Quality control of card web uniformity for a vertical-type cross-lapper machine. I. Dynamic system modeling and industrial controller design |
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| Authors: | Chung-Feng Jeffrey Kuo Chia-Der Chang Rong-Zhen Chen |
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| Affiliation: | (1) Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, 106, Taiwan, Republic of China;(2) Department of Electrical Engineering, MingChi University of Technology, Taipei, 243, Taiwan, Republic of China |
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| Abstract: | This series of paper addressed the quality control of a vertical-type cross-lapper machine, which is used to produce uniform layers of fibers with suitable widths and thicknesses. The nonlinear model of the system was derived, and the corresponding state space representation was obtained. The linearized model based on the equilibrium position of the nonlinear model was generated, and the associated control property was analyzed. The high order linearized model would be reduced to a verified lower order model for control system design. The designed traditional and modern controller could make the crosslapper machine for good card web quality control. |
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| Keywords: | Lagrange’ s equation Cross-lapper machine Card web uniformity Mathematical modeling |
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