Experimental evaluation of forward speed effect on maneuvering hydrodynamic derivatives of a planing hull

• Autorzy: Kazerooni M. F. , Seif M. S.

Identyfikatory

DOI

10.17402/199

• Języki publikacji: EN

Abstrakty

EN

The calculation of unknown hydrodynamic derivatives of the equations of motion is the first step to estimate ship maneuverability and dynamic stability. These derivatives can be obtained theoretically, experimentally and numerically. Despite the development of the oblique towing model test to measure the hydrodynamic derivatives of displacement ships, limited experimental results are available for hydrodynamic derivatives of high speed crafts and speed dependency of the hydrodynamic derivatives is not understood well. In this paper a systematic series of model tests is described to determine the effect of forward speed on hydrodynamic derivatives of a monohull planing craft and the variations of the hydrodynamic derivatives by forward speed are derived. According to the results, hydrodynamic derivatives of planing hull are dramatically changed by variations of forward speed. Moreover, it is not possible to introduce a constant hydrodynamic derivative in the all the ranges of drift angle. Thus, the method of known constant hydrodynamic derivatives is not applicable to the simulation of planing craft maneuvering and variable hydrodynamic derivatives should be applied.

Słowa kluczowe

EN

planing hull; maneuvering; model test; derivative; hydrodynamic

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2017
• Tom: nr 49 (121)
• Strony: 40--53
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Kazerooni M. F.

• Sharif University of Technology Center of Excellence in Hydrodynamics & Dynamics of Marine Vehicles, Tehran, Iran

autor

Seif M. S.

• Sharif University of Technology Center of Excellence in Hydrodynamics & Dynamics of Marine Vehicles, Tehran, Iran

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)