Dynamic Analysis of Squeeze Piezo Printhead Using Reduced Frequency Model

DOI

10.2991/iceeecs-16.2016.208How to use a DOI?

Keywords

Dynamic analysis; Piezo printhead; Finite Element; Viscous damping

Abstract

The dynamic characteristics of squeeze piezo printhead are studied using reduced frequency model for inks with different viscosity. While piezo inkjet mainly applies in paper printing and graphic output, many new applications have emerged in the last few years. These new applications involve inks with high viscosity. Ink viscosity is a key material parameter in printhead design. In order to take viscous damping into account, reduced frequency model is applied to model the printhead fluid cavity. Squeeze piezo printhead models with different inks (viscosity range from 20 cps to 110 cps) are built using software ANSYS15.0. Meniscus velocity and pressure at the nozzle entrance excited by frequency from 10 KHz to 200 KHz are calculated. Meantime, the velocity and pressure distribution around the first resonant frequency (which is 21250 Hz in the paper) are also calculated. The results reveal that both meniscus velocity and pressure decrease with increasing viscosity. It is notable that ink viscosity affects the printhead dynamic response significantly near resonant frequency. When the exciting frequency is far from resonant frequency, the influence of viscosity is small. The reduced frequency model is a powerful tool for the design optimization of the piezo printhead.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mingming Yang
AU  - Yanen Wang
AU  - Qinghua Wei
AU  - Xinpei Li
AU  - Weihong Chai
AU  - Shengmin Wei
PY  - 2016/12
DA  - 2016/12
TI  - Dynamic Analysis of Squeeze Piezo Printhead Using Reduced Frequency Model
BT  - Proceedings of the 2016 4th International Conference on Electrical & Electronics Engineering and Computer Science (ICEEECS 2016)
PB  - Atlantis Press
SP  - 1082
EP  - 1088
SN  - 2352-538X
UR  - https://doi.org/10.2991/iceeecs-16.2016.208
DO  - 10.2991/iceeecs-16.2016.208
ID  - Yang2016/12
ER  -