预紧工况下双锥环的有限元分析及优化

Finite Element Analysis and Optimization of Duplex Conical Rings under Pre-tightening Condition

建立某加氢反应器双锥环结构的有限元模型,分析在预紧工况下,对双锥面施加一定的预紧分布压力后,双锥环结构的厚度与锥角对其径向压缩位移的影响。研究结果表明,该双锥环在预紧工况下能实现良好的密封,其径向压缩位移随厚度的增加而减小,随双锥环锥角的增大而增大。

A finite element model of duplex conical rings structure on a hydrogenation reactor was established. The influence of the thickness and conical angle of the duplex conical rings structure on its radial contraction was analyzed when a certain pre-tightening distribution pressure was applied to the duplex conical plane in the pre-tightening condition. The results showed that the duplex conical rings can achieve a good seal in the pretightening condition, and its radial shrinkage displacement decreased with the increase of thickness, and increased with the increase of the conical angle.