摘要PAGE\*MERGEFORMATIPAGE\*MERGEFORMATI摘要随着现代工业的发展，钢板和带钢作为在经济建设中应用最广泛的钢材，对钢铁企业提供的板带钢的尺寸精度和形状精度提出了更高的要求。板带钢的尺寸精度主要指的是纵向厚度差，现在板带钢的尺寸精度的控制技术已经比较成熟，纵向板厚可以控制在5um的范围内。板形精度是指带钢的平直度与板凸度，是带钢的一项主要质量指标和决定其市场竞争力的重要因素。板形控制归根到底是对辊缝的控制。工作辊液压弯辊技术是控制板型的基本方法，其利用液压弯辊来控制辊缝，从而改变板型。液压弯辊控制系统具有精度高、响应速度快、结构紧凑等优点。提高液压弯辊系统的动态品质,对实现高质量的板形自动控制具有重要的理论和实际意义。本论文以650单机架轧机为代表，建立其液压弯辊伺服控制系统，并对其建立数学模型，并运用matlab对其进行仿真，研究并提高其准确性，稳定性，快速性,同时了解各参数对系统的影响。以此来了解弯辊系统的设计思路和机理，为以后的相关研究提供技术支持。关键词板形控制液压弯辊伺服控制系统数学模型仿真燕山大学本科生毕业设计（论文）第1章绪论PAGE\*MERGEFORMAT8PAGE\*MERGEFORMAT7AbstractWiththedevelopmentofmodernindustryandtheenhancement,steelplateandstrip,asthemostwidelyusedsteelineconomicconstruction.Theindustryputsfarwardhigherrequirmentforthedimensionalaccuracyandshapeaccuracyofstripsteel.Thedimensionalaccuracyofsteelplateandstripreferstothetheverticalthicknessprecision.Nowheteachnologyaboutthecontrolofthedimensionalaccuracyismoremature,andtherangeofthedimensionalaccuracyin5um.Theshapeaccuracyofsteelplateandstripreferstothestraightnessandstripsteelplatecrown.Itisamainqualityindexofstripsteelandthemostimportantfactorsthatdeterminesthemarketcompetitivenessoftheenterprise.Shapecontroliscontroloftherollgapinthefinalanalysis.Bendingtheworkrolluseingthehydraulicisthebasicmethodoftheshapecontrol,whichcontroltherollgapbythehydraulicrolltoaffecttheshapeofthesteelplateandstrip.Thehydraulicrollbendingsystemhashighprecision,fastresponsespeed,compactstructure,etc.Improvingdynamicperformanceofthehydraulicbendingrollsystemhasimportanttheoreticalandpracticalsignificancetoachievehighqualityautomaticshapecontrolsystem.The650singlestandmillisdiscussedinthispaper,andwewilldesignthemathematicalmodelaboutthehydraulicservocontrolsystemofbendingroll.Furthermorewewillresearchandimprovetheaccuracy,stabilityandrapidityofthemodelbyusingthematlab.Atthesametime,wewillknowtheeffectsofvariousparametersonthesystem.Throughthispaperwewillknowhowtodesignhydraulicrollbendingsystemandthemechanism,whichprovidingtechn