Research on Deformations Which Appear in within the Metal Structures of Mining Equipment

G. Paraschiv, Department of Biotechnical Systems, Biotechnical Systems Engineering Faculty, Polytehnic University of Bucharest, Romania D. Dobrotă, Department of Engineering and Management of Technological Systems, Engineering Faculty, University “Constantin Brâncuşi” Târgu-Jiu, Romania Metal structures of the mining equipment are made of a steel with good weldability and mechanical characteristics corresponding and namely St 52.3 steel that allows the use of these metal structures in heavy duty. Metal structures of the mining equipment are very large structures and strong requested mechanical, and in these conditions during exploitation can occur large deformations at these that may cause a decrease in the exploitation safety of mining equipment. Research has followed in principal the analyze of deformations appear in metallic structures, and for realizing the researches has been used both a dimensional analysis and one that is based on the finite element method.