valve Plate Based on RSM

以某楔形闸阀阀板为研究对象,采用RSM方法(响应面法)对阀板的结构参数进行参数优化设计。首先将阀板在最大静压力工况下的质量、最大应力、最大形变作为响应,对阀板的结构参数进行灵敏度分析,采用拉丁超立方算法对设计变量抽样后进行正交试验设计,利用遗传算法拟合出响应面预测模型,进而将质量、应力、变形值最小作为优化目标,应用多目标遗传算法对预测模型进行最优化求解。结果表明,优化后其质量降低2.53%,最大应力降低4.9%,最大变形量降低17%,使其自密封性能显著提高。在楔形阀板的结构参数最优化问题中,参数灵敏度分析结合响应面法能够快速有效地获得问题最优解,优化后的闸板工作稳定。

Taking a wedge-shaped gate valve valve plate as the research object,this paper uses the response surface method to optimize the parameters of the valve plate's structural parameters.Firstly,the mass,maximum stress and maximum deformation of the valve plate under the maximum static pressure condition are used as the response,and the sensitivity analysis of the structural parameters of the valve plate is carried out.The algorithm fitted the response surface prediction model,and then took the minimum value of mass,stress and deformation as the optimization objective,and applied the multi-objective genetic algorithm to optimize the prediction model.The results show that after optimization,its mass is reduced by 2.53%,the maximum stress is reduced by 4.9%,and the maximum deformation is reduced by 17%,so that its self-sealing performance is significantly improved.In the optimization of structural parameters of the wedge valve plate,the parameter sensitivity analysis combined with the response surface method can quickly and effectively obtain the optimal solution of the problem,and the optimized valve plate works stably.