期刊
OCEAN ENGINEERING
卷 267, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2022.113303
关键词
Variable mass underwater vehicle; Variable mass parcels; Mathematical model; System analysis
This research introduces a new dynamic model for underwater vehicles, taking into account variable mass and center of gravity. The variation of center of gravity and moment of inertia depends on the convolution of the mass changing rate function and trajectory function. The research highlights the significant impact of center of gravity variation on the maneuverability of underwater vehicles, compared to fixed center of gravity models. It also provides a theoretical basis for the design of variable mass underwater vehicles used in floating mining craft and underwater dredging craft.
This research proposes a new dynamic model for underwater vehicles with variable mass and center of gravity. The variation of center of gravity and moment inertia of the vehicle is related to the convolution of mass changing rate function and trajectory function. Furthermore, the center of gravity varies obviously if exists disturbance and variable mass parcels. In comparison of fixed center of gravity model, the variation of center of gravity impacts the maneuverability of underwater vehicles greatly. As extended applications, this research provides theoretical basis for the design of floating mining craft, underwater dredging craft and other variable mass underwater vehicles.
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