科技视界
科技視界
과기시계
Science&Technology Vision
2015年
11期
124-125
,共2页
防摇%小车吊重系统%动力学模型%仿真
防搖%小車弔重繫統%動力學模型%倣真
방요%소차조중계통%동역학모형%방진
Anti-swing%Trolley-load system%Dynamic model%Simulation
消除或控制吊重的摇摆对提高起重机的工作效率、减少装卸作业安全隐患具有重要意义，掌握吊重摆动的动力学特性是研究起重机防摇控制的前提条件。本文建立了小车-吊重系统的动力学模型，并以此模型进行了多种工况下的动态仿真。通过仿真分析得到了小车加速度和吊重绳长对吊重摆角和摆动频率的影响规律。
消除或控製弔重的搖襬對提高起重機的工作效率、減少裝卸作業安全隱患具有重要意義，掌握弔重襬動的動力學特性是研究起重機防搖控製的前提條件。本文建立瞭小車-弔重繫統的動力學模型，併以此模型進行瞭多種工況下的動態倣真。通過倣真分析得到瞭小車加速度和弔重繩長對弔重襬角和襬動頻率的影響規律。
소제혹공제조중적요파대제고기중궤적공작효솔、감소장사작업안전은환구유중요의의，장악조중파동적동역학특성시연구기중궤방요공제적전제조건。본문건립료소차-조중계통적동역학모형，병이차모형진행료다충공황하적동태방진。통과방진분석득도료소차가속도화조중승장대조중파각화파동빈솔적영향규률。
Eliminating and controlling the swing of loads is very important for increasing the work efficiency of crane as well as decreasing safety hazard during loading and unloading operation.The dynamic characteristic of load sway is the precondition for studying the anti-swaing control plan for gantry crane.A dynamic model of trolley load system is developed in this paper.Different working states of crane are simulated with this dynamic model.Simulation results show the influences of trolley acceleration and rope length on the swing angle and frequency.
