压力容器2012，Vol.29Issue(9)：24-27,6,5.DOI:10.3969/j.issn.1001-4837.2012.09.005
热-机械载荷下厚壁圆筒自增强压力优化分析
Investigation on Autofrettage of Thick Cylinder under Internal Pressure and Thermal Load
摘要
Abstract
The optimum autofrettage pressure of thick - walled cylinders under thermo - mechanical loadings was analyzed. The theoretical solutions were compared with those numerical results obtained by the optimization analysis based on ANSYS. The results indicated that the analytic solutions of the optimum autofrettage pressure are in good agreement with the numerical solutions and the maximum error is less than 1 % . Moreover, without considering the effect of thermal load, autofrettage may increase the difference of the equivalent stress between the inner and outer wall, which decreases the fatigue strength of thick cylinders. The analytic solution of the optimum autofrettage pressure can be used for engineering designs to improve the load - carrying capacity of thick cylinders.关键词
厚壁圆筒/自增强/疲劳/ANSYSKey words
thick cylinder/autofrettage/fatigue/ANSYS分类
机械制造引用本文复制引用
郑小涛,王彪,喻九阳,彭常飞,王明伍..热-机械载荷下厚壁圆筒自增强压力优化分析[J].压力容器,2012,29(9):24-27,6,5.基金项目
国家自然科学基金项目(50976080) （50976080）
武汉工程大学科学研究基金项目(14125061) （14125061）
