Calculation of second-order non-linear diffraction forces acting on heeled frame sections
Abstract
The results of calculations of non-linear diffraction forces and moments of the second-order acting on heeled frame sections, on the basis of application of two-dimensional potential theory are presented. The classical and modified methods of integral equations for shallow water are used to determine these forces. А study of shallow waters h/T influence on diffraction forces was carried out, also, the results of calculations obtained by classical and modified methods are compared. The influence of a change in heel angle on nonlinear forces at a constant value of relative depth h/T was conducted. An increase of values of non-linear forces with increase of roll angle and decrease of magnitude h/T is shown.
About the Authors
V. Yu. Semenova
St. Petersburg State Marine Technical University
Russian Federation
Russian Federation
DSc, Professor
190008 St. Petersburg, Lotsmanskaya ul., 3
A. I. Dintser
Severnoye Design Bureau JSC; St. Petersburg State Marine Technical University
Russian Federation
Russian Federation
3 cat. Design Engineer; postgraduate student
198096 St. Petersburg, Korabelnaya ul., 6, korp. 2, lit. A
190008 St. Petersburg, Lotsmanskaya ul., 3
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Review
For citations:
Semenova V.Yu., Dintser A.I. Calculation of second-order non-linear diffraction forces acting on heeled frame sections. Research Bulletin by Russian Maritime Register of Shipping. 2024;(77):51-61. (In Russ.)
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