Naslov
Analysis of mechanical properties of resilient tram wheel screws

Autori
Haladin, Ivo ; Škrinjar, Damir ; Duvnjak, Ivan ; Lakušić, Stjepan

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

Izvornik
Proceedings of 30th Danubia-Adria Symposium on Advances in Experimental Mechanics / Alfirević, Ivo ; Semenski, Damir - Zagreb : Hrvatsko društvo za mehaniku (HDM), 2013, 260-261

ISBN
978-953-7539-17-7

Skup
30th DANUBIA-ADRIA Symposium on Advances in Experimental Mechanics

Mjesto i datum
Primošten, Hrvatska, 25.09.2013. - 28.09.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
resilient wheels; screws; exploitation influence; mechanical testing

Sažetak
In recent years ZET (Zagreb Municipality Transit System) has acquired 140 new low-floor trams TMK 2200 built by Croatian consortium – Crotram. New trams introduced new wheel type as well. Instead of monoblock wheels used on older tram units, the new trams run on resilient wheels Bochumer Verein BO 84, which consist of wheel tyre mounted on to the wheel body with resilient pads in between designed for vibration absorption. Two wheel components are bolted together using 24 high quality screws M22x58 and M16x60, 12 of each type. The instructions provided by the tram manufacturer is to replace the screws after the second tyre refitting, hence after 200 000 km in operation. This procedure requires acquisition of 13400 new screws annually, which represents a significant expense for the tram maintenance. This fact has led to investigation of wheel screw behaviour over the exploitation period in order to examine their mechanical properties and to investigate if they are safe for further use, therefore saving valuable resources.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA