摘要
根据核电起重机起升机构的特殊构造,建立了核电起重机在吊重离地起升发生断绳故障时机构与桥架结构耦合的弹性多体动力学模型。考虑到2套独立构造、同步驱动吊钩升降的起升卷绕系统的均衡杠杆两端,正常设置受压缓冲装置或假设去掉缓冲装置这2种情况,用Matlab\Simulink工具箱对1根钢丝绳突然断开的故障状态进行仿真对比,验证了核电起重机起升机构设置缓冲减振装置的优越性,其使作业突发故障时机构和主梁结构的振动得到减缓和控制,提高了核电起重机的故障作业安全性。
Based on the special lifting mechanism of the nuclear crane,a flexible multi-body dynamic model for coupling of the mechanism and bridge structure is established for nuclear crane at the time of the rope-breaking failure during lifting.With two independent lifting winding systems for synchronously driving hooks up and down at both ends of the balance lever,two conditions of with or without the damper are considered,with simulation comparison of both conditions under the rope-breaking by Matlab\Simulink tool box,which shows the importance of setting vibration damper on the lifting mechanism of nuclear crane.Such damping device can mitigate and control the vibration of mechanism and girder structure in case of sudden accidents,and improve the operation safety of such cranes.
出处
《起重运输机械》
2013年第5期1-4,共4页
Hoisting and Conveying Machinery
关键词
核电起重机
动态特性
机构与结构多体耦合
减振装置
研究
nuclear crane
dynamic characteristics
multi-body coupling of mechanism and structure
vibration damper
research
