TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Some Aspects Regarding the Deflection of the Beams with Variable Cross Sectional Area
(Aspecte privind deformarea barelor cu sectiune variabilă)
Vol LXI • No. 4/2009
Liliana Rusu, Serban Vasilescu
Universitatea Petrol-Gaze din Ploiesti, Bd. Bucuresti 39, Ploiesti
e-mail: vserban @upg-ploiesti.ro

 Keywords   deflection, elastic curve.

 Abstract
In the paper is presented a way of calculation of the maximum deflection for a beam with a variable cross sectional area. When such a beam is externally loaded with a concentrated force the maximum deflection is usually reached in another section. In this paper is presented the mrethod of finding the section where the deflection has the maximum value in the same point where the external force acts. This section is dangerous especially for the transversal impact and is recommended to be avoided. The results obtained are analysed in a calculus example.

 Rezumat
În lucrare se prezintă o metodologie pentru determinarea deplasarii maxime la o bara cu sectiunea variabila. Este analizat cazul defavoravil cand deplasarea maxima se obtine chiar in punctul in care actioneaza forta concentrata, deoarece o astfel de situatie trebuie evitata, in special cand apar si fenomene de impact transversal. Rezultatele obtinute sunt analizate pe un exemplu de calcul.



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