Naslov
Rocking motion of a single rigid rectangular block - analysis of the block slenderness assumption

Autori
Čeh, Nina ; Jelenić, Gordan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
Proceedings of the 8th International Congress of Croatian Society of Mechanics / Kožar, Ivica ; Bićanić, Nenad ; Jelenić, Gordan ; Čanađija, Marko - Rijeka : Hrvatsko društvo za mehaniku (HDM), 2015

ISBN
978-953-7539-21-4

Skup
8th International Congress of Croatian Society of Mechanics

Mjesto i datum
Opatija, Hrvatska, 29.09.2015. - 02.10.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
rocking motion; rigid block; slenderness; nonlinear solution

Sažetak
Rocking motion of a single rigid rectangular block on rigid base subjected to base acceleration function, with the assumption that friction between block and base is large enough to prevent sliding motion, is analyzed. In literature, such analysis has been carried out using a linearized equation of motion assuming slender geometry of the block and small rotations. The analysis herein additionally addresses the cases when the block is non-slender and can undergo large rotations. With the aim to investigate the influence of assumptions introduced into linearized analysis on the accuracy of solution, three types of analysis are carried out: (1) linearized analysis assuming slender geometry of the block, (2) quasi-nonlinear analysis, i.e. linearized analysis taking real geometry of the block into account, and (3) nonlinear analysis. Newmark0s method with average acceleration is used for numerical integration and Newton-Raphson iterative procedure is used to solve the nonlinear equation. Free and forced rocking motion of slender and non-slender rigid rectangular block with varying initial conditions are analyzed. Analytical solutions of the linearized and quasinonlinear equation of motion are compared to numerical results.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

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