Vol.2, No 1, 2004 pp. 109 -124
UDC 621.87:622.23.08
PROCESSING THE LIFETIME OF BUCKET WHEEL
EXCAVATOR PARTS IN STRIP MINE TECHNOLOGIES
Zoran Marinković, Goran Petrović
Mechanical Engineering Faculty, University of Niš
A. Medvedeva 14, 18000 Niš, Serbia and Montenegro
Abstract. The paper presents a complex model of calculating the
parts of complex machine systems exposed to variable load and strain. This
model includes calculation of operational safety and lifetime of parts,
on the example of the bucket wheel excavator driving mechanism. The goal
is to apply this calculation model to making safe and reliable machine
systems, i.e. bucket wheel excavators, which will operate efficiently under
complex exploitation conditions in coal mines.
Key Words: Bucket Wheel Excavator, Load, Operational Stress,
Discretization, Lifetime.
PROCESIRANJE RADNOG VEKA ELEMENTA ROTO
BAGERA U TEHNOLOGIJAMA POVRŠINSKIH KOPOVA
U radu je prikazan kompleksan model proračuna elemenata složenih mašinskih
sistema, koji su izloženi promenljivom opterećenju i naprezanju. Ovaj model
obuhvata proračun radne sigurnosti i radnog veka elemenata na primeru pogonskog
mehanizma radnog točka roto bagera. Cilj je da se primenom ovog modela
proračuna stvaraju sigurni i pouzdani mašinski sistemi, tj. roto bageri
koji će efikasno raditi u složenim eksploatacionim uslovima površinskih
kopova uglja.
Ključne reči: roto bager, opterećenje, radni napon, diskretizacija,
radni vek.
