Mathematical and computer modeling of gantry crane load-beam system oscillation

Introduction. Gantry grappling cranes are the main equipment for cargo transportation in technological processes of mining and enrichment rocks. During operation crane, undesirable effects such as rocking payload occur, which turn affects dynamic state crane beam. Materials methods. To solve this problem, methods mathematical computer modeling a system with two degrees freedom were used. identify influence different combinations combination mass cable length on oscillation frequencies, computational experiment was carried out response surface frequency function constructed. The natural frequencies beam determined by finite element method NASTRAN program. Results. results graphs changes angle deviation from vertical movement trolley, weight cargo. Discussion. A comparison simulation vibrations showed proximity values gantry design, justifies need further analysis to disturbance vibration force. Conclusion. load significantly static strength Resume. research can be useful development technical solutions engineering implementation promising designs.