THEORETICAL STUDIES AND EXPERIMENTAL RESEARCH FOR THE INCREASE OF THE WORK SAFETY AT GANTRY CRANES

Abstract

The need for cranes is extremely wide and various. The present research is focused on the gantry cranes, which are largely spreaded as destination and work conditions. The study of the above mentioned cranes is the subject of a classical analytical approach and also of an actual approach of high interest – the Finite Element Method (FEM) of the mechanical structures. An experimental approach which confirms the methods and the results obtained through other methods is also achieved. The analysis was performed on a particular structure – a 3D one consisting mainly on beams, loaded in static and dynamic regime. One emphasizes the fact that this above mentioned structure is a particular one, on which one tries to get some original contributions concerning the improving of the work safety. The work safety of the mechanical structures subjected to the static and dynamic load’s action represents a highly complex issue. The precise knowing and understanding through adequate techniques and technologies of the whole structure but of the components, too regarding the state of stress, stands at the base of the work safety. One established that the structure’s answer analysis in static and dynamic regime, mainly expressed by the values of the displacements and stresses fields is essential for the work safety.