摘要
根据强度原则,用有限元静力分析方法优化了馈线系统直线段管中的圆管和波纹管相关结构的设计参数;根据能量准则,通过特征值屈曲分析和非线性屈曲分析方法,用有限元法稳定性的判据计算出长跨度的薄壳直线段管发生失稳时的临界载荷为1.21MPa,验证了该结构在正常工况(安全系数为12.1)和故障状态工况(安全系数为6.05)下不会发生失稳现象,为ITER馈线系统的下一步研制提供了基础。
Based on the stress intensity principle, the structure dimensions of the straight-line duct for the ITER feed-through have been optimized by FEM static analysis. The analyses of eigen buckling and non-linearity buckling have been done depending on the FEM stability criterion, and the critical pressure load is 1.21MPa. The structure safety under the normal operation condition （safety coefficient 12.1） or fault operation condition （safety coefficient 6.05） has been tested by our results, which are the foundation of the further engineering development.
出处
《核聚变与等离子体物理》
EI
CAS
CSCD
北大核心
2008年第2期146-149,共4页
Nuclear Fusion and Plasma Physics
基金
国家“973”计划资助课题(2004CB720704)
