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Filtering by: Has journal Proceedings of the Ocean Drilling Program, Part A, Initial report Remove constraint Has journal: Proceedings of the Ocean Drilling Program, Part A, Initial report Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Coupled response of compliant offshore platforms

    Creator:
    Young, Raymond A.
    Abstract:
    A three dimensional finite element analysis is developed which is capable of simulating the coupled static and dynamic behavior of compliant ocean structures. Nonlinearities which result from large-deflection, reduced or zero stiffness in compression, and the nonconservative fluid loading are considered. The spatial variation of fluid loading is also addressed....
    Resource Type:
    Masters Thesis
    Full Text:
    of the drilling risers which connect the platform to the subsea completion template. A tension leg

  • Disposal of sandy pipeline dredge spoils by end dumping

    Creator:
    Pyles, Marvin Russell
    Abstract:
    Channel maintenance operations in the rivers and harbors of the United States annually require the disposal of over 320 million cubic meters of dredge spoils. As the availability of suitable land sites diminishes, open water disposal presents an attractive yet controversial alternative method. For open water disposal to be acceptable,...
    Resource Type:
    Masters Thesis
    Full Text:
    National Oceanic and Atmospheric Administration. It is the second and final part of a two part study of

  • Long cables under steady ocean loads with coupled tension/torsion

    Creator:
    Simpson, Randall C.
    Abstract:
    Cables used in the ocean are often constructed of helically wound wires or strands. Tension in the cable induces torque and/or rotation about its longitudinal axis. A method is presented to determine the tension, torque, location and angular orientation of points on the cable centerline, using a shooting method algorithm...
    Resource Type:
    Masters Thesis
    Full Text:
    each of the estimated initial variables in turn while holding the others constant. A computer program

  • Evaluation of ocean wave-induced liquefaction in a large scale wave flume

    Creator:
    Thielen, David Leo
    Abstract:
    Ocean waves propagating over cohesionless seabed deposits produce cyclic shear stresses within the deposit. Under certain conditions these stresses may cause a progressive build-up of pore pressure. Pore pressure accumulation can result in liquefaction or a substantial decrease in the effective stress with attendant large deformations of the seabed deposit....
    Resource Type:
    Masters Thesis
    Full Text:
    deformations of the seabed deposit. In recognition of the need to study ocean wave-induced liquefaction, a

  • Cable dynamics in an ocean environment

    Creator:
    Tuah, Hang
    Abstract:
    The nonlinear dynamic analysis of cable and cable-large body systems subject to both deterministic and non-deterministic loading is presented in this study. Nonlinearities occur due to large displacements, material nonlinearity, lack of stiffness in compression, and the non-conservative fluid loading. A finite element model is used to model the cable...
    Resource Type:
    Dissertation
    Full Text:
    loading. A finite element model is used to model the cable and rigid motions of the large body. The

  • Breaking wave problems and probabilities

    Creator:
    Yeh, Rong-chuen
    Resource Type:
    Dissertation
    Full Text:
    . This research was supported by the Office of Naval Research, Ocean Technology Program, through

  • Simulation of coastal processes in a circular wave basin

    Creator:
    Katzev, David H.
    Abstract:
    The circular wave basin provides a means of physically modeling the nearshore without the typical problems associated with end walls. Three different coastal processes were examined to demonstrate the use of a spiral wavemaker in a circular wave basin. These were longshore currents, shear waves, and groin circulation. A beach...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved:_Redacted for Privacy VV 1111;1111 lickl The circular wave basin provides a means of

  • Laboratory observations and numerical modeling of the effects of an array of wave energy converters

    Creator:
    Porter, Aaron K.
    Abstract:
    This thesis investigates the effects of wave energy converters (WECs) on water waves through the analysis of extensive laboratory experiments, as well as subsequent numerical simulations. Data for the analysis was collected during the WEC-Array Experiments performed at the O.H. Hinsdale Wave Research Laboratory at Oregon State University, under co-operation...
    Resource Type:
    Masters Thesis
    Full Text:
    converting buoys. A clear understanding of how wave energy converters (WECs) will affect the ocean

  • Stochastic analysis of a nonlinear ocean structural system

    Creator:
    Lin, Huan
    Abstract:
    Stochastic analysis procedures have been recently applied to analyze nonlinear dynamical systems. In this study, nonlinear responses, stochastic and/or chaotic, are examined and interpreted from a probabilistic perspective. A multi-point-moored ocean structural system under regular and irregular wave excitations is analytically examined via a generalized stochastic Melnikov function and Markov...
    Resource Type:
    Dissertation
    Full Text:
    of the Ocean Engineering program at Oregon State University. The financial support on this work

  • Optimizing intake screens for Ocean Thermal Energy Conversion power plants

    Creator:
    Hansen, Robert Michael
    Resource Type:
    Masters Thesis
    Full Text:
    material FP initial cost of fish protection (eaa) H difference in elevation between the ocean surface and