Open AccessStructural strength evaluation of a 3000 dwt river-barge, under oblique quasi-static design waves
Author(s) -
Dumitru-Silviu Perijoc,
Leonard Domnișoru,
Cristi-Marian Angheluță
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1182/1/012059
Subject(s) - barge , finite element method , oblique case , freeboard , hull , structural engineering , ballast , von mises yield criterion , range (aeronautics) , wave loading , deformation (meteorology) , geology , computer science , marine engineering , geotechnical engineering , engineering , submarine pipeline , philosophy , linguistics , oceanography , fluidized bed , aerospace engineering , waste management
The present study consists of the 3D-FEM global structural analysis of a typical open-top, double-hull, 3000 DWT inland navigation barge, having 90 m in length. The 3D-FEM model developed to perform the evaluation idealizes the barge structure with high accuracy, average element size being in the range of 50-75 mm. Two loading cases were analyzed, consisting of the ballast and full loading conditions. For the equilibrium floating condition in calm water and oblique design waves, an eigen iterative scheme has been used to generate the input parameters for the 3D-FEM analyzed cases. The push-barge finite element model has been subjected to oblique quasi-static design waves, headings ranging from 0 to 75 degrees. Wave heights considered in the analysis range from 0 to 1.2 m, step 0.3 m, corresponding to the Danube navigation conditions and freeboard limit imposed by the classification societies for inland navigation vessels. Numerical results following the FE analysis have been assessed by the yielding stress ratio, von Mises criterion, and the maximum deformation, thus indicating the structural areas that need to be improved in the design process.