Analysis and Control the Influence Factors on the Dynamic Load Coefficient of the Crawler Crane Working Mechanism

To obtain the concise relationship between the dynamic load and its influence factors, the single degree-of-freedom system was applied to simplify the crane working mechanism. Based on the sloping load, this paper analysed the main influence factors on the dynamic load and two relations were obtained:the relation between the dynamic load coefficient and the loading time;the other between the dynamic load coefficient and the natural vibration period. Due to the previous calculation and analysis, the suitable loading time and the dynamic load coefficient within the engineering permissible range were also obtained. The stiffness formula based on the loading time of the system’s elastic component was originally put forward. The result provided not only reliable basis to obtain the geometric parameter of the elastic component, but also feasible measures to prevent the dynamic load from increasing. Hence, it is effective to ensure the stable running of the equipment.