Investigation of the possibility to simulate oscillations of the pump housing exposed to effects of the unsteady hydrodynamic forces

Increase in the service life and noise reduction in pumps is an important area in modern pump engineering. An attempt was made to introduce conjugate calculations in verifying correct operation of the mathematical model as the first step and identifying the main oscillation frequencies of the pump housing subsequently. The FSI interface was used in conjugate calculations at the boundary between liquid and solid media. The obtained oscillation signals were analyzed using the Fourier analysis to identify the main parasitic frequencies in the pump. It was expected that the main parasitic frequency would be the blade frequency. As a result of calculations, it became possible to verify correct operation of the mathematical model by applying it to the simplest model of a glass, which behavior could be easily explained. The mathematical model was tested on cantilever and multistage pumps, demonstrated good results and made it possible to establish that blade frequency was the main oscillation frequency.

References

[1] Protopopov A., Jakovich C. Compromise resource-efficiency curve for a centrifugal pump. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 492, art. 012034, doi: https://doi.org/10.1088/1757-899X/492/1/012034

[2] Protopopov A., Mukhlaeva A., Tkachuk B. Resource efficiency compromise for centrifugal pump. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 589, art. 012005, doi: https://doi.org/10.1088/1757-899X/589/1/012005

[3] Lomakin V.O., Chaburko P.S., Kuleshova M.S. Multi-criteria optimization of the flow of a centrifugal pump on energy and vibroacoustic characteristics. Procedia Eng., 2017, vol. 176, pp. 476–482, doi: https://doi.org/10.1016/j.proeng.2017.02.347

[4] Valiev T., Petrov A. Simulation of non-stationary loads on the rotor of a pumping unit with an assembly pipeline. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 492, art. 012038, doi: https://doi.org/10.1088/1757-899X/492/1/012038

[5] Zaytseva A., Protopopov A. Methodology for the comprehensive optimization of a centrifugal pump with a magnetic coupling. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012011, doi: https://doi.org/10.1088/1757-899X/779/1/012011

[6] Protopopov A., Makhlaeva A., Panya A. Determination of the coefficient of economic efficiency of frequency regulator. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012018, doi: https://doi.org/10.1088/1757-899X/779/1/012018

[7] Valyukhov S., Galdin D., Korotov V. et al. Profile optimization of the impeller blade of a low-speed centrifugal pump using surrogate modeling. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012023, doi: https://doi.org/10.1088/1757-899X/779/1/012023

[8] Shablovskiy A., Makhlaeva A., Shikova O. Obtaining of the optimal speed of the centrifugal pump. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012019, doi: https://doi.org/10.1088/1757-899X/779/1/012023

[9] Protopopov A., Makhlaeva A., Kaplenkova P. Predicted resource of the most loaded centrifugal pump bearing. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012017, doi: https://doi.org/10.1088/1757-899X/779/1/012017

[10] Kochetov A., Petrov A., Kuleshova M. Complex optimization of vaned stators of high-speed centrifugal pumps for thermal stabilization systems. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012054, doi: https://doi.org/10.1088/1757-899X/779/1/012054

[11] Protopopov A., Makhlaeva A., Kaplenkova P. Predicted resource of the most loaded centrifugal pump bearing. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012017, doi: https://doi.org/10.1088/1757-899X/779/1/012017

[12] Lomakin V., Valiev T., Chaburko P. Application of optimization algorithms to improve the vibroacoustic characteristics of pumps. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012044, doi: https://doi.org/10.1088/1757-899X/779/1/012044

[13] Kolodin I. Optimization of parameters of the pressure regulator with variable characteristic. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012046, doi: https://doi.org/10.1088/1757-899X/779/1/012046

[14] Averyanov A., Protopopov A. Mathematical modeling of a centrifugal pump with a spiral tap of simplified geometry with an open and closed wheel. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012048, doi: https://doi.org/10.1088/1757-899X/779/1/012048

[15] Britsin S., Ryabinin M., Sarach E. Calculation of the hydro-pneumatic suspension damper. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012033, doi: https://doi.org/10.1088/1757-899X/779/1/012033

[16] Saprykina M., Lomakin V. The calculation of multiphase flows in flowing parts of centrifugal pump. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012037, doi: https://doi.org/10.1088/1757-899X/779/1/012037

[17] Kasatkin M., Petrov A. Hydrodynamic modeling of cavitation in a multistage centrifugal pump during its operation in the constant feed mode with a change in the rotor speed of the pump. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012047, doi: https://doi.org/10.1088/1757-899X/779/1/012047

[18] Petrov A., Lysenko A., Isaev N. et al Optimal design of inlet device of multistage centrifugal pump. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 492, art. 012040, doi: https://doi.org/10.1088/1757-899X/492/1/012040

[19] Isaev N., Budaev G., Danilov D. et al. Investigation of the influence of wear in impeller seals on the axial force in double suction pumps. IOP Conf. Ser.: Mater. Sci. Eng., 2020, vol. 779, art. 012051, doi: https://doi.org/10.1088/1757-899X/779/1/012051

[20] Isaev N. The effect of design parameters of the closed type regenerative pump the energy characteristics. IOP Conf. Ser.: Mater. Sci. Eng., 2019, vol. 492, art. 012026, doi: https://doi.org/10.1088/1757-899X/492/1/012026