自由表面旋涡的识别方法及连铸下渣水模实验研究
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摘要
第一章：简述自由表面旋涡识别对于水利建筑安全、工业生产质效提高具有重要影响。针对目前旋涡识别技术在复杂性及应用性方面存在的问题,提出了一种自由表面旋涡的图像识别方法,对图像识别的旋涡的机理、关键技术及其在连铸下渣检测中的应用进行了深入研究。
第二章：确定了自由表面旋涡识别方法的整体方案设计。搭建了自由表面旋涡识别实验平台,为旋涡形成的机理、流体动力学特性及旋涡的流体形态信息采集、结构识别等研究工作提供物质条件。
第三章：基于伯格斯旋涡理论模型分析了自由表面旋涡的物理特性、运动规律、旋涡结构。流体空间特征信息在二维平面图像中的表征。提出了一种旋涡的定义及描述方式,为旋涡的图像识别提供依据。
第四章：研究了分析自由表面旋涡的二维图像特征,实现旋涡图像的预处理、特征识别、特征分析及旋涡识别。通过实验结果,分析了该自由表面旋涡识别方法的稳定、有效及局限性。
第五章：提出了一种将自由表面旋涡识别方法应用于钢水连铸过程中的下渣检测方案。将自由表面旋涡识别方法应用于钢水连铸过程中转炉及大包中液面旋涡的识别及其特征参量提取。设计了基于人工神经网络的下渣检测分类器,通过旋涡特征参量来分析判断下渣状态实现正确分类完成下渣检测。根据流体相似性原理搭建了大包出钢水模实验硬件平台,结合Visual C++的集成开发环境与基于COM的流媒体处理开发包完成了下渣检测应用软件平台。水模实验及现场结果均表明,自由表面旋涡识别方法及其在连铸下渣检测中的应用均具有可行性和有效性。
第六章：总结了本文的研究工作创新点及成果,对尚未解决的技术问题进行阐述,并展望以后的研究工作内容。
Chapter one:Free-surface vortex recognition have important implications for water conservancy construction safety, industrial production quality and efficiency. Vortex iden-tification technique is hard to achieve and put into application because of complexity. So a free-surface vortex image recognition method was proposed, and the vortex recognition mechanism, key technology and its application in the continuous casting slag detection were in-depth investigated.
Chapter two:The program of the free-surface vortex identification method and struc-tures of identification experiment platform, the mechanism of vortex formation was full-filled. It's provided us a good research conditions to collect vortex fluid information for identification.
Chapter three:Using burgers vortex-based theoretical model to analyze free-surface vortex,we got the physical characteristics, the law of motion and the structure of vortex and find out mapping relationship between two-dimensional image information and fluid information in space. Also we proposed a definition of a vortex and how to describe it which provided the basis for image recognition of the vortex.
Chapter four:Analysizing free-surface vortex features in two-dimensional image, we realized the vortex image preprocessing,, feature analysis and feature recognition of the vortex. The experimental results showed that the free surface vortex pattern recognition method was stable and effective.
Chapter five:To present a free-surface vortex identification method which was applied to the solution of ladle slag detection. Slag detection system that based on the free-surface vortex identification was designed. Free-surface vortex identification method was applied to the vortex detection and its characteristic parameters extraction in continuous casting process.Design a vortex characteristics classifier based on the artificial neural network, which could correctly classify vortex state to fulfiil slag detection. According to the fluid similarity theory, we built a ladle taping model experiment platform, and achieved slag de-tection application software platform with Visual C++integrated development environment and COM-based streaming media processing package.The experimental results showed that the free surface vortex identification method and its application was feasible and effective.
Chapter six:Summarizing innovations and achievements of research, we described unresolved technical problems and looked forward to future research.
第二章：确定了自由表面旋涡识别方法的整体方案设计。搭建了自由表面旋涡识别实验平台,为旋涡形成的机理、流体动力学特性及旋涡的流体形态信息采集、结构识别等研究工作提供物质条件。
第三章：基于伯格斯旋涡理论模型分析了自由表面旋涡的物理特性、运动规律、旋涡结构。流体空间特征信息在二维平面图像中的表征。提出了一种旋涡的定义及描述方式,为旋涡的图像识别提供依据。
第四章：研究了分析自由表面旋涡的二维图像特征,实现旋涡图像的预处理、特征识别、特征分析及旋涡识别。通过实验结果,分析了该自由表面旋涡识别方法的稳定、有效及局限性。
第五章：提出了一种将自由表面旋涡识别方法应用于钢水连铸过程中的下渣检测方案。将自由表面旋涡识别方法应用于钢水连铸过程中转炉及大包中液面旋涡的识别及其特征参量提取。设计了基于人工神经网络的下渣检测分类器,通过旋涡特征参量来分析判断下渣状态实现正确分类完成下渣检测。根据流体相似性原理搭建了大包出钢水模实验硬件平台,结合Visual C++的集成开发环境与基于COM的流媒体处理开发包完成了下渣检测应用软件平台。水模实验及现场结果均表明,自由表面旋涡识别方法及其在连铸下渣检测中的应用均具有可行性和有效性。
第六章：总结了本文的研究工作创新点及成果,对尚未解决的技术问题进行阐述,并展望以后的研究工作内容。
Chapter one:Free-surface vortex recognition have important implications for water conservancy construction safety, industrial production quality and efficiency. Vortex iden-tification technique is hard to achieve and put into application because of complexity. So a free-surface vortex image recognition method was proposed, and the vortex recognition mechanism, key technology and its application in the continuous casting slag detection were in-depth investigated.
Chapter two:The program of the free-surface vortex identification method and struc-tures of identification experiment platform, the mechanism of vortex formation was full-filled. It's provided us a good research conditions to collect vortex fluid information for identification.
Chapter three:Using burgers vortex-based theoretical model to analyze free-surface vortex,we got the physical characteristics, the law of motion and the structure of vortex and find out mapping relationship between two-dimensional image information and fluid information in space. Also we proposed a definition of a vortex and how to describe it which provided the basis for image recognition of the vortex.
Chapter four:Analysizing free-surface vortex features in two-dimensional image, we realized the vortex image preprocessing,, feature analysis and feature recognition of the vortex. The experimental results showed that the free surface vortex pattern recognition method was stable and effective.
Chapter five:To present a free-surface vortex identification method which was applied to the solution of ladle slag detection. Slag detection system that based on the free-surface vortex identification was designed. Free-surface vortex identification method was applied to the vortex detection and its characteristic parameters extraction in continuous casting process.Design a vortex characteristics classifier based on the artificial neural network, which could correctly classify vortex state to fulfiil slag detection. According to the fluid similarity theory, we built a ladle taping model experiment platform, and achieved slag de-tection application software platform with Visual C++integrated development environment and COM-based streaming media processing package.The experimental results showed that the free surface vortex identification method and its application was feasible and effective.
Chapter six:Summarizing innovations and achievements of research, we described unresolved technical problems and looked forward to future research.
引文
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