虹吸式离心机转鼓结构的有限元应力分析Finite Element Stress Analysis on Siphon-peeler Centrifuge Basket
刘东杰,陈志,李建明,曹蕾,贾江宁,董国光,郝静
LIU Dong-jie,CHEN Zhi,LI Jian-ming,CAO Lei,JIA Jiang-ning,DONG Guo-guang,HAO Jing(Sichuan University
摘要(Abstract):
利用ANSYS有限元软件建立了虹吸离心机转鼓的二维有限元模型,对其在正常工作状态下的整体结构进行了应力分析,得到了转鼓的径向、轴向变形和应力分布,以及最大应力点,并对局部应力进行了进一步的分析。结果表明原设计的虹吸式离心机转鼓的强度和刚度均满足要求,但是在拦液板和转鼓底边缘的设计过于保守,因此在保证强度和刚度的前提条件下,减少了其边缘连接处的厚度。
Finite element analysis software-ANSYS is adopted to establish the two-dimensional finite element model for the basket of a siphon-peeler centrifuge.The stress of the whole basket structure was analyzed under ordinary working conditions.The basket's radial and axial deformations,as well as the distribution of stress and the maximum force position were found out.A further analysis of the local stress has been carried out.Results show that both the intensity and the stiffness assessments of the basket can satisfy the needs.However,the design for the basket lip and the basket bottom is too conservative.As a result,it is more reasonable to diminish the thickness of the rim's joint point under the circumstance of ensuring the intensity and the stiffness.
关键词(KeyWords):
虹吸式;离心机;转鼓;有限元
siphon-peeler centrifuge;basket;finite element
基金项目(Foundation):
作者(Author):
刘东杰,陈志,李建明,曹蕾,贾江宁,董国光,郝静
LIU Dong-jie,CHEN Zhi,LI Jian-ming,CAO Lei,JIA Jiang-ning,DONG Guo-guang,HAO Jing(Sichuan University
参考文献(References):
- [1]余国琮.化工机械工程手册(中卷)[M].北京:化学工业出版社,2003.
- [2]冯立成,周密,易泽明.离心机复杂转鼓的有限元优化计算[J].机械强度,2002,24(2):295-297.
- [3]冯立成,周密,易泽明.虹吸离心机转鼓强度优化设计[J].流体机械,2001,29(7):25-27.
- [4]董俊华,刘忠明,范德顺.卧螺离心机双锥角转鼓结构的有限元分析[J].北京化工大学学报,2004,31(4):99-102.
- [5]孙启才,金鼎五.离心机原理结构与设计计算[M].北京:机械工业出版社,1987.
- [6]谭蔚,王泽军,朱企新.有限元方法在离心机转鼓强度分析中的应用[J].化工机械,2002,29(2):103-107.