121–140 of 397 hits
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    Numerical and experimental investigation on the performance of three newly designed 100 kW-class tidal current turbines

    Song, Museok / Kim, Moon-Chan / Do, In-Rok et al. | Online Contents | 2012
    performance of the turbines is tested in a towing tank with 700 mm models. The scale problem is carefully investigated and the measurements are ...

    Mean flow characteristics of two-dimensional wings in ground effect

    Jung, Jae / Yoon, Hyun Sik / Chun, Ho Hwan et al. | Online Contents | 2012
    attack ( 0° ≤α ≤10° ) in the prestall regime at a Reynolds number ( Re ) of 2×106 based on free stream velocity U∞ and the chord length. As the ...

    Free vibration analysis of rectangular plate with arbitrary edge constraints using characteristic orthogonal polynomials in assumed mode method

    Kim, Kookhyun / Kim, Byung-Hee / Choi, Tae-Muk et al. | Online Contents | 2012
    with arbitrary edge constraints. In the presented method, natural frequencies and their mode shapes of the plate are calculated by solving an ...

    Implementation of the submarine diving simulation in a distributed environment

    Ha, Sol / Cha, Ju-Hwan / Roh, Myung-Il et al. | Online Contents | 2012
    ABSTRACT To implement a combined discrete event and discrete time simulation such as submarine diving simulation in a distributed ...

    Endplate effect on aerodynamic characteristics of threedimensional wings in close free surface proximity

    Jung, Jae Hwan / Kim, Mi Jeong / Yoon, Hyun Sik et al. | Online Contents | 2012
    ABSTRACT We investigated the aerodynamic characteristics of a three-dimensional (3D) wing with an endplate in the vicinity of the free ...

    Study on the pressure self-adaptive water-tight junction box in underwater vehicle

    Huang, Haocai / Ye, Yanying / Leng, Jianxing et al. | Online Contents | 2012
    ABSTRACT Underwater vehicles play a very important role in underwater engineering. Water-tight junction box (WJB) is one of the key ...

    Numerical study of hydrodynamic interaction on a vessel in restricted waterways

    Lee, Chun-Ki | Online Contents | 2012
    features of the hydrodynamic interaction acting on a slowly moving vessel in the proximity of a wedge-shaped bank are described and illustrated ...

    Estimation of geometry-based manufacturing cost of complex offshore structures in early design stage

    Nam, Jong-Ho / Sohn, Sehwan / Singer, David J. | Online Contents | 2012
    ABSTRACT A scalar metric for the assessment of hull surface producibility was known to be useful in estimating the complexity of a hull ...

    Two-dimensional modeling of stepped planing hulls with open and pressurized air cavities

    Matveev, Konstantin I. | Online Contents | 2012
    deformations, wetted hull lengths, and pressure distribution are calculated at given hull attitude and Froude number. Pressurized air cavities that ...

    Hydrodynamic design of an underwater hull cleaning robot and its evaluation

    Lee, Man Hyung / Park, Yu Dark / Park, Hyung Gyu et al. | Online Contents | 2012
    and economical. This paper presents a hydrodynamic design of an underwater cleaning robot and its evaluation for an underwater ship hull ...

    The implementation of the integrated design process in the hole-plan system

    Ruy, Won-Sun / Ko, Dae-Eun / Yang, Young-Soon | Online Contents | 2012
    ABSTRACT All current shipyards are using the customized CAD/CAM programs in order to improve the design quality and increase the design ...

    Damage level prediction of non-reshaped berm breakwater using ANN, SVM and ANFIS models

    Mandal, Sukomal / Rao, Subba / N., Harish | Online Contents | 2012
    and safe design of structure. In the present study experimental data for non-reshaped berm breakwater are collected from Marine Structures ...

    A simplified geometric stiffness in stability analysis of thin-walled structures by the finite element method

    Senjanović, Ivo / Vladimir, Nikola / Cho, Dae-Seung | Online Contents | 2012
    deflection. In this paper the same approach is used for construction of simplified geometric stiffness matrix. Beam element, and triangular and ...

    Psycho-acoustic evaluation of the indoor noise in cabins of a naval vessel using a back-propagation neural network algorithm

    Han, Hyung-Suk | Online Contents | 2012
    the naval vessel was performed in a laboratory. The objective of this paper is to develop a single index of “Loudness” and “Annoyance” for ...

    The development of internet based ship design support system for small and medium sized shipyards

    Shin, Sung-Chul / Lee, Soon-Sup / Kang, Dong-Hoon et al. | Online Contents | 2012
    internet technology and concurrent engineering concept. The system is designed from the user requirements. Consequently, standardized development ...

    Experimental investigation on stern-boat deployment system and operability for Korean coast guard ship

    Chun, Ho Hwan / Kim, Moon Chan / Lee, Inwon et al. | Online Contents | 2012
    stern ramp. The safe recovery course was proposed to maintain the directional control of RHIB and to reduce the combined hydrodynamic effect in ...

    On the energy economics of air lubrication drag reduction

    Mäkiharju, Simo A. / Perlin, Marc / Ceccio, Steven L. | Online Contents | 2012
    large ocean going and U.S. Great Lakes ships, by establishing the basic energy economic calculations and presenting results for a hypothetical ...

    A study on ship automatic berthing with assistance of auxiliary devices

    Tran, Van Luong / Im, Namkyun | Online Contents | 2012
    attractive options. In a marine context, the berthing maneuver is a complicated procedure in which both human experience and intensive control ...

    Shape optimization of an autonomous underwater vehicle with a ducted propeller using computational fluid dynamics analysis

    Joung, Tae-Hwan / Sammut, Karl / He, Fangpo et al. | Online Contents | 2012
    resistance of an AUV is an important factor in determining the power requirements and range of the vehicle. This paper describes a procedure using ...

    Experimental investigation of supercavitating flows

    Ahn, Byoung-Kwon / Lee, Tae-Kwon / Kim, Hyoung-Tae et al. | Online Contents | 2012
    ABSTRACT When the object is traveling in the water at tremendously high speeds, the cavity forms and grows up at a fore part of the object ...