Increasing Machine Accuracy by Spatially Compensating Large Scale Machines for Use in Constructing Aerospace Structures

Paper #:
  • 2013-01-2298

Published:
  • 2013-09-17
DOI:
  • 10.4271/2013-01-2298
Citation:
Rudberg, T., "Increasing Machine Accuracy by Spatially Compensating Large Scale Machines for Use in Constructing Aerospace Structures," SAE Int. J. Aerosp. 6(1):206-222, 2013, https://doi.org/10.4271/2013-01-2298.
Author(s):
Affiliated:
Pages:
17
Abstract:
Starting in 2003 Electroimpact began development on a comprehensive kinematic and compensation software package for machines with large envelopes. The software was first implemented on Electroimpact's Automatic Fiber Placement (AFP) equipment. Implementation became almost universal by 2005. By systematically collecting tracker measurements at various machine poses and then using this software to optimize the kinematic parameters of the machine, we are able to reliably achieve machine positional accuracy of approximately 2x the uncertainty of the measurements themselves.The goal of this paper is to document some of the features of this system and show the results of compensation in the hope that this method of machine compensation or similar versions will become mainstream.
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