Fluid-structure coupling analysis and simulation of a micromachined piezo microjet

Changgeng Liu, Tianhong Cui, Zhaoying Zhou, Kun Lian, Jost Goettert

Research output: Contribution to journalConference article

7 Scopus citations

Abstract

A piezoelectric microjet has been fabricated and its working mechanism has been investigated. Considering different physical effects, the coupling models of the device are established and the key characteristics of the microjet are simulated by finite-element method. The dynamic displacement responses of the transducer under liquid-loading and unloading are calculated and compared. From numerical results, the coupling interactions dramatically damp the vibration amplitude of the transducer. However, the effects on the resonant frequencies of the structure are negligible, which will save much calculation work during further design optimization of the device. Based on the optimal design rules, the device has been fabricated and characterized.

Original languageEnglish (US)
Pages (from-to)460-465
Number of pages6
JournalSensors and Actuators, A: Physical
Volume114
Issue number2-3
DOIs
StatePublished - Sep 1 2004
EventSelected Papers from Transducers 03 - Boston, MA, United States
Duration: Jun 8 2003Jun 12 2003

Keywords

  • Coupling analysis
  • Microjet
  • Micromachining
  • Simulation

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