岸边集装箱起重机部件应力寿命分析及在线可视化技术研究
发布时间：2018-11-17 20:00
【摘要】：岸边集装箱起重机（简称岸桥）是港口码头作业的核心设备，因是在露天作业，现场工作环境恶劣，导致设备容易发生故障、损坏等，需要对岸桥进行实时监控并进行故障预警。起重机管理系统CMS(Crane Management System)是安装于岸桥上的监控系统，可对岸桥的运行状态实时地监控并及时地显示出故障信息，但目前CMS系统无法监控岸桥钢结构各部分的应力状态，钢丝绳作为岸桥作业的关键部件，容易发生疲劳断裂，一旦断裂将会引发巨大的灾难事故。基于以上考虑，本论文开展了基于现场CMS系统信息的岸边集装箱起重机应力在线可视化以及根据钢丝寿命来预测钢丝绳剩余疲劳寿命的方法的研究。 首先，研究了岸桥钢结构及钢丝绳在不同工况下的应力分析的方法。建立了岸桥钢结构及钢丝绳的有限元模型，分析了岸桥钢结构及钢丝绳在不同工况下的应力分布情况，获得应力分析结果，为后续工作提供支持。 其次，在钢丝绳应力分析的基础上对钢丝绳进行了疲劳寿命分析，提出了依据钢丝绳断丝数与钢丝绳疲劳寿命之间的关系分析钢丝绳疲劳寿命的方法，基于理论计算得到钢丝绳钢丝的S-N曲线，并结合提升过程中动载加速度测量实验得到钢丝绳的载荷谱文件，在Workbench中对钢丝绳进行疲劳寿命分析，计算钢丝疲劳寿命值，再分析得到钢丝绳的疲劳寿命值。 再次，研究了应力在线计算及可视化的方法，，基于岸桥CMS系统的运行数据实现虚拟岸桥系统与真实岸桥系统的“同步”作业仿真，在作业过程实时插值计算得到当前时刻钢结构的应力值并映射成颜色进行动态显示。 最后，基于以上工作基础开发了岸边集装箱起重机作业及应力在线可视化仿真系统，实时显示岸桥钢结构及钢丝绳的应力状态，并实时显示钢丝绳的已作业箱数以及剩余作业箱数，实现对钢丝绳剩余寿命的预测。该系统有助于岸桥维护人员直观的看到岸桥作业过程中各部分应力的变化情况，尤其是关键部位的应力情况，可以为岸桥运维方案的制定提供辅助信息。
[Abstract]:Quayside container crane (quayside crane) is the core equipment of port and wharf operation. It is necessary to carry out real-time monitoring and fault warning of the shore bridge. The crane management system (CMS (Crane Management System) is a monitoring system installed on the shore bridge, which can monitor and display the fault information in real time. But at present, the CMS system can not monitor the stress state of each part of the steel structure of the bank bridge. As a key component of shore bridge operation, steel wire rope is prone to fatigue fracture, once it breaks, it will lead to a huge disaster. Based on the above considerations, this paper studies the on-line visualization of the stress of the quayside container crane based on the field CMS system information and the method of predicting the residual fatigue life of the wire rope according to the steel wire life. Firstly, the stress analysis method of the steel structure and wire rope under different working conditions is studied. The finite element model of the steel structure and wire rope of the quayside bridge is established, and the stress distribution of the steel structure and the wire rope of the shore bridge under different working conditions is analyzed, and the results of stress analysis are obtained, which provide support for the subsequent work. Secondly, the fatigue life of wire rope is analyzed on the basis of the stress analysis of wire rope, and the method of analyzing the fatigue life of wire rope is put forward according to the relationship between the number of wire rope broken and the fatigue life of wire rope. Based on the theoretical calculation, the S-N curve of steel wire rope is obtained, and the load spectrum file of wire rope is obtained by combining with the dynamic acceleration measurement during hoisting process. The fatigue life of wire rope is analyzed in Workbench, and the fatigue life value of steel wire is calculated. The fatigue life of wire rope is obtained by reanalysis. Thirdly, the method of on-line stress calculation and visualization is studied. Based on the running data of CMS system, the simulation of virtual bank bridge system and real shore bridge system is realized. The stress values of the steel structure at the present time are calculated by interpolation in real time during the operation process and are mapped to color for dynamic display. Finally, based on the above work foundation, the on-line visualization simulation system of quayside container crane operation and stress is developed, which can display the stress state of the steel structure and wire rope of the quayside bridge in real time. The number of working boxes and the number of remaining working boxes of wire rope are displayed in real time to predict the remaining life of wire rope. The system is helpful for the maintenance staff to see directly the stress changes of each part during the operation, especially the stress in the key position, which can provide auxiliary information for the establishment of the operation and maintenance scheme of the shore bridge.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U653.921
本文编号：2338890
[Abstract]:Quayside container crane (quayside crane) is the core equipment of port and wharf operation. It is necessary to carry out real-time monitoring and fault warning of the shore bridge. The crane management system (CMS (Crane Management System) is a monitoring system installed on the shore bridge, which can monitor and display the fault information in real time. But at present, the CMS system can not monitor the stress state of each part of the steel structure of the bank bridge. As a key component of shore bridge operation, steel wire rope is prone to fatigue fracture, once it breaks, it will lead to a huge disaster. Based on the above considerations, this paper studies the on-line visualization of the stress of the quayside container crane based on the field CMS system information and the method of predicting the residual fatigue life of the wire rope according to the steel wire life. Firstly, the stress analysis method of the steel structure and wire rope under different working conditions is studied. The finite element model of the steel structure and wire rope of the quayside bridge is established, and the stress distribution of the steel structure and the wire rope of the shore bridge under different working conditions is analyzed, and the results of stress analysis are obtained, which provide support for the subsequent work. Secondly, the fatigue life of wire rope is analyzed on the basis of the stress analysis of wire rope, and the method of analyzing the fatigue life of wire rope is put forward according to the relationship between the number of wire rope broken and the fatigue life of wire rope. Based on the theoretical calculation, the S-N curve of steel wire rope is obtained, and the load spectrum file of wire rope is obtained by combining with the dynamic acceleration measurement during hoisting process. The fatigue life of wire rope is analyzed in Workbench, and the fatigue life value of steel wire is calculated. The fatigue life of wire rope is obtained by reanalysis. Thirdly, the method of on-line stress calculation and visualization is studied. Based on the running data of CMS system, the simulation of virtual bank bridge system and real shore bridge system is realized. The stress values of the steel structure at the present time are calculated by interpolation in real time during the operation process and are mapped to color for dynamic display. Finally, based on the above work foundation, the on-line visualization simulation system of quayside container crane operation and stress is developed, which can display the stress state of the steel structure and wire rope of the quayside bridge in real time. The number of working boxes and the number of remaining working boxes of wire rope are displayed in real time to predict the remaining life of wire rope. The system is helpful for the maintenance staff to see directly the stress changes of each part during the operation, especially the stress in the key position, which can provide auxiliary information for the establishment of the operation and maintenance scheme of the shore bridge.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U653.921
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