The Study Of FEM For Pumping House Infrastructure Of Jianbi Pumping Station

At present, the main methods in the stress analysis and the stability analysis of the pumping station are: mechanics of structures method, mechanics of materials method, finite element method. In the structural analysis of the pumping station, it is a common way that the special structure is assumed as plane problems. But the results of the simplified method is cursory, because there exists large differences with the true results. As the large pumping station to be concerned, its geometric forms of the inlet and outlet flow passage and devices distribution are complex, which made the geometric forms are very anomalistic. The loads distribution and constrain conditions are also unequal, so that the whole pumping house is very complex, which made that it is necessary to carry out spacial three-dimensional analysis for the large pumping house.This paper is written combined with the engineering of Jianbi pumping station, which is located in Zhen Jiang city. Three-dimensional finite element model of the pumping house infrastructure is set up, in which the spacial element model is adopted to simulate the structural characteristics under the loads of each condition. According to the maximum of the displacement and stress and their location, this paper analyzes the stress and displacement condition of the pumping house infrastructure. Through the analysis of the typical nodes in the chosen sections, this paper appraises the whole structural designment of the pumping station. The internal force of the finite element method compares with the plane results of the mechanics of structure method, finding the differences between them, and then analyzing the reason. In the general postprocessor of ANSYS, the values and locations of the maximal tensile stress can be acquired. Through the analysis of the chosen typical section, the main locations of biggish tensile stress in the whole pumping house infrastructure could be got, and the reason why cause the tensile stress is analyzed, which could be the reference to the structural reinforced designing in the similar type of the large-scale pumping station.Compared to other simplified analytical method, FEM provides much feasibility and foreground for the pumping station's structural design. The paper has validated...