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Filtering by: Subject Offshore structures -- Hydrodynamics Remove constraint Subject: Offshore structures -- Hydrodynamics

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Hydrodynamic forces on a horizontal cylinder under waves and current

Creator:

Teng, Chung-chu

Abstract:

By assuming the linear superposition principle to be valid, the hydrodynamic forces on a horizontal cylinder under waves and current are examined. In this study, towing a cylinder in waves is used to simulate a cylinder under waves and current. The experimental technique is proved valid through theoretical considerations and...

Resource Type:

Masters Thesis
Response of guyed offshore towers to stochastic loads in the presence of steady current

Creator:

Brynjolfsson, Sigurdur

Abstract:

The validity of the widely used stochastic linearization method for analysing the response of guyed towers to stochastic loads is investigated. The governing equations of a guyed tower have two main sources of nonlinearities, fluid-structure interaction and the restoring force of the cables. In this study, two models are considered....

Resource Type:

Dissertation
Nonlinear oscillations, bifurcations and chaos in ocean mooring systems

Creator:

Gottlieb, Oded

Abstract:

Complex nonlinear and chaotic responses have been recently observed in various compliant ocean systems. These systems are characterized by a nonlinear mooring restoring force and a coupled fluid-structure interaction exciting force. A general class of ocean mooring system models is formulated by incorporating a variable mooring configuration and the exact...

Resource Type:

Dissertation
Deterministic and stochastic control of nonlinear oscillations in ocean structural systems

Creator:

King, Paul E.

Abstract:

Complex oscillations including chaotic motions have been identified in off-shore and submerged mooring systems characterized by nonlinear fluid-structure interactions and restoring forces. In this paper, a means of controlling these nonlinear oscillations is addressed. When applied, the controller is able to drive the system to periodic oscillations of arbitrary periodicity....

Resource Type:

Dissertation

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Academic Affiliation

Civil Engineering2
Civil, Construction, and Environmental Engineering1
Mechanical Engineering1

Advisor

Yim, Solomon C. S.2
Kennedy, Timothy C.1
Leonard, John W.1
Nath, John H.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1983 to 2006

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Committee Member

Brown, George W.1
Guenther, Ron B.1
Hudspeth, Robert T.1
Kennedy, Timothy C.1
Leonard, John W.1
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Creator

Brynjolfsson, Sigurdur1
Gottlieb, Oded1
King, Paul E.1
Teng, Chung Chu1

Date

Date range begin – Date range end

Current results range from 1983 to 2006

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Decade

2000-20091
1990-19991
1980-19892

Degree Field

Civil Engineering3
Mechanical Engineering1

Degree Level

Doctoral3
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)3
Master of Ocean Engineering (M.Oc.E.)1

Language

English [eng]4

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No4

Resource Type

Dissertation3
Masters Thesis1

Rights Statement

Copyright Not Evaluated3
In Copyright1

Subject

Offshore structures -- Hydrodynamics[remove]4
Nonlinear oscillations2
Bifurcation theory -- Mathematical models1
Chaotic behavior in systems1
Chaotic behavior in systems -- Mathematical models1
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