Araştırma Makalesi

Determination of the Effects of Structural Design Parameters on Dynamic Characteristics of Centrifugal Pump Systems

Cilt: 16 Sayı: 3 30 Eylül 2025
PDF İndir
TR EN

Determination of the Effects of Structural Design Parameters on Dynamic Characteristics of Centrifugal Pump Systems

Abstract

Pump systems are widely used in engineering applications and are meticulously designed using numerous engineering calculations. Engineers strive to produce safer and more efficient pumps. These systems are dynamic, incorporating moving components such as shafts, impellers, and bearings, all subject to various dynamic effects. During the design phase of such systems, understanding how their dynamic characteristics will evolve with the design is crucial for ensuring safe and high-performance operation. In this study, modal analysis and rotordynamic analysis were performed on a rotor system, consisting of the shaft, impeller, and bearings, of a centrifugal pump system. A numerical model of this system was created using MATLAB. The moving rotor of the centrifugal pump was modeled using the Euler-Bernoulli beam theory. The impeller was represented as an equivalent disk after creating its 3D solid model, taking into account its polar and diametric moments of inertia. The ball bearings supporting the rotor were modeled using linear spring and damping elements. It is investigated how the natural frequencies and critical speeds of the rotor system changed for different distances between the two ball bearings used for shaft support and for various bearing stiffness values. Additionally, the presence of anti-resonance frequencies in the transfer frequency response functions between the impeller and the bearings was identified, and their variations with parameter changes were analyzed. The conducted parameter variations revealed that the natural frequencies and critical speeds changed significantly, and these changes exhibited different tendencies depending on the mode shapes. The results demonstrate that constructional design parameters in pump system rotors significantly impact the system's dynamic characteristics.

Keywords

Kaynakça

  1. [1] Z. Huang, B. Han, and Y. Le, “Modeling method of the modal analysis for turbomolecular pump rotor blades”, Vacuum, vol. 144, pp. 145-151, 2017.
  2. [2] R.S. Minette, S.F. SilvaNeto, L.A. Vaz, and U.A. Monteiro, “Experimental modal analysis of electrical submersible pumps”, Ocean Engineering, vol. 124, pp. 168–179, 2016.
  3. [3] M. Ashri, S. Karuppanan, S. Patil, and I. Ibrahim, “Modal Analysis of a Centrifugal Pump Impeller Using Finite Element Method”, MATEC Web of Conferences, 13, 0403 0 (2014).
  4. [4] M.F.B. Fasal Mohamed, and N.A.B. Azmir, “Study on behavior of water treatment pump before and after modification using finite element modal analysis”, IOP Conf. Series: Materials Science and Engineering824 (2020) 012004.
  5. [5] P. Bagiński, A. Andrearczyk, P. Ziółkowski, “Investigation of the dynamic behaviour of the vertical rotor of a refrigeration compressor supported by foil bearings”, Renewable Energy 253 (2025) 123505.
  6. [6] V. D’Addio, P. Forte, F. Frendo, and R. Squarcini, “Rotordynamic analysis of a centrifugal pump for automotive applications”, Procedia Structural Integrity 24 (2019) 510–525.
  7. [7] S. Yong, W. Donglei, J. Tao1, and L. Yanwei, “Modal Analysis on Impeller Rotor of the Axial Flow Pump based on Fluid-structure Interaction”, IOP Conf. Series: Earth and Environmental Science 376 (2019) 012023.
  8. [8] M.N. Oza, D.S. Shah, “Theoretical and experimental modal analysis of centrifugal pump radial flow impeller”, IOP Conf. Series: Materials Science and Engineering 992 (2020) 012003 IOP Publishing, doi:10.1088/1757-899X/992/1/012003.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Dinamikler, Titreşim ve Titreşim Kontrolü , Makine Teorisi ve Dinamiği

Bölüm

Araştırma Makalesi

Erken Görünüm Tarihi

30 Eylül 2025

Yayımlanma Tarihi

30 Eylül 2025

Gönderilme Tarihi

17 Haziran 2025

Kabul Tarihi

7 Temmuz 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 16 Sayı: 3

Kaynak Göster

IEEE
[1]M. Şen, “Determination of the Effects of Structural Design Parameters on Dynamic Characteristics of Centrifugal Pump Systems”, DÜMF MD, c. 16, sy 3, ss. 739–747, Eyl. 2025, doi: 10.24012/dumf.1721157.
DUJE tarafından yayınlanan tüm makaleler, Creative Commons Atıf 4.0 Uluslararası Lisansı ile lisanslanmıştır. Bu, orijinal eser ve kaynağın uygun şekilde belirtilmesi koşuluyla, herkesin eseri kopyalamasına, yeniden dağıtmasına, yeniden düzenlemesine, iletmesine ve uyarlamasına izin verir. 24456