Russian Federation
This article addresses the problem of ensuring the stability of a ship at anchor in conditions of strong currents, which is one of the key tasks in ship handling. A method for calculating the safe speed of water movement relative to the ship is developed, based on a comprehensive consideration of hydrodynamic, aerodynamic, and seabed factors. The paper presents a mathematical model describing the interaction of forces acting on the "ship-anchor" system, taking into account the characteristics of the current, wind, and anchor equipment. The methodology was tested in real scenarios for ships of different types and tonnages, with results compared to practical observations and alternative methods. Critical parameters influencing anchor stability, such as anchor chain length, seabed type, and direction of external forces, were identified. The obtained results confirm the high accuracy of the proposed method and its effectiveness in ensuring navigation safety.
safe speed, anchoring, strong current, anchor holding force, hydrodynamic load, aerodynamic load, seabed type, ship stability
1. Voytenko, S. N. Teoriya i praktika yakornogo oborudovaniya sudov. — M.: Transport, 2008. — 215 s.
2. Gordiychuk, A. A., Kuznecov, I. V. Osnovy teorii i raschetov yakornyh sistem dlya morskih sudov // Trudy Rossiyskoy akademii morskogo transporta. — 2019. — № 3. — S. 12–22.
3. Lewandowski, E. Maritime Hydrodynamics. — Gdansk: Gdańsk University of Technology, 2018. — 320 p.
4. Choo, Y. S., Koo, W. Analysis of anchor systems under dynamic loading conditions // Journal of Offshore Mechanics and Arctic Engineering. — 2020. — Vol. 142, No. 6. — pp. 061704-1–061704-9.
5. Bhattacharyya, R. Dynamics of Marine Vehicles. — New York: Wiley, 2013. — 480 p.
6. Ustyugov, E. V., Zaharov, L. V. Ustoychivost' sudov na yakore: vliyanie gidrometeorologicheskih usloviy // Morskoy vestnik. — 2021. — № 4. — S. 34–45.
