|
doi:10.3850/978-981-08-7723-1_P131
Generalized Taylor Series Expansion for Contour Error Compensation
Feng Huoa and Aun-Neow Poob
Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore
ahuofeng@nus.edu.sg
bmpepooan@nus.edu.sg
ABSTRACT
The model-based Taylor Series Expansion Error
Compensation (TSEEC) method has been shown to be capable of
eliminating contour errors in biaxial CNC machines. However,
it has been developed for only linear and circular contours. In
this paper, an extension of TSEEC, a generalized TSEEC or
GTSEEC, is proposed which is capable of compensating for the
contour errors of arbitrary differentiable contours. Simulation
results using linear, circular and parabolic contours are presented
which show that, with perfect knowledge of the axial dynamics,
GTSEEC can perfectly eliminate the contour errors for any
contour which is differentiable, even when there is significant
mismatch in the axes’ dynamics.
Keywords: CNC, Contour Error, Error compensation, Taylor series expansion
Back to TOC
FULL TEXT(PDF)
|