Design of Ultrasonic Vibrator for Conformal Coating Spray in LED Packaging

Abstract:

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This paper presents the design of ultrasonic vibrator utilizing a piezoelectric actuator. After describing a geometric configuration of the proposed atomizer, an analytical model of the ultrasonic atomizer is formulated by considering liquid film surface theory and wave theory. The dynamic analysis is then undertaken using a finite element analysis to determine principal longitudinal vibration modes. An optimization is performed by taking the amplitude of the tip displacement as an objective function. The fluid flow characteristics of the proposed atomizer is also analyzed under operating conditions through commercial software FLUENT.

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

715-718

DOI:

10.4028/www.scientific.net/AMR.79-82.715

Citation:

B. H. Son et al., "Design of Ultrasonic Vibrator for Conformal Coating Spray in LED Packaging ", Advanced Materials Research, Vols. 79-82, pp. 715-718, 2009

Online since:

August 2009

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Price:

$35.00

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