The mathematical model of the big capacity crane ship with the fullturning overhead superstructure
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 66
Abstract
The mathematical model of determination of displacement and main dimensions of crane ships is offered. Calculation dependences of their determination are obtained. The offered formulas take into account the requirements of classification societies and international conventions, regulating normative indexes in shipbuilding and navigation. The questions of the preliminary planning of derrick-boats which were not considered before are analyzed. The complex review of the literature is executed. Mathematical dependences take into account intercommunication between the principal items of the gravimetric loading (a corps, devices, systems, a power plant, stocked displacements) and the navigated internals especially by a buoyancy and stability on the large angles of roll. The correction coefficients of the model are obtained by the analysis of the existing projects worked out in the Central Design Bureau “Corall”. Verification of the mathematical model is conducted by the practical calculation of displacement and main dimensions for the projects of crane ships that are exploited in Ukraine and nearby states. The absolute errors of the calculation are presented, the obtained results are analyzed and the tasks of further researches are determined. Further researches of the authors will be directed to the introduction of such restrictive condition of the requirement for the limitation of the initial metacentric height (GZ) that is one of determinatives of stability at the precipice of load.
Authors and Affiliations
D. J. , Nesin, S. V. , Terlych
Keywords
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