The Experts below are selected from a list of 216 Experts worldwide ranked by ideXlab platform

Robert F Handschuh - One of the best experts on this subject based on the ideXlab platform.

  • Integrated Computer Program for simulation of meshing and contact of gear drives
    Computer Methods in Applied Mechanics and Engineering, 2000
    Co-Authors: Faydor L. Litvin, Massimiliano Donno, Aoyong Peng, A. Vorontsov, Robert F Handschuh
    Abstract:

    The authors propose an integrated Tooth Contact Analysis (TCA) Computer Program for simulation of meshing and contact of gear drives that enables to determine transmission errors and shift of bearing contact for misaligned gear drives. The Developed Computer Program combines numerical solutions for the problems above and their graphical interpretation. The Program is applicable for various gear drives but needs derivation of tooth surface equations specified for the considered gear drive. The Computer Program represents a set of integrated operations such as the development of required algorithms, storing in database, copying, deleting, printing, design correction from the database, etc. The proposed Computer Program is based on application of the Java Programming language. Examples of application for a spiral bevel gear drive and a worm gear drive are provided.

Yonghwan Kim - One of the best experts on this subject based on the ideXlab platform.

  • Time domain springing analysis on a floating barge under oblique wave
    Journal of Marine Science and Technology, 2009
    Co-Authors: Yooil Kim, Kyong-hwan Kim, Yonghwan Kim
    Abstract:

    This paper studies the springing response of a flexible floating barge under an oblique wave. A time domain Rankine panel method was used to represent fluid motion surrounding a flexible seagoing vessel, and a finite element method was used for structural response. For accurate prediction of the structural response under an oblique wave, special attention was given to the structural model, such as the effect of warping distortion and bending-torsion coupling. The Vlasov assumption was followed for a deformable beam element to take into account the effect of warping distortion so that the cross section of the beam deforms out of its original plane without changing its cross-section contour. The coupled equation for both the fluid and structural domain was solved by using the implicit iterative method. A fixed point iteration with a relaxation scheme was employed in this study with the aid of the Aitken δ^2 process seeking acceleration of solution convergence. Accuracy of a Developed Computer Program was verified through the comparison with experimental work done by Remy et al. (Experimental and numerical study of the wave response of a flexible barge, Hydroelasticity in Marine Technology , Wuxi, 2006) resulting in good correspondence between the two results.

Faydor L. Litvin - One of the best experts on this subject based on the ideXlab platform.

  • Integrated Computer Program for simulation of meshing and contact of gear drives
    Computer Methods in Applied Mechanics and Engineering, 2000
    Co-Authors: Faydor L. Litvin, Massimiliano Donno, Aoyong Peng, A. Vorontsov, Robert F Handschuh
    Abstract:

    The authors propose an integrated Tooth Contact Analysis (TCA) Computer Program for simulation of meshing and contact of gear drives that enables to determine transmission errors and shift of bearing contact for misaligned gear drives. The Developed Computer Program combines numerical solutions for the problems above and their graphical interpretation. The Program is applicable for various gear drives but needs derivation of tooth surface equations specified for the considered gear drive. The Computer Program represents a set of integrated operations such as the development of required algorithms, storing in database, copying, deleting, printing, design correction from the database, etc. The proposed Computer Program is based on application of the Java Programming language. Examples of application for a spiral bevel gear drive and a worm gear drive are provided.

A. W. Saqqa - One of the best experts on this subject based on the ideXlab platform.

  • A Computer Program (WDTSRP) designed for computation of sand drift potential (DP) and plotting sand roses
    Earth Surface Processes and Landforms, 2007
    Co-Authors: Walid Saqqa, A. W. Saqqa
    Abstract:

    Wind Data Tabulator and Sand Rose Plotter (WDTSRP) is an interactive Developed Computer Program accessible for estimating sand transport potential by winds in barren sandy deserts. The Fryberger (1979) formula for determining sand drift potential (DP) was adopted to create and develop the Computer Program. WDTSRP is capable of working out weighting factors (WFs), frequency of wind speed occurrence (t), drift potential (DP), resultant drift potential (RDP) and directional variability of winds (DV) and of plotting sand roses. The Developed Computer Program is built up of a simplified system driven by a group of options and dialogue boxes that allow users to input and handle data easily and systematically. Copyright © 2006 John Wiley & Sons, Ltd.

Ivo Senjanović - One of the best experts on this subject based on the ideXlab platform.

  • A FINITE ELEMENT FORMULATION OF SHIP CROSS-SECTIONAL STIFFNESS PARAMETERS
    1993
    Co-Authors: Ivo Senjanović
    Abstract:

    Shear area, torsional warping moduli, as well as normal and shear stress flows are determined by the finite element method employing a membrane strip element, within the classical theory of thin-walled girders. Some deficiencies of the classical theory compared to the higher-order theory are pointed out. The finite element procedure and the Developed Computer Program are tested for the case of simple cross-section girders. For illustration, the midship section properties of a container ship are analysed.

  • A higher-order theory of thin-walled girders with application to ship structures
    Computers & Structures, 1992
    Co-Authors: Ivo Senjanović
    Abstract:

    Abstract A new flexural and torsion theory of thin-walled girders is presented by introducing the concept of effective stiffness and mass parameters as modal quantities. For this purpose a rather simple vibration analysis of simple supported girders is performed. Due to sinusoidal modes the problem is reduced to the girder cross-section plane. The stiffness and mass properties are determined from equivalence of girder deformation energy and inertia work, respectively and its beam idealization that results in the same natural frequencies. Therefore, this beam theory is more accurate than the classical one. For practical reasons the finite element formulation is applied, employing orthotropic strip elements that are necessary for the ship structures. The Developed Computer Program is tested in case of a square tube and a channel girder. For illustration, analysis of a container ship midship section is performed.