A 3D Huaiyin 的有限元素模型 South-to-North 水转移的东方线路的第三个抽水站在这份报纸被描述。二个方法在时间领域和频率领域在计算和抽水站的颤动分析被使用。整个流动经过的压力跳动地根据在物理模型测试的一些地点记录的压力跳动被组织。在压力跳动下面的泵房子的动态时间历史分析被执行。根据在测量泵房子的免费颤动特征分析的点和结果的压力跳动的光谱特征,同时,随机的颤动的光谱分析方法被用来计算泵房子的动态回答。从两个方法的结果是一致的,它显示他们两个都是讲理的。结果能在 Huaiyin 的反颤动安全评估被用于参考第三个抽水站。
A 3D finite element model of the Huaiyin third pumping station of the Eastern Route of the South-to-North Water Transfer is described in this paper. Two methods were used in the calculation and vibration analysis of the pumping station in both the time domain and the frequency domain. The pressure pulsation field of the whole flow passage was structured on the basis of pressure pulsations recorded at some locations of the physical model test. Dynamic time-history analysis of the pump house under pressure pulsations was carried out. At the same time, according to spectrum characteristics of the pressure pulsations at measuring points and results of free vibration characteristics analysis of the pump house, the spectrum analysis method of random vibration was used to calculate dynamic responses of the pump house. Results from both methods are consistent, which indicates that they are both reasonable. The results can be used for reference in anti-vibration safety evaluation of the Huaiyin third pumping station.