On the Simulation of an All Electric Ship Powertrain Utilizing a Surface Piercing Propeller Via a Modular Main Propulsion Plant Model
Zisman, Zachary Samuel
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A modular simulation model of a marine powertrain consisting of a prime mover, propeller shaft, propulsor, and control system was developed, tested, and used to demonstrate the ability to analyze the marine powertrain numerically. The modularity of the model allows for the user to easily substitute different or more advanced modules, or add additional modules to obtain a greater level of detail or simulate more complex interactions of systems with the marine powertrain. Current and historical trends indicate an interest in all electric ship design, and the use of surface piercing propellers for small craft. Due to the availability of towing tank data from a surface piercing propeller, an all electric prime mover module, surface piercing propeller module, propeller shaft module, and PID control module were coded, integrated, and operated, simulating a complete powertrain. Simulations were conducted using full-scale real-world conditions to demonstrate the model functionality and level of detail. Simulation results provided insight into the vibrational excitation, stability, and control of such a powertrain.
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