摘要
各压力容器标准关于外压计算长度的规则存在一些差异,对比了GB 150—2011、ASMEⅧ-1和EN 13445-3标准中筒-锥结构的外压计算长度,提出了一种合理可行的当量方法,改进了筒-锥结构外压计算长度的计算方法。有限元模拟计算表明:当锥壳的半锥角α<30°时,使用该当量方法计算得到的筒-锥结构外压计算长度是保守可行的。
The pressure vessel standards about external pressure calculation length differ.Through comparing external pressure calculation length of the cylindrical-conical shell stipulated in GB 150—2011,ASMEⅧ-1 and EN 13445-3,an equivalent method for cylindrical-conical shell was presented to improve the calculated length.Results show that,the calculated length for cylindrical-conical shell is feasible when taking half-coned angleα<30°.
作者
叶凌伟
汪斌
刘会彬
YE Ling-wei;WANG Bin;LIU Hui-bin(Zhejiang Academy of Special Equipment Science,Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province)
出处
《化工机械》
CAS
2022年第6期962-968,973,共8页
Chemical Engineering & Machinery
基金
浙江省市场监督管理局“雏鹰计划”培育项目(CY2022219)。
关键词
压力容器
标准
外压屈曲
筒-锥结构
计算长度
有限元
pressure vessel
standards
bucking under external pressure
cylindrical-conical shell
calculated length
FEA
