Abstract
In recent years, inkjet technology has played an important role in industrial materials printing and various sensors fabrication, but the mechanisms of the inkjet print head should be researched more elaborately. The steady state deformation analysis of a tubular piezoelectric print head, which can be classified as a plane strain problem because the radii of the tubes are considerably smaller than the lengths, is discussed in this paper. The geometric structure and the boundary conditions are all axisymmetric, so a one-dimensional mathematical model is constructed. By solving the model, the deformation field and stress field, as well as the electric potential distribution of the piezoelectric tube and glass tube, are obtained. The results show that the deformations are on the nanometer scale, the hoop stress is larger than the radial stress on the whole, and the potential is not linearly distributed along the radial direction. An experiment is designed to validate these computations. A discussion of the effect of the tubes’ thicknesses on the system deformation status is provided.
Highlights
Ink jet technology has been widely used in the fabrication of integrated circuits (ICs) [1], polymer light emitting displays [2], sample preparation [3], microelectromechanical systems (MEMS) [4], cell printing [5,6], and the fabrication of different sensors [7,8,9]
This paper studies the action mechanism of a tubular piezoelectric print head, which is typically represented by the mechanical device designed by Zoltan [10]
The steady state response of a tubular piezoelectric print head under the excitation of electric voltage, together with the effect of the tubes’. Wall thicknesses on their deformation and stress voltage, together togetherwith withthethe effect of tubes’
Summary
Ink jet technology has been widely used in the fabrication of integrated circuits (ICs) [1], polymer light emitting displays [2], sample preparation [3], microelectromechanical systems (MEMS) [4], cell printing [5,6], and the fabrication of different sensors [7,8,9]. The analytical axial velocity history was used as the initial condition when doing his numerical simulation of the jetting and droplet formation process Fabrication effects, such as the eccentricity alignment and the configuration of the electrode layer on the calculation results based on the model proposed, was discussed. Aimed at at the the above above process, process, this this paper paper analyzes analyzes the the deformation deformation and and stress stress statuses statuses of of piezoelectric piezoelectric and and glass glass tubes tubes after after the the input input of of electric understand thethe action mechanism of the liquid jet electric voltage. Theobtained obtainedresults resultscould couldhelp helpusus understand action mechanism of the liquid process, determine the deformation and stress statuses when an electric input, is and guideand us jet process, determine the deformation and stress statuses when an voltage electric is voltage input, to design a proper piezoelectric print head.
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