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Calculation of the longitudinal strength of the ship using the programming language Python 3.7

Calculation of vertical transversal forces and bending moments is an important step of each ship's project documentation and a part of the structural stability calculation. It is most commonly used to determine the longitudinal strength of the ship, as well as to predict local strength of a ship structure. Although such calculations are already conducted on specialized software prepared by classification societies, the goal of this work was to prepare an in-house open source checking tool for student projects as well as to use it as a teaching tool for presenting the most commonly used mathematical models, such as Newton - Cotes formula known as Simpson's rule, linear and/or quadratic interpolation. Python 3.7 programming language was chosen as programing tool for ease of use and large number of easily accessible documentation. Although there are already numerous Python modules that can successfully address the above mentioned problems, they were not included in software. Instead, all functions are coded within the main program and are solely the work of the author. The program has been checked and calibrated using documentation of several use cases.

longitudinal strength of the ship, Python, Simpson’s rule, software

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