A SHIP SHAFTING TORSIONAL OSCILLATION CALCULATION OF THE PLEASURE PASSENGER SHIP "ERIDANUS" PR.R19-1
The article focuses on the safe operation of the ships shafting. Using calculations of torsional vibrations is to define the operating resonatorless modes of the internal combustion engine is part of the shafting. The relevance of this article is contained in studying results of math calculations от the basis of which recommendations of reducing oscillation and increasing the reliability of ship shafting can be made. Some constructive changes also can be recommended.The calculation of basic characteristics of free torsional oscillation of a ship shafting of the pleasure passenger ship «Eridanus» (design R19-1) is carried out in the research. Construction of units, propulsion system of a ship are studied. The algorithm is described, and a program for computer calculations of free torsional oscillation of a ship shafting is presented. The final procedure for the calculation of free vibrations associaled with the construction of a freguency histogram. It allows to determine resonant modes of operation shafting. Using math model and results of calculations was defined the most dangerous plot shafting. Information getting on this stage of research can be considered as a foundation for further calculations and used for setting the resonances of oscillation.