LOADS OF THE TELESCOPIC BOOM FROM LOCAL LOADS DURING TELESCOPING

One of the main factors affecting performance telescopic booms is loss local stability shelves and section walls. The sections occurs due to development plastic deformations in some most loaded or as a result stable equilibrium even at stage elastic deformation. In this case, maximum stresses boom are formed location supporting elements, where summation from external loads forces acting side elements (local loads) occurs. aim work study loading action process telescoping. Analysis extending (retracting) carried out using example equipment railway crane Sokol 80.01M. Numerical modeling used during Three telescoping modes selected: consecutive extension (retraction) without load; synchronous with load. results virtual experiment for each mode time dependences generated locations sliding bearings, vertical on pins hydraulic cylinders. A comparison was made greatest loadings cylinders three options sections. Based obtained dependencies loads, were calculated mode.