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Journal of Drainage and Irrigation Machinery Engin  2010, Vol. 28 Issue (2): 169-173    DOI: 10.3969/j.issn.1674—8530.2010.02.017
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Numerical analysis of integrated performance of mechanicalseals with regular micro surface structure
Fu Yonghong1, Ji Jinghu1, Hua Xijun1, Yang Chaojun1, Bi Qinsheng2
(1. School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. Faculty of Science, Jiangsu University, Zhenjiang, Jiangsu 212013,China)
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Abstract A theoretical analysis model was developed to study mechanical seals with regular micro surface structure considering cavitation within the fluid film between two faces and the interaction between hydrodynamic and hydrostatic components. Multi grid method was used to study the effect of geometric parameters of dimples which in the form of spherical shape on the seal performance such as opening force, friction torque and fluid film stiffness for various seal parameters. The results show that the seal factor and the ratio of depth/diameter of dimple have significant effect on the seal performance. Opening force and fluid film stiffness increase as the seal factor increases, there have optimum values for the ratio of depth/diameter of dimple to maximize the opening force and fluid film stiffness respectively, and as the seal factor increases the optimum value of ratio of depth/diameter decreases. Area density of dimple has little effect on the seal performance, there have optimum values for the area density of dimple to maximize the opening force and fluid film stiffness respectively, and the seal parameter has not effect on the optimum value of area density.
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Articles by authors
FU Yong-Hong
JI Jing-Hu
HUA Xi-Jun
YANG Chao-Jun
BI Qin-Sheng-
Key wordsmechanical seal   dimple   multi grid method   seal performance   numerical analysis     
Received: 2009-10-14; Published: 2010-03-30
Cite this article:   
FU Yong-Hong,JI Jing-Hu,HUA Xi-Jun et al. Numerical analysis of integrated performance of mechanicalseals with regular micro surface structure[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(2): 169-173.
 
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