大型塑料检查井多目标参数优化研究

Study on Multi-Objective Parameter Optimization for Large Plastic Check Wells

以大型塑料检查井为研究对象,针对影响大型塑料检查井刚强度的五项可控因素,即检查井壁厚、主管直径、主管高度、子管直径与子管位置高度,采用质量特性均值和标准差的双目标稳健设计方法,并应用综合加权评分法,研究了大型塑料检查井的结构设计关键技术问题,获得了大型塑料检查井刚强度的最优结构设计参数:壁厚5 mm、主管直径1000 mm、主管高度1200 mm、子管直径700 mm、子管位置高度300 mm。研究结果可为大型塑料检查井结构优化设计提供参考。

This paper takes large plastic check wells as the research object and five controllable factors that affect the stiffness and strength of plastic check wells are researched:wall thickness for check wells、main diameter、main height、sub-pipe diameter and sub-pipe position height.The key technical problems of structural design of large plastic check wells are studied by using the two-objective robust design method of mean and standard deviation of mass characteristics and the comprehensive weighted scoring method.Finally,the optimal design parameters of the stiffness and strength of plastic check wells were obtained:wall thickness 5mm,main diameter 1000mm,main height 1200mm,sub-tube diameter 700mm,sub-tube position height 300mm.The research results can provide a reference for structural optimization design of large plastic check wells.