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. , Wazny M.
• 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

• Wydawca: -
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: 23
• Numer: 2
• Opis fizyczny: p.83-90,fig.,ref.

Twórcy

autor

Tomaszek H.

• Air Force Institute of Technology, Ksiecia Boleslawa 6, 01-494 Warsaw, Poland

autor

Zieja M.

• Air Force Institute of Technology, Ksiecia Boleslawa 6, 01-494 Warsaw, Poland

autor

Wazny M.

• Air Force Institute of Technology, Ksiecia Boleslawa 6, 01-494 Warsaw, Poland

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Identyfikatory

DOI

10.1515/pomr-2016-0024