Determination of accelerations at arbitrary points of a ship based on nonlinear theory in regular waves
Abstract
The article discusses the determination of accelerations at various points of the ship from the action of second-order nonlinear forces on the basis of three-dimensional potential theory in regular waves. To determine them, methods of integral equations and the small parameter method have been used. Acceleration calculations using the developed programs have been tested in comparison with programs based on the use of two- dimensional methods. A study of the influence of changes in heading angle and speed on acceleration amplitudes has also been carried out. Acceleration calculations have been provided for various ship types. The significant influence of nonlinear forces on horizontal and vertical accelerations in zones of superharmonic resonant modes in the beam waves and the need to take it into account have been shown.
About the Authors
V. Yu. Semenova
St. Petersburg State Marine Technical University
Russian Federation
Russian Federation
DSc, professor
St. Petersburg
D. A. Albayev
St. Petersburg State Marine Technical University
Russian Federation
Russian Federation
St. Petersburg
References
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Review
For citations:
Semenova V.Yu., Albayev D.A. Determination of accelerations at arbitrary points of a ship based on nonlinear theory in regular waves. Research Bulletin by Russian Maritime Register of Shipping. 2024;(74):36-46. (In Russ.)
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