Yanan Li 83750.pdf (1.22 MB)
S-model speed planning of NURBS curve based on uniaxial performance limitation
journal contribution
posted on 2023-06-09, 17:48 authored by Jiangang Li, Ye Liu, Yanan LiYanan Li, Ganggang ZhongAs more complex curves are used in current productions, curve speed planning has become a key technique to overcome the bottleneck of high-speed and high-precision computerized numerical control (CNC) systems. This paper first establishes the model of particle velocity, acceleration and jerk in Cartesian coordinate system, and then improves the uniaxial performance limit algorithm.We set up a real-time speed planning process of spline curves, design a S-model look-ahead algorithm, simplify the S-model speed planning algorithm, and achieve real-time non-uniform rational B-splines (NUBRS) curve S-model speed planning based on uniaxial performance limitation. Simulation results show that all the actual interpolation velocity, acceleration and jerk under the proposed method meet the preset single-axis limit. Experimental results show that the tracking performance under the proposed method has been significantly improved compared with that under the small line segments method. Compared with the NUBRS curve trapezoidal model speed planning, the vibration spikes during machining can be eliminated.
History
Publication status
- Published
File Version
- Accepted version
Journal
IEEE AccessISSN
2169-3536Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Volume
7Page range
60837-60849Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Dynamics, Control and Vehicle Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2019-05-15First Open Access (FOA) Date
2019-05-15First Compliant Deposit (FCD) Date
2019-05-13Usage metrics
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