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A pre-compensation method of the systematic contouring error for repetitive command paths |
D. L. ZHANG( ),Y. H. CHEN,Y. P. CHEN |
| State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract For a repetitive command path, pre-compensating the contouring error by modifying the command path is practical. To obtain the pre-compensation value with better accuracy, this paper proposes the use of a back propagation neural network to extract the function of systematic contouring errors. Furthermore, by using the extracted function, the contouring error can be easily pre-compensated. The experiment results verify that the proposed compensation method can effectively reduce contouring errors.
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| Keywords
contouring error
pre-compensation
motion control system
back propagation (BP) neural network
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Corresponding Author(s):
D. L. ZHANG
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Online First Date: 25 November 2015
Issue Date: 03 December 2015
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