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## Numerical Modelling of Beam Wave Equation

Kožar, Ivica; Štimac, Ivana
Numerical Modelling of Beam Wave Equation // 1. Simpozij Računalstvo u graditeljstvu : povodom 40. obljetnice računalstva na Građevinskom fakultetu : zbornik radova = 1st Symposium Computing in Engineering : celebrating 40th anniversary of computing at the Faculty of Civil Engineering : proceedings / Herman, Krešimir (ur.).
Zagreb: Građevinski fakultet, 2003. str. 33-40 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)

Naslov
Numerical Modelling of Beam Wave Equation

Autori
Kožar, Ivica ; Štimac, Ivana

Izvornik
1. Simpozij Računalstvo u graditeljstvu : povodom 40. obljetnice računalstva na Građevinskom fakultetu : zbornik radova = 1st Symposium Computing in Engineering : celebrating 40th anniversary of computing at the Faculty of Civil Engineering : proceedings / Herman, Krešimir - Zagreb : Građevinski fakultet, 2003, 33-40

ISBN
9536272113

Skup
Simpozij Računalstvo u graditeljstvu (1 : 2003)

Mjesto i datum
Zagreb, Hrvatska, 04.-06.12.2003.

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Wave equation; numerical modelling

Sažetak
Wave equation for beams describes many important phenomena like load moving over a beam. Solution of the wave equation enables us to obtain insight into dynamical influence of a moving load and numerical solution permits us to easily change boundary conditions, load characteristics and damping. Realistic modelling of structures requires introduction of springs and dashpots to simulate various supports and numerical solution is the only way of including all of the above characteristics into practical model. Average acceleration method has been employed since direct use of finite differences had shown as being practically unusable. On the basis of the theory 2-D finite element numerical model has been made and numerical results have been compared with some analytical solutions. Also comparisons have been made with on site measurements of bridges. Good agreement has been obtained which gives us confidence in numerical model. Further expansion and development is under way.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti