Generalized Estimation of Wave Force Spectra
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 114, Issue 2
Abstract
A generalized approach is presented to estimate the crossspectral densities of the wave forces exerted on cylindrical members of offshore structures. The structural members are assumed to be inclined in space and subjected to a multidirectional wave attack. It is shown that all possible interspectral combinations of the forces can be obtained based upon the surface spectrum and rms particle velocity. Another generalized theoretical development is also presented to obtain the estimates of the wave force coefficients for the inclined cylindrical members placed in multidirectional waves. This technique is based upon the principle of comparing the observed cross‐spectral densities with their theoretical estimates; it gives the frequency‐dependent estimates along different coordinate directions. A practical application of these theoretical developments to the available field data is also discussed.
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References
1.
Borgman, L. E. (1958). “Computation of ocean wave forces on inclined cylinders.” Trans., American Geophysical Union, 39(5), 885–888.
2.
Borgman, L. E. (1967). “Spectral analysis of ocean wave forces on piling.” J. Wtrway. Harb. Div., ASCE, 93(WW2), 129–156.
3.
Borgman, L. E. (1976a). “Statistical analysis of sea waves.” Lecture Notes of the Summer Course on Coastal Wave Hydrodynamics, Massachusetts Institute of Technology, Cambridge, Mass., I, 2.1–2.38.
4.
Borgman, L. E. (1976b). “Stochastic analysis of wave forces.” Lecture Notes of the Summer Course on Coastal Wave Hydrodynamics, Massachusetts Institute of Technology, Cambridge, Mass., II, 3.2.1–3.2.6.
5.
Brown, L. J., and Borgman, L. E. (1967). “Tables of the statistical distribution of ocean wave forces and methods of estimating drag and mass coefficients.” Tech. Memo No. 24, U.S. Army Coastal Engineering Research Center. Washington, D.C.
6.
Chakrabarti, S. K., Tam, W. A., and Wolbert, A. L. (1975). “Wave forces on a randomly oriented tube.” Proceedings, 1975 Offshore Technology Conference, Houston, Tex., Vol. I, 433–148.
7.
Deo, M. C., and Narasimhan, S. (1982). “Spectral analysis of directional wave forces on inclined members of offshore structures.” Project Report, Offshore Engineering Centre, Indian Institute of Technology, Bombay, India.
8.
Geminder, R. E., and Pomonick, G. M. (1979). “The ocean test structure measurement system.” Proceedings, Conference on Civil Engineering in Oceans IV, ASCE, San Francisco, Calif. Vol. II, 611–622.
9.
Heideman, J. C., Olsen, O. A., and Johansson, P. I. (1979). “Local wave force coefficients.” Proceedings, Conference on Civil Engineering in Oceans IV, ASCE, San Francisco, Calif., Vol. II, 684–699.
10.
“Ocean test structure data interpretation.” (1978). Det Norske Veritas (Norwegian Government Design Agency), Report No. 78(531), Oslo, Norway.
11.
Yfantis, E. A., and Borgman, L. E. (1978). “A statistical theory for directional ocean wave forces on oil drilling platforms.” Statistical Lab. Report No. 132, University of Wyoming, Laramie, Wyo.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 114 • Issue 2 • March 1988
Pages: 175 - 190
Copyright
Copyright © 1988 ASCE.
History
Published online: Mar 1, 1988
Published in print: Mar 1988
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