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TECHNICAL BRIEFS

Evaluation of Fluid Dispensing Systems Using Axiomatic Design Principles

[+] Author and Article Information
X. B. Chen

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5A9, Canadaxbc719@mail.usask.ca

J. Kai, M. Hashemi

Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5A9, Canada

J. Mech. Des 129(6), 640-648 (Jun 08, 2006) (9 pages) doi:10.1115/1.2717233 History: Received April 11, 2006; Revised June 08, 2006

Fluid dispensing systems have been widely employed in industry, by which fluid materials are delivered in a controllable manner. Currently, various designs of fluid dispensing systems exist; however, there is a lack of evaluating and comparing these different designs on a common base. This paper presents such an evaluation by means of axiomatic design principles. In particular, existing designs of dispensing systems are illustrated as decoupled and redundant ones based on the models available in the literature; and the information content of each design is calculated by using the algorithm specially developed in this paper for redundant designs. The results from such an evaluation will not only allow users to choose the appropriate systems for given applications, but will also facilitate designers to develop new dispensing systems.

FIGURES IN THIS ARTICLE
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Copyright © 2007 by American Society of Mechanical Engineers
Topics: Fluids , Design , Pressure , Screws
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References

Figures

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Figure 1

Dispensing applications: (a) die encapsulation and (b) surface mount technology

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Figure 2

Dispensing systems: (a) time-pressure, (b) rotary-screw, and (c) positive-displacement

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Figure 3

Design ranges, system ranges, and common ranges: (a) uncoupled design and (b) decoupled design

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Figure 4

System ranges of redundant designs: (a) uncoupled design and (b) decoupled design

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Figure 5

Dispensing systems and their manipulated parameters: (a) time-pressure, (b) rotary-screw, and (c) positive-displacement

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Figure 6

Geometry of a rotary screw

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Figure 7

System ranges and design ranges of dispensing systems: (a) time-pressure, (b) rotary-screw, and (c) positive-displacement

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