摘要
基于有限元理论,应用Patran软件创建FL-61风洞壳体的有限元模型,分析其在极限压力工况下整体结构的刚强度情况;并与气压试验结果进行了对比。结果表明:在气压试验载荷作用下,风洞壳体的变形及应力计算结果与试验结果基本吻合。验证了有限元计算中对风洞模型进行的简化处理、选用的单元类型、边界和载荷条件的施加合理可行,风洞壳体的刚强度满足设计使用要求。
The finite element model of FL-61 wind tunnel is established,using the software of Patran,based on the method of finite element. The deformation and stress distribution of the wind tunnel shell are analyzed under the condition of ultimate pressure. The analysis results are compared with the gas pressure test. It shows that the deformation and stress of the wind tunnel shell which is calculated in software is approximately same as the pressure test result. In addition,the compared result shows that the processing methods of simplified model and adopting the element form are feasible,the boundary restrict and loads are reasonable,and the wind tunnel shell satisfy its requirement.
出处
《科学技术与工程》
北大核心
2017年第8期303-306,共4页
Science Technology and Engineering
关键词
洞体回路
有限元法
应力分析
气压试验
wind tunnel structure
finite element method
stress analysis
gas pressure test
