排灌机械工程学报
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Journal of Drainage and Irrigation Machinery Engin  2016, Vol. 34 Issue (6): 477-482    DOI: 10.3969/j.issn.1674-8530.15.0153
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Numerical simulation on modal of mine emergency drainage multistage pump rotor
CAO Weidong, LIU Bing, ZHANG Yining, LIU Guanghui
National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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Abstract To obtain the modal characteristic of multistage pump rotor in operation, the three-dimensional flow passage and the structure of the rotor for one mine emergency drainage multistage pump were established, then, based on the method of fluid-solid coupling, a model of the rotor which contains impellers and shaft was simulated with ANSYS WORKBENCH software considering the influence of both the damping and pre-stress from fluid especially. In addition, the modal of rotor was simulated without pre-stress and with different speed of revolution respectively, the characteristics of modal under different situations were obtained, and the reason for different profiles of modal was analyzed.Results show that pre-stress in the pump has a significant influence on the modal of rotor, then, the damping from fluidy has a great effect on that as well. Calculation for the modal of rotor can contribute significantly to reasonable design of multistage pump and determination of revolution.
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Articles by authors
CAO Wei-Dong
LIU Bing
ZHANG Yi-Ning
LIU Guang-Hui
Key wordsmultistage pump   rotor   coupled fluid-structure   modal     
Received: 2015-07-06;
Cite this article:   
CAO Wei-Dong,LIU Bing,ZHANG Yi-Ning et al. Numerical simulation on modal of mine emergency drainage multistage pump rotor[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(6): 477-482.
 
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