基于Ansys的舰用大尺寸异形密封圈双向密封性能数值研究

Numerical study on two-way sealing performance of a ship large size special-shaped sealing ring based on Ansys

基于Ansys软件对大尺寸异形密封圈的双向密封性能进行数值计算和研究。介绍了利用有限元仿真软件进行密封圈密封性能数值计算和基于计算结果进行密封性能评估的方法,为解决大尺寸密封结构存在较大配合误差使得双向完全密封难度较大的问题,设计了异形密封圈,并分别计算和分析异形密封圈在安装压缩作用、上部密封压力作用和下部密封压力作用等3种典型工况下不同压缩量的双向密封性能。仿真结果表明:设计的异形密封圈在密封结构存在较大配合误差时能够实现良好的双向密封,验证了密封结构设计的合理性。本文研究可为其他舰用大尺寸密封结构的设计和数值计算提供参考和指导。

In this paper, the two-way sealing performance of large size special-shaped sealing ring is numerically calculated and studied based on Ansys software. The numerical calculation of sealing performance of sealing ring by the finite element simulation software and the method of evaluating the sealing performance based on the calculation results is introduced. In order to effectively deal with large size seal structure with large coordination error, which makes the two-way complete seal difficult to achieve, a special-shaped sealing ring is designed, and the two-way sealing performance of the different compression is calculated and analyzed under three typical working conditions, such as installation compression, upper sealing pressure and lower sealing pressure. The simulation results show that under it can achieve good two-way sealing performance with the sealing structure having large coordination error, which verifies the rationality of the design of the sealing structure. The study of the paper can provide reference and guidance for the design and numerical calculation of the other ship large size sealing structure.