均匀设计试验法在溢流阀锥阀芯优化中的应用

Application of Uniform Design Text Method in Relief Cone Valve Core Optimization

针对溢流阀在线检测系统中,锥阀芯材料为紫铜时,阀芯力学性能不满足设计要求的问题,提出通过优化部分机械结构参数,进而提升阀芯力学性能的研究方法。设计了一种基于均匀设计试验法的阀芯力学性能的仿真试验方案,借助于有限元法、均匀设计试验、动态响应模型等研究方法,分析了各参数对结构优化影响的敏感度,求解了多指标函数与结构参数之间的动态响应模型。最后,利用指标图谱和遗传算法对结构参数进行了优化计算,对比了均匀设计试验法和指标图谱法的优化结果。结果表明,均匀设计试验和指标图谱优化结果十分接近,均匀设计试验法适用于阀芯力学性能的优化设计。

When the cone valve core material was selected for red copper in relief valve online detection system,the valve mechanical properties does not meet the design conditions. The research method of improving valve core mechanical properties was proposed by optimizing the structural parameters of mechanisms. Lists of test plans of mechanical properties simulation of valve core were scheduled by uniform design test method. By means of finite element method,uniform design test,dynamic response model and other methods,the sensitivity of each parameter to the optimization results was analyzed. The dynamic response model of multiple index function and structural parameters was solved. The structural parameters were optimized by using the index fingerprint and genetic algorithm. The optimization results of uniform design test and index fingerprint were compared. Results show that the results of uniform design test and index fingerprint are very close,uniform design test method is suited for optimization analysis of the valve core mechanical properties.