Quantitative Evaluation Method for Damping Capacity of Linear Rolling Bearings for Feed Drive Mechanisms

Yasunori Sakai; Masaomi Tsutsumi

doi:10.4028/www.scientific.net/KEM.523-524.656

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 523-524Quantitative Evaluation Method for Damping...

Quantitative Evaluation Method for Damping Capacity of Linear Rolling Bearings for Feed Drive Mechanisms

Abstract:

The vibration damping of guide ways is an important factor in the design of feed drive mechanisms for machine tools. Linear rolling bearings are often used as guide ways because of their low friction. However, there are no quantitative evaluation methods for its damping. Thus, this paper describes a quantitative estimation method for the stiffness and damping capacity of a linear roller guide through an experiment and a mathematical model. The stiffness and damping coefficient of the linear roller guide are identified through the frequency resonance function and mathematical model of the feed drive mechanism. It is shown that a lubricant film can effectively increase the stiffness and damping capacity of the linear roller guide.

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Periodical:

Key Engineering Materials (Volumes 523-524)

Pages:

656-661

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.523-524.656

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Online since:

November 2012

Authors:

Yasunori Sakai, Masaomi Tsutsumi

Keywords:

Damping Capacity, Feed Drive Mechanisms, Linear Rolling Bearing, Quantitative Evaluation, Vibration Characteristics

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References

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