A method for reliability assessment of structural components of aircraft and sea-going ships with taking into account a given failure generation model

• Autorzy: Tomaszek H. , Zieja M. , Ważny M.

Identyfikatory

DOI

10.1515/pomr-2016-0024

• Języki publikacji: EN

Abstrakty

EN

This paper presents a metod for reliability assessment of structural components on the basis of diagnostic parameters recorded during operation of aircraft and sea going ships. It was assumed that a potential failure may simultaneously concerns surface wear process and fracture of an arbitrary structural component. In order to develop a reliability assessment model some elements of random walk theory were applied. This work covers surface wear density functions of a component. In the case of surface wear the model is based on a difference equation from which , after transformation, a Fokker-Planck partial differential equation was obtained. By solving the equation component’s surface wear density function is achieved. In the second part of the work a generalization of the model was made by introducing to it probability of disastrous fracture of a component. As a result, a generalized Fokkera-Planck’s equation was obtained. By making use of the equation, was obtained a relationship for assessment of reliability of a structural component in case when failure occurs due to surface wear with taking into account possible fracture of the component. In the end a numerical example which shows practical application of the developed method,is attached.

Słowa kluczowe

EN

bearing capacity factor; displacement; compression; tension; depth factor

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: nr 2
• Strony: 83--90
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Tomaszek H.

• nstytut Techniczny Wojsk Lotniczych ul. Księcia Bolesława 6 01-494 Warszawa Polska

autor

Zieja M.

• Instytut Techniczny Wojsk Lotniczych ul. Księcia Bolesława 6 01-494 Warszawa Polska

autor

Ważny M.

• Instytut Techniczny Wojsk Lotniczych ul. Księcia Bolesława 6 01-494 Warszawa Polska
• Wojskowa Akademia Techniczna ul. Kaliskiego 2 00-908 Warszawa Polska

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.