Planar Motion of an Articulated Tower With an Elastic Appendage

Bar-Avi, P.; Benaroya, Haym

doi:10.1006/jsvi.1996.0555

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Cited by 6 publications

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“…Bar-Avi [47] and Bar-Avi and Benaroya [48][49][50][51] developed non-linear equations of motion for an articulated tower. Their work examined both rigid-body and exible models.…”

Section: Other Relevant Studiesmentioning

confidence: 99%

Extended Hamilton's principle for fluid-structure interaction

Benaroya

Wei

Kuchnicki

et al. 2003

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…Bar-Avi [47] and Bar-Avi and Benaroya [48][49][50][51] developed non-linear equations of motion for an articulated tower. Their work examined both rigid-body and exible models.…”

Section: Other Relevant Studiesmentioning

confidence: 99%

Extended Hamilton's principle for fluid-structure interaction

Benaroya

Wei

Kuchnicki

et al. 2003

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…Past studies were mainly focused on the dynamic analysis of single-hinged articulated towers (Bar-Avi and Benaroya, 1996a; Bar et al, 1997; Datta and Jain, 1990). The influence of non-collinear wave and currents on an articulated tower has been studied by Kirk and Jain (1981) and Bar-Avi and Benaroya (1996b) with varying results.…”

Section: Introductionmentioning

confidence: 99%

Effect of current on the dynamic response of a bi-articulated offshore tower

Zaheer

Islam

2020

Advances in Structural Engineering

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Wind and wave loadings have a predominant role in the design of articulated offshore towers for its successful service and survival. Such towers are very sensitive to the dynamic effect of environmental loads. The compliant nature of these towers with environmental loads introduces geometric nonlinearity due to large displacements, which becomes an important consideration in the analysis of these towers. This article deals with the dynamic response of a bi-articulated offshore tower to wind, wave, and current forces. The exposed portion of the tower is subjected to the action of wind, while the submerged portion is acted upon by random wave and current forces. Wind load is modeled by Ochi and Shin spectrum, while the wave load is characterized by Pierson–Moskowitz spectrum. The nonlinear dynamic equations of motion are derived by Hamilton’s principle. Response of the tower is determined by a time domain iterative (Wilson-θ) method. Power spectral density of important parameters such as surge, tilting motion, hinge shear, and bending moment are presented under high and low sea states. It is observed that response of tower due to current modifies the peak energy of power spectral density functions.

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