Analysis of Vertical Pump

Vertical Turbine Pumps are the centrifugal pumps which are mounted vertically. Generally, turbine pumps have constant head and fluid flows uniformly at high pressure. Natural frequencies of a vertical turbine pump are

calculated by performing a modal analysis using the Finite Element Method (FEM). Experiment analysis of this model is done by using fast Fourier transform Analyzer during this testing of the model the impact is done by instrumental hammer and acceleration is noted using the accelerometer. Finite Element Analysis(FEA) is a numerical technique for finding an approximate solution to boundary value problems for partial differential equations. It uses subdivision of a whole problem domain into simpler parts, called finite elements and various methods like Galerkin method, Rung-Kutta method etc. Whereas Experimental Modal Analysis (EMA) is a type of impulse response test to determine the structural natural frequencies and the mode shapes of the pump system by using an instrumented hammer instead of natural excitation of the pump. It is a method of a method vibration testing in which a known force is put into a pump and pumps vibration response due exclusively to this force is observed and analyzed. EMA can determine the natural frequency of combined casing, piping, supporting structure.