| Chu Hongyan (初红艳),Yang Junjing,Cai Ligang.[J].高技术通讯(英文),2015,21(1):15~21 |
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| Calculation of impact factor of vibrator oscillation in offset printing based on fuzzy controller and genetic algorithm |
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| DOI：10.3772/j.issn.1006-6748.2015.01.003 |
| 中文关键词: |
| 英文关键词: offset printing, colour quality control, impact factor, fuzzy control, genetic algorithm |
| 基金项目: |
| Author Name | Affiliation | | Chu Hongyan (初红艳) | | | Yang Junjing | | | Cai Ligang | |
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| 中文摘要: |
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| 英文摘要: |
| In the inking system of an offset printing press, a vibrator roller distributes ink not only in the circumferential direction but also in the axial direction. In the control process, if ink amount is determined only by the dot area coverage without considering the impact of vibrator roller’s oscillation, the printing colour quality will be reduced. This paper describes a method of calculating the impact factor of vibrator roller’s oscillation. First, the oscillation performance is analyzed and sample data of impact factor is got. Then, a fuzzy controller used for the calculation of the impact factor is designed, and genetic algorithm is used to optimize membership functions and obtain the fuzzy control rules automatically. This fuzzy controller can be used to calculate impact factors for any printing condition, and the impact factors can be used for ink amount control in printing process and it is important for higher printing colour quality and lowering ink and paper waste. |
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