摘要
建立钛-钢复合管板与普通碳钢管板模型,运用有限元分析软件ANSYS,分别考察两种模型在管壳程设计压力、设计温度和设计压力设计温度共同作用3种工况下,管板的机械应力、热应力和总应力的分布情况,并进一步对比分析得出钛-钢复合管板的应力分布特点。结果显示,与相同管板厚度的普通碳钢管板相比,复合管板机械应力增大、热应力减小、总应力增加。相同基层厚度条件下,增加复层厚度,机械应力下降、热应力增加、总应力减小。3种工况下,复合管板基层与复层结合处均出现应力集中现象,分析结果为复合管板的设计提供了参考。
The models of TA clad steel tube sheet and ordinary carbon steel tube sheet were established, and finite element analysis software ANSYS was used. Under conditions of design pressure, design temper- ature, design pressure and temperature interacted with each other, the distribution of mechanical stress, thermal stress and total stress of the two tube sheets were investigated, respectively. Through comparison and analysis, the stress distribution characteristics of TA clad steel tube sheet were obtained. Results show：compared to ordinary carbon steel tube sheet, the mechanical stress and total stress of clad steel tube sheet increase, but the thermal stress decreases when the thicknesses of them are same. Under the same thickness of base layer, with the increase of clad layer, the mechanical stress and total stress of clad steel tube sheet decrease ; yet, the thermal stress increases. The connection of basic layer and clad layer all presents stress concentration under the three conditions. The results provide references for design of clad steel tube sheet.
出处
《压力容器》
2015年第10期23-29,36,共8页
Pressure Vessel Technology
基金
国家自然科学基金资助项目(51376163
51476147)
河南省基础与前沿计划项目(142300410066)
关键词
钛
复合管板
应力分析
有限元分析
TA
clad steel tube sheet
stress analysis
finite element analysis
