[1] Yuan Ding, Jiang Shuyun,. Analysis of dynamic characteristics of self-aligning ball bearing [J]. Journal of Southeast University (English Edition), 2010, 26 (3): 410-414. [doi:10.3969/j.issn.1003-7985.2010.03.008]

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Analysis of dynamic characteristics of self-aligning ball bearing()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 3

Page:

410-414

Research Field:

Mechanical Engineering

Publishing date:

2010-09-30

Info

Title:

Analysis of dynamic characteristics of self-aligning ball bearing

Author(s):

Yuan Ding;  Jiang Shuyun

School of Mechanical Engineering, Southeast University, Nanjing 211189, China

Keywords:

self-aligning ball bearing;  dynamic characteristics;  Jones-Harris method(JHM);  Newton-Raphson method;  bearing stiffness

PACS:

TH132

DOI:

10.3969/j.issn.1003-7985.2010.03.008

Abstract:

A dynamics model of the self-aligning ball bearing is proposed based on the Jones-Harris method(JHM), and a computer program is developed to solve the equations by using the Newton-Raphson method. A parametric analysis of the centrifugal force and the gyroscopic moment, the contact loads, the contact angles, the radial deformation and the radial stiffness is carried out. The analytical results show that the applied loads and the rotational speed are two main factors that can influence the distributions of the contact loads and values of the contact angles. The centrifugal force and the gyroscopic moment increase with the increase in the rotational speed, resulting in the decrease of the inner raceway contact load and the increase of the outer raceway contact load. The outer raceway contact angle increases under the centrifugal force; on the contrary, the inner raceway contact angle decreases. Furthermore, the differences between the inner and the outer contact angles increase with the increase in the rotational speed. The higher rotational speed results in the decrease in radial stiffness for the self-aligning ball bearing, and the raceway curvature coefficient, to some extent, also influences the radial stiffness.

References:

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Memo

Memo:

Biographies: Yuan Ding(1983—), male, graduate; Jiang Shuyun(corresponding author), male, doctor, professor, jiangshy@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.5047507, 50775036), the High Technology Research Program of Jiangsu Province(No.BG2006035), the Natural Science Foundation of Jiangsu Province(No.BK2009612).
Citation: Yuan Ding, Jiang Shuyun.Analysis of dynamic characteristics of self-aligning ball bearing[J].Journal of Southeast University(English Edition), 2010, 26(3):410-414.

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