平板电磁成形中匀压力线圈失效分析  

Failure Analysis of the Uniform Pressure Coil in Electromagnetic Bulging Process

作　　者：胡婷婷[1] 胡建华[1] 程然[1] 黄尚宇[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2011年第6期21-25,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50875192);载运工具与装备教育部重点实验室开放基金

摘　　要：电磁成形过程中,成形线圈受应力场、温度场及电磁场综合作用。采用有限元分析软件ANASYS进行磁场-温度场,磁场-应力场耦合分析,综合考虑应力、载荷条件与疲劳强度系数等疲劳影响因素,基于线性累积损伤理论和随机Miner准则,使用Fatigue Tool疲劳分析工具对线圈进行疲劳寿命估算,并根据分析结果对线圈结构参数进行了改进,对比原始均匀压力线圈,改进后线圈寿命有所提高。In the electromagnetic forming process,there are combined effects of the stress field,temperature field and electromagnetic field on the tool coil.The magnetic-temperature coupled field and the magnetic-stress coupled field were simulated by ANSYS,considering the effects of the stress,loading conditions and fatigue strength coefficient.According to the fatigue stress-life method,the fatigue life of the coil was predicted by the Fatigue Tool module based on the linear cumulative damage theory and the random Miner criteria,The fatigue life of the modified coil was increased compared with the original uniform press coil.

关 键 词：均匀压力线圈 有限元分析 温度场 应力场 疲劳寿命 

分 类 号：TG391[金属学及工艺—金属压力加工]