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TECHNICAL PAPERS

Dynamic Modeling for Machine Tool Thermal Error Compensation

[+] Author and Article Information
Hong Yang, Jun Ni

S.M. Wu Manufacturing Research Center, University of Michigan, Ann Arbor, MI 48109

J. Manuf. Sci. Eng 125(2), 245-254 (Apr 15, 2003) (10 pages) doi:10.1115/1.1557296 History: Received February 01, 2001; Revised November 01, 2002; Online April 15, 2003
Copyright © 2003 by ASME
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References

Figures

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Pseudo-hysteresis effect of thermoelastic deformation (‘[[dashed_line]]’ warm up stage; ‘–’ cool down stage)
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The spatial relationship of temperature distribution along the spindle
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The partition of the main model into submodels
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Finite element model of the spindle
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Heat flux input data for modeling and model cross validation
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Input and output modeling data for 1-D spindle thermal deformation
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Thermal deformation vs. temperature relationship for the modeling data
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Thermal deformation response for the modeling data
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Thermal deformation vs. temperature—model cross validation
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Thermal deformation response for the model validation data
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2-D FEA model of the machine structure
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Heat flux input data of three heat sources for (a) modeling (b) model validation
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Three point temperature responses and two direction thermal deformations
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Simulated system output and model estimation output for X and Y directional thermal drifts using modeling data: (a) OE 220 model (b) stepwise linear regression model. (‘[[dotted_line]]’ is the simulated system output; ‘–’ is the model output)
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Simulated system output and model estimation output for X and Y directional thermal drifts using model validation data: (a) OE 220 model (b) stepwise linear regression model. (‘[[dotted_line]]’ is the simulated system output; ‘–’ is the model output)
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Scheme of spindle thermal experiment setup
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Spindle speed, temperature measurements and spindle elongation diagrams for: (a) modeling data, (b) model validation data #1, (c) model validation data #2
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Comparison of measured system output and OE250 model output for modeling data and model validation data

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