Dorohov N. Decrease of factor of dynamics of the bridge crane application dynamic extinguisher of fluctuations on the basis of wave chain transfer to the mechanism of lifting of loads

Object - dynamic process in travelling crane metallic structure by hoisting operations; goal - rising traveling crane technical level through developing a new hoisting mechanism construction with dynamic damper based on harmonic chain reduction gear and regularities of its interaction with travelling crane metallic construction; methods - fundamental principles and machine dynamics methods, differential calculus, physics, numerical solution methods of differential equation systems, modelling and technical systems similitude, experimental data processing, modern programming methods and dynamic parameter measuring means, comparative analysis of mathematical and computer modelling with experimental data; novelty - established interaction area of the dynamic damper with harmonic chain reduction gear and travelling crane metallic construction by unestablished motion; it has been found that the use of a regulated dynamic damper with harmonic chain reduction gear in hoist mechanism at periods of unestablishedallows to reduce considerably the travelling crane dynamics; developed mathematical models of the travelling crane with dynamic damper with harmonic chain reduction gear for load hoisting - lowering operations; results - the regularities have been reveiled taking place by operation of the dynamic damper with harmonic chain reduction gear, that is a part of the hoist mechanism construction, with the travelling crane metallic construction at unestablished motion