Search Constraints

Start Over
Filtering by: Creator Solomon, E. A. Remove constraint Creator: Solomon, E. A. Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

Search Results

  • Large–Scale Laboratory Experiment and Numerical Simulation of Tsunami Forces on a Bridge Deck

    Creator:
    Xiang, Tao
    Abstract:
    The fluid impact forces on a bridge superstructure in horizontal and vertical directions due to tsunamis represented by solitary waves are investigated through a large-scale laboratory experiment and numerical simulations. The experiment is conducted in a two-dimensional wave basin using a 1:5 scaled reinforced concrete bridge deck model tested under...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Solomon C. Yim Abstract: The fluid impact forces on a bridge superstructure in horizontal

  • Contact and impact dynamic modeling capabilities of LS-DYNA for fluid-structure interaction problems

    Creator:
    Challa, Ravi
    Abstract:
    Fluid-structure interaction (FSI) is a very interesting and challenging multi-disciplinary field involving interaction of a movable or deformable structure with an internal or surrounding fluid flow. FSI plays a pivotal role in many different types of real-world situations and practical engineering applications involving large structural deformation and material or geometric...
    Resource Type:
    Masters Thesis
    Full Text:
    (Sa/Sec) P e a k A c c e le ra ti o n (m /s2 ) a n d P e a k P re ss u re ( b ar

  • Hydroelastic modeling of a wave energy converter using the arbitrary Lagrangian-Eulerian finite element method in LS-DYNA

    Creator:
    Meicke, Stephen A.
    Abstract:
    This thesis investigates the applicability of the finite element method to model wave energy converter (WEC) hydroelasticity using LS-DYNA. The proposed methodology uses the Arbitrary Lagrangian-Eulerian formulation to model Fluid-Structure Interaction (FSI) between the WEC and the fluid elements. This formulation allows for time-domain modeling of higher order effects such...
    Resource Type:
    Masters Thesis
    Full Text:
    ................................................................................... 72 E.1 – Creating a Revolute Joint

  • Modelling, validation and simulation of multi-degree-of-freedom nonlinear stochastic barge motions

    Creator:
    Bartel, Warren A.
    Abstract:
    Recent developments in estimation of the survivability of a U.S. Navy transport barge in random seas are extended to improve accuracy. The single Degree-of-Freedom (DOF) model of a extreme roll response of a barge used in previous research is replaced by a 3-DOF roll-heave-sway model to include linear and nonlinear...
    Resource Type:
    Masters Thesis
    Full Text:
    : Solomon C. . Yim Recent developments in estimation of the survivability of a U.S. Navy transport barge

  • Evaluation of the performance of a taut-moored dual-body direct-drive waveenergy converter through numerical modeling and physical testing

    Creator:
    Elwood, David E.
    Abstract:
    With energy prices rising and increasing concern about the influence of fossil fuels on climate change, wave energy systems are on the verge of commercial implementation. These first generation wave energy converters utilize either pneumatics or hydraulics to convert the mechanical energy of waves into electricity. For the last several...
    Resource Type:
    Masters Thesis
    Full Text:
    Numerical Modeling and Physical Testing by David E. Elwood A

  • An experimental study and a three-dimensional numerical wave basin model of solitary wave impact on a vertical cylinder

    Creator:
    Zhang, Wenbin
    Abstract:
    An experiment on solitary wave impact on a vertical cylinder was conducted in the three-dimensional wave basin at the Oregon State University Hinsdale Wave Research Laboratory. The cylinder was designed using mechanic principles and finite element analysis techniques to enable accurate measurement of horizontal force and overturning moment. Video data...
    Resource Type:
    Masters Thesis
    Full Text:
    on A Vertical Cylinder Abstract approved: Solomon C. Yim An experiment on

  • Development of a guideline for estimating tsunami forces on bridge superstructures

    Creator:
    Boon-intra, Sutaporn
    Abstract:
    Infrastructures along the Oregon Coast are vulnerable to seismic events in the Cascadia Subduction Zone that could generate large tsunamis. Bridges along the coast are an important part of the transportation and lifeline system in the area. The major damages on these bridges due to earthquake and/or tsunami would result...
    Resource Type:
    Masters Thesis
    Full Text:
    thesis possible. I would like to thank Dr. Solomon C. Yim for being a great mentor and advisor during

  • Organizational factors in the reliability assessment of offshore systems

    Creator:
    Biondi, Esteban L.
    Abstract:
    The reliability of ocean systems is dependent on organizational factors. It has been shown that low probability / high consequence system failures are overwhelmingly induced by organizational factors. However, no methodology is yet widely accepted for the evaluation of this phenomenon or its accurate quantification. A qualitative complementary approach is...
    Resource Type:
    Masters Thesis
    Full Text:
    : Organizational Factors in the Reliability Assessment of Offshore Systeii, Abstract approved: Solomon C. S. Yim

  • Stochastic analysis of the nonlinear response transition behavior of an ocean system

    Creator:
    Yuk, Dongjun
    Abstract:
    The nonlinear response of an ocean system subjected to random excitations can exhibit very complex dynamic behaviors including jump phenomena and coexistence of attractors. In this study, the stochastic system response behavior of a simple (Duffing) oscillator under narrow-band random excitations is first examined in the subharmonic resonance region. A...
    Resource Type:
    Masters Thesis
    Full Text:
    expressed as 20 4 p(A) A peA ID,,' ) = ,A E D" (2.14) fp(A)dA IJ/ where, p(A) is a Rayleigh

  • Chaotic response and stability of offshore equipment

    Creator:
    Lin, Huan
    Abstract:
    This investigation deals with the chaotic rocking response and overturning stability of offshore equipment subjected to base excitations due to wave-induced motions of the supporting compliant offshore structural system. The equipment compliant structural system is modelled as a free-standing rigid object subjected to horizontal and vertical base accelerations. Three of...
    Resource Type:
    Masters Thesis
    Full Text:
    object a (MgR/Io)1/2 A/(1+ nx2) 6 e eb 6 e A T T nX nY (1) cAy rotation angle of rocking