An integral FEA model and a nonlinear contact algorithm were emplyed for the double-cone seal structure, which were applied on the large-sized double-cone seal structure under internal pressure. The stress distribution of double-cone ring and gasket under pre-tightening and working conditions, as well as the influence of pre-tightening force and internal pressure on the gasket stress, double-cone ring strain and radial clearance, were obtained. If the radial clearance was designed according to g⩾0.1% D1, the material of double-cone ring would yield globally. Meanwhile, If the radial clearance was designed according to g⩽0.05%D1, the sealing performance in the pressurizing process would not be ensured. A radial clearance g=(0.075%∼0.1%)D1 is recommended.
Non-Linear Numerical Analysis of Large-Sized Double-Cone Sealing Process
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Sheng, S, Han, S, Zheng, J, Gao, Y, & Zhou, N. "Non-Linear Numerical Analysis of Large-Sized Double-Cone Sealing Process." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 1: Codes and Standards. Prague, Czech Republic. July 26–30, 2009. pp. 473-478. ASME. https://doi.org/10.1115/PVP2009-77843
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