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Finite Element Analysis on Dynamic Characteristics of Hybrid Bearing Spindle System

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Abstract:

Due to having the features of high accuracy, high stiffness, high load capacity and longer service life, the hybrid bearing spindle system is widely used in grinding. This paper presents an analysis method of hybrid bearing spindle dynamic characteristics. The method uses CFD method to solve the oil film pressure field, instead of Reynolds equation, in order to obtain the oil film stiffness and damping. With the obtained oil film stiffness and damping to build the appropriate constraints, 3D finite element model of the hybrid bearing spindle system is established, and the modal analysis of the spindle system is carried out. Compared the analysis results with the theoretical calculation results, the feasibility and correction of the method are proved.

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Periodical:

Key Engineering Materials (Volume 487)

Pages:

505-509

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.487.505

Citation:

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Online since:

July 2011

Authors:

P. Guan, M. Li, B.C. Li, Tian Biao Yu, Wan Shan Wang

Keywords:

Computational Fluid Dynamics (CFD), Dynamics Characteristics Analysis, Finite Element Model (FEM), Hybrid Bearing

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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