基于ANSYS的三维建模方法与热挤压模具的优化设计 1).pdf

Journal of Mec anical Strengt 机械强度 2004,26(3) :345~ 348 ANSYS METHOD OF THREE DIMENSIONAL MODEL AND OPTIMUM DESIGN OF HOT EXTRUSION MOULD BASED ON ANSYS ( 中南大学 机电工程学院,长沙410083) SHUAI CiJun NI ZhengShun ( College of Mechanical and Electronic Engineering, Central South University, Changsha, 410083, China) ANSYS , ANSYS para- metric design language(APDL) ,, ,, , , , T 3754 TP39172 Abstract Extrusion mould often takes place crack at bridgesA three dimensional model of hot extrusion diewas achieved by us- ing ANSYS software and its second development language ANSYS parametric design language (APDL)The finite element analysis and optimum design were carried throughIts three dimensional stress diagram is achievedIt is found that the stress convergence is rather severe in the bridge of the hot extrusion mould, and that the stress distribution is very unevenThe optimal dimensions have been ob- tainedThe stress convergence is reducedIts life-span is prolonged Key words T ree dimensional model;Hot extrusion mould; Optimum design Corresponding author: SH UAI CiJun, E mail: shuaicij un @163com, Tel: + 86 731 8836858, Fax: + 86 731 8879044 The project supported by the Research Fund for the Doctoral Program of Higher Education of China ( No20010533010) . Manuscript received in revised form 1 引言 2 实体模型 , 1 , D 227000mm, H 80000mm, [1, 2] , , 1) P P