S31型罗茨鼓风机叶轮热变形分析及优化设计  

Thermal Deformation Analysis and Optimization Design of S31 Type Roots Blower Impeller

作　　者：周志海 胡永乐[1] Zhi-haiZhou;Yong-le Hu(College of Automotive and Mechanical Engineering,Changsha University of Science and Technolog)

机构地区：[1]长沙理工大学汽车与机械工程学院,长沙湖南410114

出　　处：《风机技术》2018年第4期45-51,共7页Chinese Journal of Turbomachinery

基　　金：湖南省教育厅重点资助科研项目:<罗茨鼓风机动态特性分析和结构优化研究>(NO:14A003)

摘　　要：针对S31型罗茨鼓风机叶轮受温度影响发生变形的问题,结合虚拟样机技术、有限元分析技术和热应力学理论,使用SolidWorks建立S31型罗茨鼓风机叶轮的虚拟样机模型,通过SolidWorks与ANSYS Workbench的无缝链接,建立叶轮有限元模型,基于有限元理论对叶轮进行热一结构耦合分析,得到叶轮的温度场分布和热变形。在热分析的基础上,为得到最小的叶轮最大变形量,通过改变叶轮内径尺寸,采用迭代法进行优化,为S31型罗茨鼓风机叶轮的设计提供有用的理论依据。Based on the virtual prototyping technology, finite element analysis technique and thermal stress theory, the virtual prototype model of the S31 type Roots blower was established by using SolidWorks. Based on SolidWorks and ANSYS Workbench, the simulation results show that the impeller of S31 Roots blower is affected by temperature. The finite element model of the impeller is established, and the themlal deformation analysis of the impeller is carried out based on the finite element theory. The temperature field distribution and themlal deformation of the impeller are obtained. On the basis of thermal analysis, the maximum deformation of the impeller is the smallest target, which is optimized by changing the impeller inner diameter and the iterative method which provides a useful theoretical basis for the design of roots blower.

关 键 词：罗茨鼓风机 叶轮 热变形分析 优化设计 

分 类 号：TH444[机械工程—机械制造及自动化] TK05[动力工程及工程热物理]