Tehnički vjesnik, Vol. 23 No. 4, 2016.
Stručni rad
https://doi.org/10.17559/TV-20151123152659
Assessment of the maximum possible extension of bucket wheel SchRs740 boom based on static and dynamic calculation
Branko Petrović
; Mining Basin Kolubara, Kolubara Project, Svetog Save 1, 11550 Lazarevac, Serbia
Ana Petrović
orcid.org/0000-0002-5996-1485
; University of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11000 Belgrade, Serbia
Dragan Ignjatović
; University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia
Ines Grozdanović
; University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia
Dražan Kozak
orcid.org/0000-0001-5245-4686
; Josip Juraj Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Marko Katinić
; College of Slavonski Brod, Technical Department, Dr. Mile Budaka 1, 35000 Slavonski Brod, Croatia
Sažetak
Bucket wheel boom represents the most loaded and the most responsible part of the excavator structure, participating only with 6 to 13 % in the entire excavator weight. Its length is selected depending on the technological requirements of mining deposit, and it has to be adjusted with the designed possibilities of the excavator. At the request of mining technology that is in compliance with the soil-mechanical properties of deposit, conditions for the selection of excavator optimal parameters are created, and therefore for determining the required length of the boom. In this paper, analysis of dynamic and static behaviour of boom extended from 1 to 10m with a step 1m was done. The maximum possible extension is defined as the aspect of the structural performance, dynamic behaviour and stress field. Finite Element Method (FEM) is used to obtain natural frequencies, displacements and stresses.
Ključne riječi
bucket wheel boom; dynamics; FEM; increasing the boom length; stress
Hrčak ID:
163822
URI
Datum izdavanja:
16.8.2016.
Posjeta: 2.330 *