The effect of uncoupled propulsion and steering on the manoeuvring behaviour in coastal waters
Delefortrie, G.; Eloot, K. (2021). The effect of uncoupled propulsion and steering on the manoeuvring behaviour in coastal waters. Ocean Eng. 235: 109347. https://dx.doi.org/10.1016/j.oceaneng.2021.109347
The present paper introduces a mathematical model capable of simulating the behaviour of a twin propeller, twin rudder ship in uncoupled conditions, meaning that the portside and starboard propeller and/or rudder work at different rates, respectively angles. Such conditions are typically applied while manoeuvring in harbour conditions. The mathematical model coefficients are determined based on a captive manoeuvring test program which covers these uncoupled conditions. After implementation in the ship manoeuvring simulator, fast-time simulations have been carried out, which were successfully compared with free running tests in uncoupled conditions as well.
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