Transfer function for a controllable pitch propeller with added water mass

• Autorzy: Leshchev Volodimir , Maslov Igor , Palagin Oleksandr , Naydyonov Andrii

Identyfikatory

DOI

10.2478/pomr-2023-0060

• Języki publikacji: EN

Abstrakty

EN

The relevance of this study lies in the fact that it presents a mathematical model of the dynamics of the propulsion system of a ship that takes into consideration the mass of water added to it. The influence of this phenomenon on the resonant frequencies of the propeller shaft is examined, and a transfer function for a controllable-pitch propeller is obtained for various operating modes. The purpose of the study is to improve the calculation of the dynamic operating modes of a controllable-pitch propeller by examining the features of a visual models. The VisSim software package is used in the study. A visual model is developed that considers the influence of the rotational speed on the value of the rotational inertia attached to the variable-pitch screw of the mass of water, and a special transfer function is proposed. The study shows that a transfer function of this type has a loop enabling negative feedback. An analysis of the operation of the propeller shaft at its resonant frequency is conducted based on the application of frequency characteristics using the transfer functions obtained. We show that in the low-frequency region, a consideration of the added rotational inertia using the proposed transfer function leads to a significant difference compared to the result obtained with the existing calculation method.

Słowa kluczowe

EN

propulsion system; torsional vibrations; shaft line; added water mass; transfer function; propeller screw

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2023
• Tom: nr 4
• Strony: 74--80
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Leshchev Volodimir

• Department of Ship Power Plants and Systems, Danube Institute of the National University „Odessa Maritime Academy”, Ukraine

• https://orcid.org/0009-0001-5255-2785

autor

Maslov Igor

• Department of Ship Power Plants and Systems, Danube Institute of the National University „Odessa Maritime Academy”, Ukraine

• https://orcid.org/0009-0001-5255-2785

autor

Palagin Oleksandr

• Department of Ship Power Plants and Systems, Danube Institute of the National University „Odessa Maritime Academy”, Ukraine

• https://orcid.org/0009-0005-8326-1568

autor

Naydyonov Andrii

• Department of Ship Power Plants and Systems, Danube Institute of the National University „Odessa Maritime Academy”, Ukraine

• https://orcid.org/0009-0000-8988-2908

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).