电流体力学
波形
材料科学
振荡(细胞信号)
下降(电信)
电压
残余物
按需
机械工程
计算机科学
电气工程
工程类
电极
物理
算法
生物
量子力学
遗传学
多媒体
作者
Huayang Li,Weili Yang,Yongqing Duan,Wei Chen,Guannan Zhang,YongAn Huang,Zhouping Yin
标识
DOI:10.1016/j.addma.2022.102849
摘要
Electrohydrodynamic drop-on-demand (EHD DOD) printing is a promising additive manufacturing technique with both high resolution and good ink compatibility. However, it suffers from printing stability and uniformity due to the meniscus residual oscillation. Here we put forward an optimized waveform design by adding an additional voltage pulse when jetting stops and retracts to quickly eliminate the residual oscillation in EHD DOD printing. By utilizing a forced damped oscillator theoretical model, the characteristic duration time and demanded voltage value of the optimized waveform are determined. The correctness of theoretical result is proved by simulation and experiment. The proposed waveform design principle can almost completely eliminate the residual oscillation in EHD DOD printing. After optimization, the stable printing frequency achieved 1.92 times that of the unoptimized one, which promotes its application in high-resolution additive manufacturing process.
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