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Analysis of Apparent Spontaneous Yawing for a Ship Under Way

Published online by Cambridge University Press:  21 October 2009

C. de Wit
Affiliation:
(Delft University of Technology)

Abstract

In this paper a mathematical model is presented to explain the phenomenon of yawing oscillations of a ship, when sailing in a mean straight course with a constant mean speed. With this model, periodic yawing can be simulated as a result of simultaneous periodic rolling and pitching, emphatically without the input of any rudder action. Additionally, the study throws a new light on the old question of whether the Cardan suspension of the compass bowl should be with the outer gimbal axes fore and aft or athwartships.

Type
Research Article
Copyright
Copyright © The Royal Institute of Navigation 1988

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References

REFERENCES

1Price, W. G. and Bishop, R. E. D. (1974). Probabilistic Theory of Ship Dynamics, pp. 220277. London: Chapman and Hall.Google Scholar
2Ralston, A. and Rabinowitz, Ph. (1978). A First Course in Numerical Analysis, 2nd ed., p. 217. London: McGraw-Hill.Google Scholar
3Van Amerongen, J. (1982). Adaptive Steering of Ships. Doctor's Thesis, Delft University of Technology, Electrical Engineers Department.Google Scholar