2009
DOI: 10.1115/1.3142883
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Study on Nonlinear Dynamic Response of an Unbalanced Rotor Supported on Ball Bearing

Abstract: An unbalanced rotor dynamic model supported on ball bearings is established. In the model, three nonlinear factors of ball bearing are considered, namely, the clearance of bearing, nonlinear Hertzian contact force between balls and races, and the varying compliance vibrations because of periodical change in contact position between balls and races. The numerical integration method is used to obtain the nonlinear dynamic responses; the effects of the rotating speed and the bearing clearance on dynamic responses… Show more

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Cited by 57 publications
(35 citation statements)
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“…According to Ref. [12,17], the ball bearing forces f Bx and f By generated in the x-and ydirections can be obtained as follows:…”
Section: Ball Bearing Modelmentioning
confidence: 99%
“…According to Ref. [12,17], the ball bearing forces f Bx and f By generated in the x-and ydirections can be obtained as follows:…”
Section: Ball Bearing Modelmentioning
confidence: 99%
“…It is assumed that the outer race of the ball bearing is fixed and the inner race rotates at the shaft speed. When a rolling element passes through the action line of the radial load, one periodic vibration generates, which is often called the varying compliance vibration or the ball passage vibration [10]. The varying compliance frequency is given by…”
Section: Theoretical Analysesmentioning
confidence: 99%
“…e displacement of the m node of the rotor is set to x rm and y rm , where x = x m − x wi , y = y rm − y wi . According to [29,30], the bearing force of the rotor acting on the i support can be obtained:…”
Section: Supporting Connection Between Rotor and Casingmentioning
confidence: 99%