Dynamic characteristics of a new jetting dispenser driven by piezostack actuator

Title
Dynamic characteristics of a new jetting dispenser driven by piezostack actuator
Authors
Han, Y.M.; Choi, S.B.; Hong, S.M.
Keywords
dispensing system, dynamic analysis, fluid-solid interaction
Issue Date
2008-07
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
This paper proposes a new type of jetting dispenser driven by a piezostack actuator. After describing structural components of the dispensing mechanism and operating principle, a dynamic model of the dispenser is analytically formulated by considering dynamic behaviors of the piezostack-piston head and the ball-needle. The inelastic impact between the ball-needle and the ball-seat during dispensing process is also considered in the modeling. An analytical fluid-solid interaction model is then derived by integrating the dynamic behavior of the dispensing fluid. Dispensing performances such as dot size and flow rate are evaluated under various frequencies and amplitudes of the sinusoidal driving voltage applied to the piezostack actuator.
URI
http://dspace.inha.ac.kr/handle/10505/1846
ISSN
1521-334X
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
Files in This Item:
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