Optimal Simple Span Lengths for Flexible Guideways
Publication: Journal of Structural Engineering
Volume 110, Issue 1
Abstract
In the design of elevated vehicle/guideway systems several parameters play important roles in the dynamic performance. The vehicle inertial and suspension properties, guideway mass per unit length, span length, structural damping characteristics and surface finish tolerances are important factors. The two most important dynamic phenomena which require accommodation in the system design are vehicle suspension resonance and guideway beam resonance. For a given system configuration there exists an optimal span length which will yield the best dynamic performance. Furthermore, there exist critical ranges of span lengths, shorter than the optimum span, which will cause resonant guideway and vehicle vertical oscillations unless much stiffer guideway sections are used. A detailed dynamic assessment of the optimum simply supported guideway span length is presented. The effects of all parameters to the system performance are examined and critical parametric combinations are identified for a practical design example of vehicle/guideway system.
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References
1.
Doran, A. L., and Mingori, D. L., “Periodic Motion of Vehicles on Flexible Guideways,” Journal of Dynamic Systems, Measurement, and Control, ASME, Vol. 99, No. 4, Dec., 1977, pp. 268–276.
2.
Fiacco, A. V., and McCormick, G. P., Nonlinear Programming: Sequential Unconstrained Minimization Techniques, John Wiley and Sons, New York, N.Y., 1968.
3.
Gere, J. M., and Lin, Y. K., “Coupled Vibrations of Thin‐Walled Beams of Open Cross Section,” Journal of Applied Mechanics, Vol. 25, No. 3, Sept., 1958, pp. 373–378.
4.
Kavlie, D., and Moe, J., “Automated Design of Frame Structures,” Journal of the Structural Division, ASCE, Vol. 97, No. ST1, Proc. Paper 7823, Jan., 1971, pp. 33–62.
5.
Lin, T. Y., and Burns, N. H., Design of Prestressed Concrete Structures, Third Edition, John Wiley and Sons, New York, N.Y., 1981.
6.
Minnetyan, L., Nelson, R. B., and Mingori, D. L., “Dynamics and Optimal Design of AGT System,” Journal of the Structural Division, ASCE, Vol. 106, No. ST4, Proc. Paper 15365, Apr., 1980, pp. 897–914.
7.
Wilde, D. J., and Beightler, C. S., Foundations of Optimization, Prentice‐Hall, Inc., New York, N.Y., 1967.
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Copyright © 1984 ASCE.
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Published online: Jan 1, 1984
Published in print: Jan 1984
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