ESTIMATION OF WAVE HYDRODYNAMIC FORCES ON MARINE SLENDER BODIES USING SI METHOD

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NAGHIPOUR M.; KETABDARI MOHAMMAD JAVAD; VALI NATAJ M.

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Journal: JOURNAL OF MARINE ENGINEERING Year:2009 | Volume:4 | Issue:8 Page(s): 35-46

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Title

ESTIMATION OF WAVE HYDRODYNAMIC FORCES ON MARINE SLENDER BODIES USING SI METHOD

Author(s)

NAGHIPOUR M. | KETABDARI MOHAMMAD JAVAD | VALI NATAJ M. | Issue Writer Certificate

Keywords

MORISON'S EQUATIONQ2

HYDRODYNAMIC COEFFICIENTSQ2

FREQUENCY DOMAIN ANALYSISQ3

SI METHODQ3

Abstract

Waves exert one of the most important forces on offshore and coastal structures as well as floating vessels. However, due to the random nature of waves, estimation of their hydrodynamic forces on marine structures is very complicated. Morison's semi-empirical model is one of the models capable of estimating wave forces on slender cylindrical elements of marine structures. In this research using large scale experimental results in wave flume, the effect of random waves on rough vertical cylinders will be considered. Water particle kinematics was estimated using non-linear Stokes fifth order theory (i.e. Fenton Method). Finally, System Identification method known as SI METHOD was utilized in order to determine HYDRODYNAMIC COEFFICIENTS in MORISON'S EQUATION. Comparison of measured and estimated hydrodynamic force by MORISON'S EQUATION showed that although MORISON'S EQUATION is most applicable and available routine for estimation of wave forces on slender cylindrical elements, its errors in safe side is considerable.

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APA: Copy

NAGHIPOUR, M., KETABDARI, MOHAMMAD JAVAD, & VALI NATAJ, M.. (2009). ESTIMATION OF WAVE HYDRODYNAMIC FORCES ON MARINE SLENDER BODIES USING SI METHOD. JOURNAL OF MARINE ENGINEERING, 4(8), 35-46. SID. https://sid.ir/paper/60833/en

Vancouver: Copy

NAGHIPOUR M., KETABDARI MOHAMMAD JAVAD, VALI NATAJ M.. ESTIMATION OF WAVE HYDRODYNAMIC FORCES ON MARINE SLENDER BODIES USING SI METHOD. JOURNAL OF MARINE ENGINEERING[Internet]. 2009;4(8):35-46. Available from: https://sid.ir/paper/60833/en

IEEE: Copy

M. NAGHIPOUR, MOHAMMAD JAVAD KETABDARI, and M. VALI NATAJ, “ESTIMATION OF WAVE HYDRODYNAMIC FORCES ON MARINE SLENDER BODIES USING SI METHOD,” JOURNAL OF MARINE ENGINEERING, vol. 4, no. 8, pp. 35–46, 2009, [Online]. Available: https://sid.ir/paper/60833/en

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