Dynamic responses of a gantry crane system due to a moving body considered as moving oscillator

This paper discusses a combined finite element and analytical method for obtaining transverse and longitudinal vibrations of a gantry crane system subjected to an elastically suspended moving body. The two-dimensional inertial effects of the moving body are included in derivation of differential equation of motion for the system. Factors as speed, acceleration and suspension characteristics of a moving body are studied, including the influence of structural damping. The obtained results validate the presented approach and can be used in the design process of gantry cranes.