Model of Fatigue life Degradation of Crankshaft

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62690094%3A18440%2F18%3A50015070" target="_blank" >RIV/62690094:18440/18:50015070 - isvavai.cz</a>

Result on the web

<a href="http://www.wseas.org/multimedia/journals/mechanics/2018/a385111-097.pdf" target="_blank" >http://www.wseas.org/multimedia/journals/mechanics/2018/a385111-097.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Model of Fatigue life Degradation of Crankshaft

Original language description

This article is dedicated to modeling and simulation of fatigue degradation of crankshaft. In this article is discussed model of crankshaft which is damaged during its service life. Specially authors consider in their work the fatigue damage influenced by the vibration during traffic. The fatigue damage is considerable problem in engineering and can cause catastrophic accidents, also this accidents can caused fatal injury of personnel. The crankshafts are subjected to the intensive multiaxial loading during its working life and crankshaft failure is much more frequent cause of the accident, during the engine service parts except cylinder rupture. Therefore great effort is devout to the fatigue resistance improvement and proper method of fatigue life modeling. In recent work, relatively new approach for fatigue crack modeling is discussed and its application on specific problem of crankshaft in four cylinder engine. Experimental part of this study is based on measurement of vibration on the crankshaft. The experimental device was used with down-scaled model of engine to reveal influence of vibration. The majority of fatigue crack models are working with predefined boundary length of crack. This length makes possible to distinguish between the different phases of crack growth, i.e. different crack growth mechanism. The method used in this work is based on another approach. The fatigue crack is simulated in this way: (1) the crack grew throughout the whole crankshaft volume controlled by nucleation mechanism, (2) by propagation mechanism. Thus two different fatigue curves are obtained and merged in one final fatigue curve. This method is in compliance with data obtained experimentally.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20301 - Mechanical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

WSEAS transactions on applied and theoretical mechanics

ISSN

1991-8747

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

13

Country of publishing house

GR - GREECE

Number of pages

6

Pages from-to

175-180

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85061289371