DETRANS: Efficient Algorithm for Static Analysis of Determinate Trusses
Publication: Journal of Aerospace Engineering
Volume 4, Issue 3
Abstract
A fast and storage‐efficient algorithm for the computation of the static response of determinate trusses to nodal loading is proposed. In terms of the number of bars in the truss, M; the algorithm is of computational complexity and requires only primary storage, for M linearly independent loadings. The motivation to develop a fast algorithm stems from the need for such an algorithm in the fast and efficient control of adaptive space cranes. The algorithm is based on the well‐known method of joints. Although the traditional method of joints computes response only for simple determinate trusses, the algorithm includes the extension for the compound and complex determinate trusses by generalizing the Henneberg method. It has been coded in FORTRAN77 into a computer program called DETRANS (Determinate Truss Analysis System). The theoretical basis of the algorithm, the data structures used in the program, and the computational complexity analysis are given.
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References
1.
Norris, C. H., Wilbur, J. B., and Utku, S. (1976). Elementary structural analysis, 3rd Ed., McGraw‐Hill, Inc., New York, N.Y.
2.
Ramesh, A. V., Utku, S., and Lu, L. Y. (1989). “DETRANS: A fast and storage efficient algorithm for static analysis of determinate trusses.” JPL Report D‐6194, Jet Propulsion Lab., Calif.
3.
Ramesh, A. V., and Utku, S. (1990). “Geometry control in adaptive truss structures,” presented in 1990 ASME International Computers in Engineering Conference and Exposition, August 5–9, Boston, Mass., American Society of Mech. Engrs., New York, N.Y.
4.
Utku, S., Ramesh, A. V., Das, S. K., Wada, B. K., and Chen, G. S. (1989). “Control of a slow moving space crane as an adaptive structure.” Paper 89‐1286, Proc. AIAA/ASME/ASCE/AHS 30th Structural Dynamics and Materials Conference, AIAA, Washington, D.C.
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Copyright © 1991 ASCE.
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Published online: Jul 1, 1991
Published in print: Jul 1991
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