应力释放扁挤压筒的优化设计  

Optimal Structural Design of Flat Container by Stress Release

作　　者：尹君[1] 成小乐[1,2] 胥光申 屈银虎[1] YIN Jun;CHENG Xiaole;XU Guangshen;QU Yinhu(School of Mechanical and Electrical Engineering,Xi＇ an Polytechnic University,Xi＇ an 710048,China;State Key Laboratory of Metal Extrusion and Forging Equipment Technology,Xi＇an 710032,China)

机构地区：[1]西安工程大学机电工程学院,西安710048 [2]金属挤压锻造装备技术国家重点实验室,西安710032

出　　处：《西安交通大学学报》2018年第7期146-152,共7页Journal of Xi'an Jiaotong University

基　　金：国家重点基础研究发展计划资助项目(2010CB736004);西安工程大学研究生创新基金资助项目(CX201705)

摘　　要：利用材料力学中的力线平移定理并结合有限元方法,综合分析了扁挤压筒优化设计中孔型、层间过盈量、层厚等结构优化参数对扁挤压筒应力分布的影响;提出了一种扁挤压筒内应力分布优化的新方法,可应用于一般扁挤压筒的设计;通过分析扁挤压筒的内应力分布情况,提出了一种应力释放扁挤压筒新结构。通过有限元模拟分析验证,得到了较为合理的扁挤压筒新结构的外套宽度和层间过盈量,可使扁挤压筒应力峰值降低5%以上,从而可提高扁挤压筒的使用寿命。此项研究可为优化扁挤压筒结构及装配提供参考。Based on force line translation theorem and finite element method,the stress distribution in the internal surface of flat container was studied,and a new flat container structure was proposed to release its stress concentration.The reasonable width and interference of the new structure were obtained with a suppression of the stress peaks by 5%,so the new structure of flat container can improve its service life.The proposed flat container may provide a reference for optimizing the structure design and assembling of flat containers.

关 键 词：扁挤压筒 结构优化 过盈量 

分 类 号：TG375[金属学及工艺—金属压力加工]