【作者】 王飞；

【导师】 陈奎生；

【作者基本信息】 武汉科技大学 ， 机械电子工程， 2002， 硕士

【摘要】 在现代钢铁企业中，结晶器是炼钢工艺的关键设备，同时为了保证连铸生产的顺利进行，需要通过一个振动装置使结晶器按一定的规律振动。目前国外已广泛采用了先进的液压式振动，而国内对此研究甚少。针对这种情况，本学位论文围绕结晶器液压振动装置进行了研究。 本文对连铸机结晶器振动装置进行了分析和抽象，利用功率键合图理论对其进行了模型研究，建立了系统状态方程。利用仿真软件MATLAB进行了仿真研究，分析了影响系统动态特性的诸多因素，给出了改进系统性能的措施。 本文将分布式、网络式控制的思想引入到连铸结晶器液压控制系统中，采用PLC及其网络组建了结晶器液压振动装置的集散控制系统，给出了工控系统的组成单元，并提出了具体的技术方案。这种控制方式和直接数字控制系统或监督控制系统相比，可以大大提高系统的安全性，降低现场布线的复杂程度，而且扩展方便。另外，本文还对控制系统中的控制器、数据库技术进行了深入的研究。 本文对结晶器液压振动装置的在线监测与故障诊断进行了初步的理论研究，提出了监测对象、监测方法和故障诊断的基本思想，并且结合虚拟仪器技术，分析了在线监测软件的人机接口界面及程序流程，为以后的研究工作奠定了基础。更多还原

【Abstract】 Mould is a very important equipment of steel-making technics in modern iron and steel enterprise, and in order to ensure that continuous casting production runs successfully, an oscillation device is needed. It drives mould move under a decided oscillation rule. At present, oscillation driven by hydraulic pressure is adopted in foreign country. But in our country study about that is little. Aim at this status, theory study about oscillation driven by hydraulic pressure is developed in this paper.Mould oscillation device is analyzed and summarized in this paper. The mathematics model of oscillation driven by hydraulic pressure is founded using bond graph theory and its system state equation is detruded. Simulate study about the model is done using MATLAB software. In this model, many factors that have a strong impact on the system are considered.In this paper, the thinking of distributing and network control is introduced to electronic-hydraulic servo system. The DCS of oscillation driven by hydraulic pressure is set up with PLC and its net. The composing cell is put forward. Compared with DDC or SCC, this control system can improve security and reduce complexity of installation. In addition, controller and data-base technology are studied deeply in this paper.In this paper, primary study about online monitor and fault diagnosis of mould oscillation device driven by hydraulic pressure is developed. Examine object, monitor method and thinking of fault diagnosis are put forward. HMI and program flow chart of online monitor software is discussed combined with virtual instrument technology. The study is a base for advanced work.更多还原