大型单闸板防喷阀阀体结构拓扑优化方法研究

摘要

为提高大型单闸板防喷阀阀体结构的加工经济性和设计合理性,研究了防喷阀阀体结构拓扑优化方法。首先,分析了防喷阀工作原理和工作特性,提出了防喷阀阀体结构拓扑优化的要求;其次,建立了阀体结构拓扑优化的流程和相关的目标函数,进行了目标函数的灵敏度分析;最后,针对实际的阀体结构进行了拓扑优化,以实际的算例说明所提方法的有效性。拓扑优化结果表明：优化后的防喷阀阀体结构节省了16.8%的材料,在承载力学特性和经济性方面均有提高。%To improve the manufacturing economy and design rationality of the blowout prevention valve of a largescale single ram, we optimize its structural topology. First, we propose the requirements for the topological optimization through analyzing its working principles and characteristics. Second, we establish the flow chart and objective function of the topological optimization and perform the objective function sensitivity analysis. Finally we optimize the structural topology of an actual blowout prevention valve, and the real example shows that our method is effective. The topological optimization results show that the optimized blowout prevention valve can save 16.8% of the material needed for manufacturing and enhance its mechanics characteristics.