Civil and Environmental Engineering at Duke

publications by James F. Wilson.


Papers Published

  1. Wilson, James F. and Carrato, Peter J., DYNAMICALLY OPTIMAL GUIDEWAYS BASED ON MULTIPLE DISTRIBUTED PARAMETERS., Journal of Advanced Transportation, vol. 20 no. 3 (1986), pp. 203 - 221 .
    (last updated on 2007/04/09)

    Abstract:
    The present study is concerned with the effects on guideway performance of three distributed span parameters: support spacing, unitmass and bending stiffness. As in previous studies, the vehicle is simulated as a constant point load at constant speed along a multiply supported, horizontal, straight, elastic beam. The measure of span performance is phi , defined as a linear combination of four weighted, dimensionless span characteristics: the peak dynamic stress; the peak live load stress difference between span segments; the rms vertical deflection under the transit point load; and the total span mass. For a given range of the three distributed span parameters and a fixed vehicle speed parameter, a minimum phi is sought. A continuous, three span-configuration is chosen to illustrate the direct-search methodology for evaluating the relative performance of alternative designs. An analysis of the dynamics of the system is followed by its experimental validation.

    Keywords:
    RAPID TRANSIT;COMPUTER SIMULATION;DYNAMICS - Analysis;VEHICLES;BEAMS AND GIRDERS;

 

Department of Civil and Environmental Engineering | Pratt School of Engineering | Duke University
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