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RESEARCH PAPERS: Design Automation

Designing NURBS Cam Profiles Using Trigonometric Splines

[+] Author and Article Information
M. Neamtu, L. L. Schumaker

Department of Mathematics, Vanderbilt University, Nashville, TN 37240

H. Pottmann

Institute of Geometry, Technical University of Vienna, Wiedner Hauptstraße 8-10, A-1040 Vienna

J. Mech. Des 120(2), 175-180 (Jun 01, 1998) (6 pages) doi:10.1115/1.2826956 History: Received March 01, 1998; Revised April 01, 1998; Online December 11, 2007

Abstract

We show how to design cam profiles using NURBS curves whose support functions are appropriately scaled trigonometric splines. In particular, we discuss the design of cams with various side conditions of practical interest, such as interpolation conditions, constant diameter, minimal acceleration or jerk, and constant dwells. In contrast to general polynomial curves, these NURBS curves have the useful property that their offsets are of the same type, and hence also have an exact NURBS representation.

Copyright © 1998 by The American Society of Mechanical Engineers
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