塔式起重机载荷摆振模型

塔式起重机载荷摆振使载荷难以准确就位并给整个塔式起重机造成周期性的倾矩和扭矩。本文建立了塔式起重机载荷摆振的精确数学模型；在工程实用范围内导出了简化模型；依据模型对塔式起重机的动态特性做了定性和定量的分析。该模型可做为研究塔式起重机的动态特性、提高变幅速度和回转速度、寻找消除载荷摆振方法的工具。其中精确模型特别适用于计算机仿真。

MATHEMATICAL MODEL OF THE LOAD VIBRATION-SWAY ON FIXED TYPE TOWER CRANES

The vibration and sway of the load in a fixed type tower crane makes it difficult for the load to take its place accurately, and brings the toppling moment and the running torque of shock for a whole tower crane. In the paper the authors set up the cacurate mathematical model of the load vibration-sway on fixed type tower cranes. A simplified model are derived in the engineering range. This mathematical model can be used as means for studying the dynamic characteristic of fixed type tower cranes, increasing the load vibration-sway, and improving the function of fixed type tower cranes. Especially the accurate mathematical model is suitable for a computer simulation.