NUMERICAL STUDY OF STRENGTH AND STIFFNESS OF CENTRIFUGAL IMPELLER USING FLUENT AND ABAQUS SOFTWARE
Impeller is one of the important components in centrifugal pumps. The strength and stiffness of the impeller were investigated by fluid-structure interaction (FSI) simulation. A multiple reference frame technique was applied in order to address the impeller-volute interaction. The distribution of pressure and shear stress on the blades and the hub was obtained by FLUENT. Centrifugal force, pressure force and friction force were imposed on the impeller, and its stress and displacement distributions under design conditions were obtained using ABAQUS. The results indicate that in comparison with pressure, shear stress has negligible influence on impeller deformation. The impeller is structurally safe under design conditions, and its maximum rotational speed is 1780r/min. At this rotational speed, the impeller will collide with the volute tongue while the stress still remains at a lower level. Furthermore, two improved design methods for the impeller were put forward in consideration of both strength and stiffness of the impeller.
SHAO Chunlei GU Boqin CHEN Ye
College of Mechanical and Power Engineering, Nanjing University of Technology, No.5 Xin Mo Fan Road, College of Mechanical and Power Engineering, Nanjing University of Technology, No.5 Xin Mo Fan Road,
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）