A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems

Apart from improving motion accuracy, increasing productivity while reducing computer numerical control machine tools' carbon footprint is vital in the manufacturing industry. Several studies have proposed corner smoothing methods that improve cycle time for piecewise linear paths by exploiting...

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Main Authors: Enock William Nshama, Mathew Renny Msukwa, Naoki Uchiyama
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9345779/
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author Enock William Nshama
Mathew Renny Msukwa
Naoki Uchiyama
author_facet Enock William Nshama
Mathew Renny Msukwa
Naoki Uchiyama
author_sort Enock William Nshama
collection DOAJ
description Apart from improving motion accuracy, increasing productivity while reducing computer numerical control machine tools' carbon footprint is vital in the manufacturing industry. Several studies have proposed corner smoothing methods that improve cycle time for piecewise linear paths by exploiting axial limits to achieve time-optimal trajectories. Energy-saving is not considered an objective in these methods. This paper presents a method of generating Pareto optimal corner smoothing trajectories that trade-off the contradicting objectives of minimizing cycle time and energy consumption. The trajectories along linear paths and smoothed corners are respectively described using jerk limited acceleration profiles and kinematic corner smoothing methods. An energy consumption model of an industrial two-axis feed drive system is identified and used in solving the bi-objective optimization problem. From the resulting Pareto frontier, the best trade-off trajectory is selected as the one that minimizes both objectives. The proposed method's effectiveness is vindicated experimentally, where the best trade-off trajectory achieves respectively 65.87 % and 60.44 % of the time and energy-saving potentials.
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spelling doaj.art-601b3faa14e74bc39ac12638107f25f62022-12-21T22:40:08ZengIEEEIEEE Access2169-35362021-01-019235792359410.1109/ACCESS.2021.30567559345779A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive SystemsEnock William Nshama0https://orcid.org/0000-0003-1166-4745Mathew Renny Msukwa1https://orcid.org/0000-0003-4766-2151Naoki Uchiyama2Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanDepartment of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, JapanApart from improving motion accuracy, increasing productivity while reducing computer numerical control machine tools' carbon footprint is vital in the manufacturing industry. Several studies have proposed corner smoothing methods that improve cycle time for piecewise linear paths by exploiting axial limits to achieve time-optimal trajectories. Energy-saving is not considered an objective in these methods. This paper presents a method of generating Pareto optimal corner smoothing trajectories that trade-off the contradicting objectives of minimizing cycle time and energy consumption. The trajectories along linear paths and smoothed corners are respectively described using jerk limited acceleration profiles and kinematic corner smoothing methods. An energy consumption model of an industrial two-axis feed drive system is identified and used in solving the bi-objective optimization problem. From the resulting Pareto frontier, the best trade-off trajectory is selected as the one that minimizes both objectives. The proposed method's effectiveness is vindicated experimentally, where the best trade-off trajectory achieves respectively 65.87 % and 60.44 % of the time and energy-saving potentials.https://ieeexplore.ieee.org/document/9345779/Corner smoothingenergy savingfeed drives systemsmachine toolsPareto optimizationtrajectory generation
spellingShingle Enock William Nshama
Mathew Renny Msukwa
Naoki Uchiyama
A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
IEEE Access
Corner smoothing
energy saving
feed drives systems
machine tools
Pareto optimization
trajectory generation
title A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
title_full A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
title_fullStr A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
title_full_unstemmed A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
title_short A Trade-off Between Energy Saving and Cycle Time Reduction by Pareto Optimal Corner Smoothing in Industrial Feed Drive Systems
title_sort trade off between energy saving and cycle time reduction by pareto optimal corner smoothing in industrial feed drive systems
topic Corner smoothing
energy saving
feed drives systems
machine tools
Pareto optimization
trajectory generation
url https://ieeexplore.ieee.org/document/9345779/
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