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China Ocean Engineering

, Volume 33, Issue 4, pp 503–508 | Cite as

Buckling of Cassini Oval Pressure Hulls Subjected to External Pressure

  • Wen-xian Tang
  • Wei-min WangEmail author
  • Jian ZhangEmail author
  • Shu-yan Wang
Technical Notes
  • 17 Downloads

Abstract

The paper focuses on Cassini oval pressure hulls under uniform external pressure. The Cassini oval pressure hull is proposed based on the shape index of Cassini oval. The buckling of a series of Cassini oval pressure hulls with the shape index of 0.09–0.30 and one spherical pressure hull with the diameter of 2 m is devoted. Such hulls are numerically studied in the case of constant volume, material properties, and wall thickness. The results show that Cassini oval pressure hulls with the shape index of 0.10–0.11 can resist about 4% more external pressure than the spherical one. This deviates from the classical mechanics conclusion that spherical shell is the optimal shape for underwater pressure resistant structures.

Key words

pressure hull Cassini oval shell shape index buckling behaviour external pressure 

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Copyright information

© Chinese Ocean Engineering Society and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical EquipmentJiangsu University of Science and TechnologyZhenjiangChina
  2. 2.School of Mechanical EngineeringJiangsu University of Science and TechnologyZhenjiangChina

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