Determination of accelerations at arbitrary points of a ship based on nonlinear theory in irregular 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 conditions of irregular waves. To determine them, the spectral method and accelerations previously calculated for regular waves are used. A study is carried out of the influence of changes in heading angle and speed on the maximum values of acceleration. Acceleration calculations are provided for various ships. The significant influence of nonlinear forces on horizontal and vertical accelerations at beam waves 7, 8 and the need to take it into account is shown.
About the Authors
V. Yu. Semenova
St. Petersburg state marine technical university
Russian Federation
Russian Federation
DSc, professor
D. A. Al’baev
St. Petersburg state marine technical university
Russian Federation
Russian Federation
senior lecturer
References
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Review
For citations:
Semenova V.Yu., Al’baev D.A. Determination of accelerations at arbitrary points of a ship based on nonlinear theory in irregular waves. Research Bulletin by Russian Maritime Register of Shipping. 2024;1(75):25-32. (In Russ.)
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