Abstract—The basic operational requirement for a marine propulsion shafting system is to transmit the torque over the required range of speeds. In the present work we have designed a shafting system for 53000 DWT BULK CARRIER, which has to transmit a power of 9840 KW and 9960 KW@124 RPM. Considering the needs of propulsion shafting system, the diameter of intermediate shaft, propeller shaft, journal bearings, flange couplings are calculated taking into consideration, the various forces acting on the system and some empirical relations from the data book presented on the bibliography of this book. In accordance with the bearing loads and speed of the engine. The design is done from the first principles, making some assumptions and the results are checked with the Lloyd’s register of shipping rules, which are the standard rules followed to maintained quality of the products for better performance, reliability and durability. Sectional views of the shafting are shown for better understandability.

Index Terms—Propulsion shaft, Torque, Power, Bending moments, Lloyd’s register of shipping rules

Cite: Venkatesh Boddapati, Sura Sanyasi Rao, Kakarla Sumanth, and Jayavarapu Manideep, "Design of Marine Propulsion Shafting System for 53000 DWT Bulk Carrier," International Journal of Mechanical Engineering and Robotics Research, Vol.4, No. 2, pp. 171-180, April 2015.