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Enhanced feedrate scheduling algorithm for CNC system with acceleration look-ahead and sin2 acceleration profile

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Abstract

The smooth motion profile with less oscillation ensures the processing quality of machined parts. Meanwhile, keeping feedrate under its limit as high as possible can reduce the processing time and save cost. In this paper, a novel feedrate scheduling algorithm with acceleration lookahead is presented. Through the sin2 acceleration profile, the continuity of jerk can be guaranteed. Based on the 4-phase profile, the look-ahead function is also extended for acceleration, which avoids the frequent changing of acceleration when scheduling short segments. On a designed benchmark, the effectiveness of the proposed algorithm is verified and compared with the state-of-the-art. The algorithm is implemented on a laser patterning machine with the galvanometric scanners as its feed drive system. The results confirm the effectiveness of the presented scheduling method.

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Funding

This research is financially supported by the National Natural Science Foundation of China under grant 51975461, Natural Science Foundation of Jiangsu Province under No. BK20190217, and the Department of Science and Technology of Shaanxi Province under grant 2019ZDLGY14-07.

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Authors and Affiliations

  1. State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, China

    Zheng Sun, Xintian Wang, Bin Liu, Jiexin Lu & Xuesong Mei

  2. Suzhou Institute, Xi’an Jiaotong University, Suzhou, China

    Zheng Sun & Bin Liu

  3. GSK CNC Equipment Co. Ltd, Guangzhou, China

    Yi Zhou

Authors
  1. Zheng Sun
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  2. Xintian Wang
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  3. Bin Liu
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  4. Jiexin Lu
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  5. Xuesong Mei
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  6. Yi Zhou
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Contributions

Zheng Sun: methodology, writing, funding acquisition; Xintian Wang: software, formal analysis; Bin Liu: validation, project administration, funding acquisition; Jiexin Lu: formal analysis; Xuesong Mei: conceptualization, supervision; Yi Zhou: software, validation.

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Correspondence to Bin Liu.

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Sun, Z., Wang, X., Liu, B. et al. Enhanced feedrate scheduling algorithm for CNC system with acceleration look-ahead and sin2 acceleration profile. Int J Adv Manuf Technol 119, 217–231 (2022). https://doi.org/10.1007/s00170-021-08245-2

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