Direct calculation of buckling and fatigue strength of large Ro-Ro ship section

• Main Authors: HE Lisi, WANG Deyu
• Format: Article
• Language: English
• Published: Editorial Office of Chinese Journal of Ship Research 2018-08-01
• Series: Zhongguo Jianchuan Yanjiu
• Subjects: Ro-Ro passenger ship; buckling strength; advanced buckling analysis; fatigue strength; FEA
• Online Access: http://www.ship-research.com/EN/Y2018/V13/I4/33

<b>[Objectives]</b> A Roll-on/Roll-off(Ro-Ro)ship is a modern ship type with high technology and high added value. Due to the specification of its structure,a consensus on buckling and fatigue checking for Ro-Ro ships has not been reached among the different classification societies of the world. <b>[Methods]</b> On the basis of analyzing the structural characteristics of Ro-Ro ships,the present study considers the direct calculation of buckling strength,advanced buckling analysis and fatigue analysis of a selected section of a large Ro-Ro ship. The calculations are conducted on the basis of self-developed software from the SJTU KSHIP Project. The pretreatment of buckling and fatigue assessment are established in accordance with the DNV standard "Strength Analysis of Hull Structure of Roll-on/Roll-off Ships and Car Carriers",and the related CCS rules. <b>[Results]</b> The calculated buckling strength, advanced buckling strength and fatigue strength of the target cabin meet the requirements of the related rules.<b>[Conclusions]</b> The contents of this paper have a certain reference value for the related structural analysis of Ro-Ro ships.