起重运输机械Issue(2)：58-61,4.
塔式起重机回转运动引起起重臂振动响应分析
摘要
Abstract
The rotary inertia force of the tower crane will cause vibration in the horizontal plane of the boom, which is one of the main reasons for fatigue damage of the crane. According to the motion characteristics of the tower crane in the process of rotary motion, in the paper, it is simplified into a cantilever beam, then the differential equation of motion of the moving mass-cantilever beam system is established, and the influence law of rotary motion on the vibration of the boom is simulated and analyzed. The simulation results show that the vibration amplitude of the boom will increase with the increase of the rotational acceleration; during the acceleration and deceleration of the slewing mechanism, the amplitude and period of the boom vibration and the balance position of the vibration increase with the increase of the length and lifting weight of the wire rope; during the uniform motion of the slewing mechanism, the amplitude and period of the boom vibration and the balance position of the vibration decrease with the increase of the length and lifting weight of the wire rope.关键词
塔式起重机/回转运动/起重臂/振动响应Key words
tower crane/rotary motion/boom/vibration response分类
机械制造引用本文复制引用
张恩,李莉,董明晓..塔式起重机回转运动引起起重臂振动响应分析[J].起重运输机械,2019,(2):58-61,4.基金项目
国家级基金"塔式起重机结构振动与载荷摆动耦合机理及其控制理论研究"(0000601423) （0000601423）
