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On the Free Vibration Modeling of Spindle Systems: A Calibrated Dynamic Stiffness Matrix
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The effect of bearings on the vibrational behavior of machine tool spindles is investigated.
This is done through the development of a calibrated dynamic stiffness matrix (CDSM) method, where the bearings flexibility is represented by massless linear spring elements with tuneable stiffness.
A dedicated MATLAB code is written to develop and to assemble the element stiffness matrices for the system’s multiple components and to apply the boundary conditions.
The developed method is applied to an illustrative example of spindle system.
When the spindle bearings are modeled as simply supported boundary conditions, the DSM model results in a fundamental frequency much higher than the system’s nominal value.
The simply supported boundary conditions are then replaced by linear spring elements, and the spring constants are adjusted such that the resulting calibrated CDSM model leads to the nominal fundamental frequency of the spindle system.
The spindle frequency results are also validated against the experimental data.
The proposed method can be effectively applied to predict the vibration characteristics of spindle systems supported by bearings.
American Psychological Association (APA)
Gaber, Omar& Hashemi, S. M.. 2014. On the Free Vibration Modeling of Spindle Systems: A Calibrated Dynamic Stiffness Matrix. Shock and Vibration،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047999
Modern Language Association (MLA)
Gaber, Omar& Hashemi, S. M.. On the Free Vibration Modeling of Spindle Systems: A Calibrated Dynamic Stiffness Matrix. Shock and Vibration No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1047999
American Medical Association (AMA)
Gaber, Omar& Hashemi, S. M.. On the Free Vibration Modeling of Spindle Systems: A Calibrated Dynamic Stiffness Matrix. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1047999
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047999