某深邃泵房结构振动有限元数值分析

Finite Element Numerical Analysis on Structural Vibration of a Deep Pumping House

摘要:

以武汉市某污水处理厂深邃泵房为研究对象，基于ANSYS有限元数值分析软件，建立几何模型及材料模型，选用合适的泵房约束，并进行网格划分，对其楼层结构进行模态分析，计算出其固有频率和振型，根据计算结果提供相应的修改建议，并对改进后的深邃泵房结构进行模态分析。结果显示，改进后的泵房振动频率远离水泵主频，不易产生共振。

Abstract:

Taking a deep pumping house of a wastewater treatment plant (WWTP) in Wuhan as the study object, based on ANSYS finite element numerical analysis software, the geometric model and material model are established. The appropriate constraint of pumping house is selected and the mesh generation is carried out. The modal analysis of its floor structure is carried out. Its inherent frequency and vibration mode are calculated. The relevant amending advice is provided according to the calculation results. The modal analysis of the deep pumping house structure after improved is carried out. The result shows that the vibrational frequency of pumping house after improved is far from the dominant frequency of the pumps and the resonance is not easy to produce.