Abstract
In order to evaluate the sealing performance of the pipe connectors, we developed a simplified 3D model by adjusting the cone angle of the nozzle and analyzing the contact pressure of the sealing structure, the width of the contact surface, and the equivalent stress as the response quantities. Based on a finite element analysis approach, we found that increasing the cone angle of the nozzle improves the sealing performance, but may negatively affect structural reliability and maintenance. As such, the optimal range for the nozzle cone angle is relatively reasonable between 55° and 60°. Furthermore, we use a sealed interface leakage model to calculate the joint leakage rate under theoretical conditions.
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