bridge crane

Effect of vertical (parametric) fluctuations trolley bridge crane on its dynamics in cargo rocking in the process of starting / braking

The article deals with the pendular oscillations of the load on the flexible drop (rope) of the bridge crane during its start up/braking. The influence of the vertical (parametric) oscillations of the load wagon on the dynamics of the “loading wagon – rope - load” system is taken into consideration.

Wave Effects in revised calculations of dynamic loads crane hardware at start / brake bridge cranes.

The specified calculations for dynamic crane steel structures loadings of bridge cranes in processes of their start-up/braking are presented. Possible wave formations in a bridge crane beam when cargo truck driving on it are taken into consideration; they result into the emergence of (wave) resistance power.