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http://dx.doi.org/10.7736/KSPE.2012.29.10.1062

A Computational Modeling Reflecting Static and Dynamic Characteristics of LM Bearings for Machine Tools  

Kim, Hye-Yeon (Graduate School of Mechanics and Design Engineering, Kookmin Univ.)
Jeong, Jong-Kyu (Graduate School of Mechanics and Design Engineering, Kookmin Univ.)
Won, Jong-Jin (School of Mechanical System Engineering, Kookmin Univ.)
Jeong, Jay-Il (School of Mechanical System Engineering, Kookmin Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.29, no.10, 2012 , pp. 1062-1069 More about this Journal
Abstract
This paper suggests a computational modeling to reflect static/dynamic characteristics of LM bearings. A theoretical study for modeling LM bearings is elucidated by using the Hertz contact theory, the Lagrange's equation of motion, normal mode analysis and a calculation of equivalent moment center. The complex geometry of LM bearings is replaced by a simplified model with eight springs only. The suggested model reflects static and dynamic characteristics of LM bearings without any consideration for the shape of the bed or stages on the LM bearings. The modal experimental results are compared to the simulation results with the suggested computational modeling. The difference between the experiments and simulation is calculated less than 8%.
Keywords
LM Bearing; Computational Modeling; Stiffness;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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