... intelligence evaluation shipbuilding application ship production marine transportation operation cloud engineering laser scanner information journal measurement deformation registration assembly assembly sequence accuracy month 2024 software shipbuilding Journal of Ship Production...

... the previous process will be propagated to the current process and coupled with the deviation in the current process, thereby affecting the accuracy of the product. Hence, the product must be repaired to satisfy the design requirements (Takechi et al. 1998). This will prolong the production cycle and reduce...

... accuracy distortion Journal of Ship Production and Design, Vol. 39, No. 1, February 2023, pp. 43 53 httpdx.doi.org/10.5957/JSPD.12210031 Research on an SVM Prediction of Welding Deformation Rectification for High-Strength Steel Fillet-Welded Joints after Traveling Induction Heating Yulong Feng,Ã Yujun...

... two opposing metrics. First, the model performance was evaluated by assessing the percentage of projects with predicted man-hours within a 25% range of accuracy with respect to those actually paid. The shipyard had reported this historic average accuracy per ship while explaining that large postmortem...

...Changhui Liu; Jianfeng Liu; Yansong Zhang; Sun Jin; Can Wang; Xinmin Lai Dimensional accuracy of hull block plays a critical role in guaranteeing the whole ship accuracy and reducing the hull butt-joint cost. The current industry practice of dimensional control in shipbuilding mainly focuses...

... to various hull plate types, with the performance of each classifier evaluated using cross-validation. A classifier applying a convolution neural network as a deep learning technology was found to have the highest prediction accuracy, which exceeded the accuracies obtained in previous hull plate...

...; therefore, empirical or statistical methods are better suited. The most prominent of these is the approximate power prediction method by Holtrop and Mennen (1982) together with its revision (Holtrop 1984). Although this methodology provides sufficient accuracy, the statistical sample of the hull forms...

... coefficient equation Froude number accuracy sway force proceedings experimental result Engineering Ikeda hull morabito maneuvering side force november 2018 hydrodynamic force ship production boat Journal of Ship Production and Design, Vol. 34, No. 4, November 2018, pp. 335 346...

... the actual cost and the cost at completion of vessel drydockings based on the Gray system theory. Results show that the accuracy of the GM (1,1) forecasting model is highly efficient. 1 2 2015 1 2 2015 2015 Society of Naval Architects and Marine Engineers project management gray...

...Yasuhisa Okumoto Recently, the prediction of welding distortion of steel structure has been carried out widely. Though the thermal elastic-plasticity finite element method (FEM) analysis is usually required to ensure the accuracy of the estimation, technical knowledge is required, and long...

... transportation Thickness thickness measurement collapse strength different measurement pattern accuracy correlation random variable freight & logistics services riser corrosion plate thickness random field correlation length average reduction corrosion pattern requirement well integrity...

... and their contributions to the final dimensional accuracy and distortion. As part of this effort, substantial work was done to characterize current dimensional quality performance in partial subunit (PSU) and combined partial subunit (CPSU) assemblies, and to identify contributing factors to dimensional inaccuracy...

... coherent laser radar scanning techniques with surfacing inspection software. The deck is measured in a "no load" condition and then remeasured while varying hogging and sagging loads are applied. The point cloud measurements are taken at micron level accuracies and can be directly related to the predicted...

... features that are relevant to cutting accuracy are dominated by only a few mill process parameters. Localized short-range residual stresses are not detrimental to cutting accuracy, even if the short-range residual stress magnitude can be high. Long-range residual stress distributions that achieve...

... specimen are measured to submillimeter accuracy and then compared to the computer-aided design (CAD) model for conformance validation. Positives and negatives of this technology are the subject of this paper and include the high accuracy potential of the coherent laser radar, the minimal manpower...

..., to ensure accuracy, experiments to estimate bending moments causing the welding deformations are performed. A computer program written with Visual C++ is developed for interactive data input, calculation of welding deformations, and display of deformed shape. Designers can change the design in the early...

... 2001 2001. The Society of Naval Architects and Marine Engineers strategic planning and management project management Artificial Intelligence US government accuracy planning & scheduling specification marine transportation fabrication Modeling & Simulation instrument...

... the competitiveness of the United States in the ever-increasing global marketplace. 1 5 2001 1 5 2001 2001. The Society of Naval Architects and Marine Engineers metals & mining accuracy structural component steel fabrication cutting fabrication laser welding steel plate manufacturing...

... of the proposed models and methods are verified by an example. It is also verified that the proposed method provides improved machining efficiency and accuracy relative to many other common contemporary methods. 1 5 2001 1 5 2001 2001. The Society of Naval Architects and Marine Engineers...

.... The Society of Naval Architects and Marine Engineers 1 2 2001 1 2 2001 strategic planning and management Modeling & Simulation Simulation project management part family Artificial Intelligence accuracy process element operation Engineer Implementation assembly ship...