Loading of the telescopic boom during a turnJournal: Nauchno-tekhnicheskiy vestnik Bryanskogo gosudarstvennogo universiteta (Vol.5, No. 4)
Publication Date: 2019-12-25
Authors : Potakhov E.A.;
Page : 497-509
Keywords : telescopic boom; drawdown; local loads; Solid Edge Simulation.;
The article is devoted to the study of the loading of a telescopic boom of a jib crane. The research methods used are the numerical experiment method, carried out in the module of complex dynamic and kinematic analysis of SolidWorks Motion mechanisms, and the Finite Element Method, used in the Solid Edge Simu-lation module, based on the FEA Femap analysis tech-nology and NX Nastran solver. The following loading modes of telescopic boom equipment were considered: load lifting, normalized rotation, sudden drawdown of the outrigger. As a result of research, a numerical model of a jib crane equipped with a telescopic boom is developed, which is identical in its characteristics to a real prototype; the dependences of the amplitudes of the kinematic parameters of the frame motion and the crane load on the outrigger drawdown during the rotation of the crane are established; The character of loading of elements of the telescopic boom for each loading mode is obtained. The stress-strain state of the telescopic boom is determined taking into account the interaction of the sections with the side stops; the dependence of the highest structural stresses on the magnitude of the drawdown of the outrigger is established; The significance of the influence of vertical and horizontal external and local loads on the loading of telescopic boom equipment is determined.
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