Application of computer systems for modeling dynamic processes of lifting machines

The main task of mechanical engineering is to organize the production a range machines meet needs all industries. These are power, transport, lifting and transport units, agricultural machinery, construction industry, etc. Among them, one can single out devices in which relative movement their parts assigned, that is, kinematic pairs included calculation models. real operating conditions varied, but most often they associated with periodic starts-stops, determines relevance study unsteady modes. analysis operation such models becomes more complicated. For successful design results, mathematical modeling individual processes mechanisms carried out. One first calculations dynamic. Modern, available CAD / CAE systems for provide automation capabilities, building realistic paper discusses approbation use dynamics jib crane set four units: platform, boom, sleeve rod. developed model combined: platform correspond kinetostatic model, boom rod elastic. designed perform operations vertical plane, possibility 3 rotational translational pairs. performed static, modal dynamic analyzes links mechanism confirm adequacy them instantaneous load application, typical "lifting picking" mode mechanisms. deformation entire structure positions also considered. determination reaction forces hydraulic cylinder provides important information selection power unit.