title: Optimization and analysis of centrifugal pump considering fluid-structure interaction.
abstract: This paper presents the optimization of vibrations of centrifugal pump considering fluid-structure interaction (FSI). A set of centrifugal pumps with various blade shapes were studied using FSI method, in order to investigate the transient vibration performance. The Kriging model, based on the results of the FSI simulations, was established to approximate the relationship between the geometrical parameters of pump impeller and the root mean square (RMS) values of the displacement response at the pump bearing block. Hence, multi-island genetic algorithm (MIGA) has been implemented to minimize the RMS value of the impeller displacement. A prototype of centrifugal pump has been manufactured and an experimental validation of the optimization results has been carried out. The comparison among results of Kriging surrogate model, FSI simulation, and experimental test showed a good consistency of the three approaches. Finally, the transient mechanical behavior of pump impeller has been investigated using FSI method based on the optimized geometry parameters of pump impeller.
authors.affiliation: Wuhan Second Ship Design and Research Institute, Wuhan, Hubei 430064, China.
authors.forename: Yu
authors.identifier: 0000-0003-2054-7225
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Hubei Key Laboratory of Advanced Technology of Automobile Parts, Wuhan University of Technology, Wuhan, Hubei 430074, China.
authors.forename: Sanbao
authors.initials: S
authors.lastname: Hu
authors.affiliation: Center for Computer-Aided Design, School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan, Hubei 430074, China.
authors.forename: Yunqing
authors.identifier: 0000-0003-0059-5369
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Center for Computer-Aided Design, School of Mechanical Science & Engineering, Huazhong University of Science & Technology, Wuhan, Hubei 430074, China.
authors.forename: Liping
authors.identifier: 0000-0003-4873-8533
authors.initials: L
authors.lastname: Chen
mesh_terms: D002498:Centrifugation / Q000295:instrumentation* / Q000379:methods*; D003198:Computer Simulation; D057446:Hydrodynamics; D008962:Models, Theoretical; D014732:Vibration; D014783:Viscosity