TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
The Calculus of the Proper Circular Frequencies for the Rod Pumping Units
(Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti e-mail: lianarusu8@yahoo.com)
Vol LX • No. 1/2008
Liliana Rusu, Şerban Vasilescu
Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail: lianarusu8@yahoo.com

 Keywords   proper circular frequencies, finite element method

 Abstract
In the paper, it is presented a calculus methodology for the proper circular frequencies of a rod pumping unit, using the finite elements method. It is established the minimum number of elements in order to minimize the error between the finite element results and those obtained from the general theory of axial vibrations of beams with continuous mass. The results obtained are analysed in a calculus example.


 Rezumat
În lucrare se prezintă o metodologie de determinare a frecvenţelor proprii ale unitǎţilor de pompare cu balansier. Este utilizata metoda elementelor finite şi este stabilit numǎrul minim de elemente necesar pentru a nu exista erori intre rezultatele numerice şi cele rezultate din teoria vibraţiilor barelor cu masă continuǎ. Rezultatele obţinute sunt analizate pe exemple de calcul.



Journal INFO (ISSN 1224-8495)
Vol LXVIII • No. 3/2016
Vol LXVIII • No. 2/2016
Vol LXVIII • No. 1/2016
Vol LXVII • No. 4/2015
Vol LXVII • No. 3/2015
Vol LXVII • No. 2/2015
Vol LXVII • No. 1/2015
Vol LXVI • No. 4/2014
Vol LXVI • No. 3/2014
Vol LXVI • No. 2/2014
Vol LXVI • No. 1/2014
Vol LXV • No. 4/2013
Vol LXV • No. 3/2013
Vol LXV • No. 2/2013
Vol LXV • No. 1/2013
Vol LXIV • No. 4/2012
Vol LXIV • No. 3/2012
Vol LXIV • No. 2/2012
Vol LXIV • No. 1/2012
Vol LXIII • No. 4/2011
Vol LXIII • No. 3/2011
Vol LXIII • No. 2/2011
Vol LXIII • No. 1/2011
Vol LXII • No. 4B/2010
Vol LXII • No. 4A/2010
Vol LXII • No. 3B/2010
Vol LXII • No. 3A/2010
Vol LXII • No. 2/2010 (Special Issue WELDING 2010)
Vol LXII • No. 1/2010
Vol LXI • No. 4/2009
Vol LXI • No. 3/2009 (Special Issue SPC 2009)
Vol LXI • No. 2/2009
Vol LXI • No. 1/2009
Vol LX • No. 4/2008
Vol LX • No. 3/2008
Vol LX • No. 2/2008
Vol LX • No. 1/2008
Vol LIX • No. 4/2007
Vol LIX • No. 3/2007
Vol LIX • No. 2/2007
Vol LIX • No. 1/2007
Vol LVIII • No. 4/2006
Vol LVIII • No. 3/2006
Vol LVIII • No. 2bis/2006
Vol LVIII • No. 2/2006
Signup
Forgot Password
  © copyright 2006 Universitatea Petrol - Gaze din Ploiesti