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Study on the dynamic characteristics of piezoelectric inkjet print head with basic excitation methods

  • Jiao Dou
  • Xing Wang
  • Kehong Li
  • Shangfei Wang
  • Shixia Yan
  • Jiangang Zhou
  • Helin ZouEmail author
Technical Paper
  • 12 Downloads

Abstract

In this paper, the dynamic characteristics of piezoelectric inkjet print head were studied by analyzing vibration mode and resonant frequency. The modal analysis was carried out by using the multiphysics simulation software COMSOL. The vibration characteristics of print head were measured. The piezoelectric actuator and print head were excited by two basic excitation methods: fast sine sweep and white noise, respectively. The speed response was measured by the laser Doppler vibrometer and the power spectrum was obtained by using MATLAB software to obtain the first-order resonant frequency. The results show that the first-order mode is most suitable for droplet formation and ejection, and the print head in the working state is indeed under the first-order mode. The fluid–solid coupling effect has great influence on the shape and amplitude of the vibration curve. The presence of liquid lower the peak of the resonant frequency and the severe liquid motion affect the number of peaks of the resonant frequency.

Notes

Acknowledgements

This work is supported by National Natural Science Foundation of China (no. 51775088).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Jiao Dou
    • 1
  • Xing Wang
    • 1
  • Kehong Li
    • 1
  • Shangfei Wang
    • 1
  • Shixia Yan
    • 1
  • Jiangang Zhou
    • 2
  • Helin Zou
    • 1
    • 3
    Email author
  1. 1.Key Laboratory for Micro/Nano Technology and Systems of Liaoning ProvinceDalian University of TechnologyDalianPeople’s Republic of China
  2. 2.College of Physics Science and TechnologyDalian UniversityDalianPeople’s Republic of China
  3. 3.Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of EducationDalian University of TechnologyDalianPeople’s Republic of China

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