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  • 标题:Hybrid Continuous-Discrete Repetitive Process Modeling of Meniscus Dynamics in Electrohydrodynamic Jet Printing
  • 本地全文:下载
  • 作者:Mamadou Diagne ; Patrick M. Sammons ; David Hoelzle
  • 期刊名称:IFAC PapersOnLine
  • 印刷版ISSN:2405-8963
  • 出版年度:2017
  • 卷号:50
  • 期号:1
  • 页码:13414-13419
  • DOI:10.1016/j.ifacol.2017.08.2285
  • 语种:English
  • 出版社:Elsevier
  • 摘要:AbstractElectrohydrodynamic jet (E-Jet) printing is a micro-/nano-manufacturing process in which a liquid ink is jetted from a micron-scale nozzle through the actuation of an electric field applied between the nozzle and a grounded substrate. Because the jetting behavior is driven by electrohydrodynamics and is capable of producing printed features with length scales ranging from nanometers to microns, E-Jet printing is a promising manufacturing tool for printed electronics and bioengineering applications. However, a significant hurdle in adoption of E-Jet printing for these applications is the lack of appropriate process modeling and control methodologies to improve printing performance and robustness to process disturbances. Here, a model describing the dynamics of the meniscus and the onset of jetting in E-Jet printing is given. The model is posed as a repetitive hybrid continuous-discrete process where the continuous meniscus dynamics are interrupted by the discrete jetting behavior and are dependent on previous trial information. The developed model is compared to a set of experimental results and the model exhibits good quantitative agreement with time-to-jetting from a step voltage input and good qualitative agreement in the dynamic response after jetting has ceased.
  • 关键词:KeywordsModeling of manufacturing operationsHybridswitched systems modelingElectrohydrodynamic jettingRepetitive processes
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