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RESEARCH PAPERS

Computer-Aided Modeling and Manufacturing of Spherical Mechanisms via a Novel Web Tool

[+] Author and Article Information
J. Schuler, J. Ketchel

Robotics and Spatial Systems Laboratory, Department of Mechanical and Aerospace Engineering,  Florida Institute of Technology, Melbourne, FL 32901

P. Larochelle

Robotics and Spatial Systems Laboratory, Department of Mechanical and Aerospace Engineering,  Florida Institute of Technology, Melbourne, FL 32901pierrel@fit.edu

www.asp.net

www.ptc.com

http://my.fit.edu/~pierrel/software.html.

J. Comput. Inf. Sci. Eng 7(4), 339-346 (Aug 09, 2007) (8 pages) doi:10.1115/1.2795307 History: Received September 28, 2006; Revised August 09, 2007

In this paper, we present a novel web-based computer-aided modeling and manufacturing software tool for spherical mechanisms. Our purpose is to facilitate the analysis, dynamic simulation, and manufacture of one degree of freedom spherical four-bar mechanisms. First, a brief review of some of the current computer-aided design software for spherical four-bar mechanisms is presented. These software packages provide the three-dimensional visualization and computational capabilities necessary to synthesize and analyze spherical four-bar mechanisms. However, to date, no readily available and effective tools exist to aid in the modeling and manufacture of spherical mechanisms. Next, the kinematics of spherical four-bar mechanisms are reviewed as they pertain to their geometric modeling and manufacture. Finally, we present our web-based implementation of a computer-aided modeling, simulation, and manufacturing methodology for spherical four-bar mechanisms called SFBDESIGNER (for spherical four-bar designer). SFBDESIGNER facilitates the design, dynamic simulation, prototyping, and manufacture of spherical four-bar mechanisms.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

Planar mechanism design

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Figure 2

Spherical mechanism design

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Figure 3

Attaching the workpiece to the coupler

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Figure 5

Radial increment and manufacturing nomenclature

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Figure 6

The sample mechanism-part layout

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Figure 7

The assembled sample mechanism solid

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Figure 8

The SFBDESIGNER parameter interface

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Figure 9

The SFBDESIGNER output interface

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Figure 10

The fundamental mechanism

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Figure 11

Manufactured and assembled links

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Figure 12

General layout of links

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Figure 13

SFBDESIGNER Infinity fan link layout

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Figure 14

Infinity fan-top view

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