Stability Analysis of Mobile Crane During Wind Induced Load Sway

This paper concerns the analysis of the stability of a mobile crane, taking into account the deformability of the cable system and the influence of external forces. The deformability of the rope was introduced by the use of the Kelvin-Voigt model, while the wind force was determined by the formula for the aerodynamic resistance. Tracking the center of mass of the entire system with respect to the tipping contour was chosen as the stability criterion. Several cases of the working cycle with different duration or parameters of wind force were analyzed. The results are presented in the form of the projection of the center of mass on the plane of rotation. The influence of issues such as the spherical movement of the load, wind pressure or rope deformation on the criterion of work safety was determined.