基于有限元的振动筛拓扑优化分析

Topology Optimization Analysis Based on the Vibration Screen of Finite Element

大型直线型振动筛广泛应用于石油、矿产等工业生产过程中,振动筛的物料处理量直接影响生产效率,大型振动筛虽处理量大,但存在设备自重大、振幅低等问题。采用有限元方法对振动筛结构进行拓扑优化设计,并以对优化结果进行强度分析和模态分析,分析结果表明优化后的结构自重降低,提高了固有频率,其强度符合实际生产需求,该优化过程为大型振动筛的设计工作提供可靠的理论依据。

Large scale of linear vibration screens were widely used in petroleum,mineral and other industrial production process,the material treatment of vibrating screen directly affected the production efficiency.Although large vibration screen had a great quantity of process,there existed the problems of big equipment weight and vibration amplitude.A finite element method was used to optimize the topologic design of vibration screens structure.The optimization results of strength analysis and modality analysis show that the weight of optimized structure is reduced,the natural frequency is improved,its strength is consistent with the actual production requirements,its process optimization provides reliable theoretical basis for the design of large vibration screens.