The towed system includes towing ship, cable and towed body. The main disturbances come from towing ship's heave and pitch motion induced by sea wave and wind. Sea surface disturbances are transferred along cable to cause towed body bad performance. The reduced ship motion mathematical model,cable dynamics model, and towed body motion model are initially integrated as a new disturbance propagation model by connection conditions in this paper. A computer program simulates the surface regular wave disturbance propagation property of two part towed system according to the model. The integral method can be used in the design of sea towed system.

Towed system motion transfer calculation

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