Development of an Experimental Methodology for Self-Propulsion Test with a Marine Diesel Engine Simulator, The Second Report – Propeller Pitch Control -

摘要

Controllable pitch propeller, CPP, is added to the experimentalmethodology for self-propulsion model test in waves with the MDES:Marine Diesel Engine Simulator. MDES is a real-time control systemof propeller rotating speed reflecting the characteristics of marine dieselengine. The authors (Tanizawa, Kitagawa, Takimoto and Tsukada, 2012)introduced MDES, presented the model test results in waves andproposed the new experimental methodology to measure shipperformance in waves. Using this methodology, we can measure notonly ship motion responses but also the realistic dynamic responses ofship propulsion system in waves such as propeller load, rotating speedfluctuation and fuel supply rate of main engine and et cetera.As one of the additional functions of the methodology, the authorsdeveloped a model of controllable pitch propeller, CPP. This modelCPP is driven by MDES and the transient response of engine to thevariation of pitch angle can be reproduced. Using this model CPP andMDES, the authors conducted self-propulsion model test in waves atActual Sea Model Basin of NMRI.This paper introduces the outline of the model CPP and result of theexperiment.