Affiliation:
1. State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China
2. State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China
Abstract
In this study, a real-time look-ahead interpolation methodology with B-spline curve fitting technique using the selected dominant points is proposed. First, an improved scheme for selecting the dominant points is proposed to reduce the numbers of control points and iterations. Second, a point-to-curve distance function is defined, and its Taylor’s expansion is investigated for curve fitting. Finally, a real-time look-ahead interpolation function, which consists of spline fitting, feedrate scheduling and parametric interpolation modules, is developed to obtain smooth tool path and feedrate profile simultaneously. Experiments on an X-Y-Z platform are conducted with a three-dimensional tool path, and the results demonstrate the feasibility and efficiency of the present algorithms.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Cited by
22 articles.
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