GEAR TRANSMISSION IN THE SHIP PROPULSION SYSTEM

Sa？etak The paper provides a survey of gear transmissions in marine propulsion system gearboxes which transmit a torque and reduce the rotational speed of the main propelling engine into the rotational speed of the ship’s propeller. Gear transmissions in marine propulsion system gearboxes are divided into standard gear transmissions and multiple mesh gear transmissions. Multiple mesh gear transmissions in marine propulsion system gearboxes are divided into ordinary multiple mesh gear transmission, planetary and combined multiple mesh gear transmissions. Due to the merger or division of the mechanical energy in these transmissions, the problem of equal torque (load) distribution onto individual gear couples appears. An equal torque distribution is achieved by a flexible shaft, flexible couplings, hydraulic cylinder etc. All gear transmission models are designed on the basis of the relevant literature in the computer program Autodesk？ Inventor？ 2010 Professional