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| Geometric Correction Method for Shell’s Stability of Ring-Stiffened Concave Cone-ToroidCylinder Combined Shel |
| ZHANG Er1,WU Fan1,MAO Kairen1,WU Chunfang2
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| (1. Naval Architecture Engineering, Naval University of Engineering, Wuhan 430033, China;
2. Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China) |
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Abstract Abstract： The ringstiffened concave conetoroidcylinder combined shell is a new joint structure. The shape of geometric imperfection and location of the joint was analyzed and the typical imperfection which had the greatest impact was calculated by using finite element simulation to study the method of correcting shell’s stability. Besides, the effect of structural parameters on geometric correction coefficient Cg was analyzed by conducting singlefactor numerical experiment. It is found that the Cg of cone which is next to the toroid has a different relationship with structural parameters compared with that of common cone. The method to calculate Cg is proved to be very precise, which justifies that it can be used in engineering calculation.
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Received: 18 May 2015
Published: 28 March 2016
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