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轧辊 变形 三维 建模 有限元分析 毕业设计

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热连轧辊系变形三维建模及有限元分析毕业设计,轧辊,变形,三维,建模,有限元分析,毕业设计

内容简介：

装订线安徽工业大学 毕业论文摘要热连轧机组承担着生产合格成品带钢的任务。对轧机辊系变形尤其是工作辊变形做出准确的预报和分析，是保证板带材成品截面形状及平直度的先决条件。本课题的主要内容就是要利用大型通用有限元分析软件ANSYS来模拟实际生产的情况并加以分析。具体则体现在以下四个方面：一、在充分了解掌握 ANSYS的基础上，依据四辊轧机辊系变形的特点建立满足精度且又便于计算分析的设计计算模型。二、合理解决在轧制过程中两辊之间的接触问题和轧制区上的非线性加载问题，以提高模型的仿真水平和计算精度。三、利用ANSYS软件的结果后处理功能，分析轧制时影响因素的作用，并对后处理结果进行计算分析。四、学会利用APDL编程开发工具进行设计和分析。关键词：热连轧, 辊系变形, 有限元分析, ANSYS abstractThe hot strip mill is taking to produce eligible strip production in hand .So the exact prediction and analysis of the deflection status of mill roller, especially for work roll is very important. It is a precondition of improving the profile and the flatness of strip.this articles research topic is how to simulate the real condition of production and analysis them with the international using software: ANSYS. Concretely say, it contains the following four aspect:One. On the precondition of mastering ANSYS,establish a suitable model based on the deformation characteristic of 4-high mill which can satisfy the precision of calculation and analysis request.Two. Solve the problem on the aspect of contact and nonlinear loading compatibly, to make sure that the simulation level of model can be elevated.Three. Analyse influence factors action on rolling,using Post-processors function which ANSYS offered, and do research about the result of Post-processor.Four. Learn to use APDL (ANSYS Parametric Language) to design and analysis these problems. Keywords: Hot Continuous Rolling, Deflection of rolls, Finite elements analysis, ANSYS目录1、绪论- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 1.1 四辊轧机发展情况概论- - - - - - - - - - - - - - - - - - - - - - - 1 1.2 辊系变形计算的常用理论与计算方法 - - - - - - - - - - - - - - - - 11.2.1轧辊变形模型的分类 - - - - - - - - - - - - - - - - - - - - - - 11.2.2 二辊轧机的简支梁模型 - - - - - - - - - - - - - - - - - - - - 11.2.3 四辊轧机的简支梁模型 - - - - - - - - - - - - - - - - - - - - 31.2.4分割法模型 - - - - - - - - - - - - - - - - - - - - - - - - - - -51.2.5 有限元分析理论 - - - - - - - - - - - - - - - - - - - - - - - - 81.2.6 二维有限元分析模型 - - - - - - - - - - - - - - - - - - - - - 101.2.7 三维有限元分析模型 - - - - - - - - - - - - - - - - - - - - - 111.3 ANSYS软件 - - - - - - - - - - - - - - - - - - - - - - - - - - - - 131.3.1 ANSYS的工作原理有限单元法 - - - - - - - - - - - - - - - 131.3.2 ANSYS软件简介- - - - - - - - - - - - - - - - - - - - - - - - 141.4 本文主要研究内容及创新 - - - - - - - - - - - - - - - - - - - - - 162、模型设计与计算- - - - - - - - - - - - - - - - - - - - - - - - - - - - 17 2.1辊系模型的建立- - - - - - - - - - - - - - - - - - - - - - - - - - 172.1.1 设计原理- - - - - - - - - - - - - - - - - - - - - - - - - - - -172.1.2 模型设计- - - - - - - - - - - - - - - - - - - - - - - - - - - -172.2接触区域的划分- - - - - - - - - - - - - - - - - - - - - - - - - - -19 2.2.1 设计原理- - - - - - - - - - - - - - - - - - - - - - - - - - - -19 2.2.2 模型设计- - - - - - - - - - - - - - - - - - - - - - - - - - - -202.3分析模型的建立- - - - - - - - - - - - - - - - - - - - - - - - - - -232.3.1 单元的选取- - - - - - - - - - - - - - - - - - - - - - - - - - 232.3.2 材料特性的定义- - - - - - - - - - - - - - - - - - - - - - - -24 2.3.3 模型设计 - - - - - - - - - - - - - - - - - - - - - - - - - - - 24 2.4 边界条件的确定及加载- - - - - - - - - - - - - - - - - - - - - - - 282.4.1边界条件的确定- - - - - - - - - - - - - - - - - - - - - - - - -282.4.2 加载- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 283、结果后处理- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31 3.1 辊系变形情况- - - - - - - - - - - - - - - - - - - - - - - - - - - -32 3.2支承辊和工作辊的挠曲线- - - - - - - - - - - - - - - - - - - - - - 38 3.3 支承辊和工作辊的弹性压扁曲线- - - - - - - - - - - - - - - - - - -44 3.4 接触面上的接触压力分布- - - - - - - - - - - - - - - - - - - - - - 47 3.5 绘制轧件表面变形曲线- - - - - - - - - - - - - - - - - - - - - - - 52 3.6 图形数据分析- - - - - - - - - - - - - - - - - - - - - - - - - - - -54 3.6.1 对辊系变形情况的分析- - - - - - - - - - - - - - - - - - - - - -543.6.2. 支承辊和工作辊的挠度分析- - - - - - - - - - - - - - - - - - -553.6.3 弹性压扁曲线的计算分析- - - - - - - - - - - - - - - - - - - - -573.6.4 接触面接触应力的分析- - - - - - - - - - - - - - - - - - - - - -583.6.5板带凸度分析- - - - - - - - - - - - - - - - - - - - - - - - - - -593.6.6综合分析- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -59结论- - - - - - - - - -