主機関の統計的解析と制御

概要

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A ship's main engine is regulated by a governor. The object of governor is to suppress the variation of revolution of propeller. The variation of propeller revolution is induced by ship's motion in many cases. In this paper, the authors statistically analyzed the effect of ship's motions to the variation of propeller revolution, using a multi-dimensional autoregressive model from actual ship's motion data. As a result, we gained the following conclusions; a) the variation of propeller revolution is mainly induced by pitching, heaving and rudder motion. b) the present governor may be not effective in a rough sea condition. Using their results, the authors propose a new digital governor (AR governor) using a statistical autoregressive model. In this governor, the pitching and/or heaving information are adopted except for the propeller revolution's one.
社団法人日本航海学会の論文
1988-09-25