Gearbox Model Clause Samples

Gearbox Model. The example reference ship has two propulsion reduction gearboxes, type ▇▇▇▇ ▇▇ NDSHL3000, with the following specifications of 5760 kW, speed input 510 1/min, speed output 130 1/min, ratio 3.923:1. Note, the ratio for the shaft generator is 1806/510 = 3.54:1 A standard gearbox model from the GES library was adapted to represent the type ▇▇▇▇ ▇▇ NDSHL3000 gearbox. The gearbox model consists of the following subsystems:  Shaft losses  ME Clutches  Speed ME unlocked  PT0, no clutch The gearbox losses are described by the actual torque, power and speed compared with the nominal torque, power and speed. The total output power is derived from the two inputs, as for each input there is an associated power loss calculated according the following equation. Figure 91 shows the GES model block for the gearbox that will be included in the INOMANSHIP libraries. Table 59 gives the input and output parameters needed to define the GES gearbox with PTO model block. Type Name Gates Paramet ers Gearbox PTI4 12 Version INOMAN.1 Help Mechanical Created Fuel type 0 TNO SWBS 2411 11/24/2013 gate # Index Power [In,Out] effort cal unit flow cal unit parameter # name value unit 0 0 Out Mo [N.m] wo func [rad/s] 0 nominal power (DE2) 5760 [kW]