IACS船舶系泊与拖带新要求解析

国际船级社协会新规范已生效,对于系泊与拖带设计提出了新的要求。本文对规范新要求进行解读,通过对比新旧要求,将计算方法和设计要求的具体变化进行了总结分析,并结合集装箱船和散货船的设计实例,提出了后续设计计算过程中需要特别注意的问题,为后续实船设计提供参照。     

IACS双壳油船共同结构规范的前期研究

首先阐述了双壳油船共同结构规范(以下简称“JTP”)建立的背景,技术发展的特点和路径,以及实施进程。其次,全面介绍了JTP的特点和基本内容,并与中国船级社油船规范的相关内容作了对比说明。而后通过实船计算分析说明JTP对将来新造油船结构的影响。结论指出了共同规范对中国造船业的影响,提出了我国造船界为了加强竞争力需要努力进行的工作。     

船舶机械计划保养系统与PMS检验

船舶机械计划保养体系作为一种新型的机务管理模式,正在我国得到推广。介绍了船舶机械计划保养系统的类型及主要功能,阐明了船舶的机械保养体系与PMS检验的关系,以及船舶申请实施PMS检验的重要意义。     

Application of plastic framing requirements for polar ships

A new International Association of Classification Societies (ICAS) standard for Polar Ship design, in the form of a Unified Requirement is being developed by an international committee with representatives from many classification societies and with the active participation of many polar nations. The framing structural requirements have been developed by a combination of analysis of existing rules and ships, finite element analysis and analytical solutions of plastic collapse mechanisms. This paper describes the use of the rule formulae in designs. The formulae contain interactions between shear and bending and give the designer options and flexibility in satisfying the strength requirements. Effective design requires knowledge of the effects, and the possible approaches to reach a satisfactory design.     

Derivation of plastic framing requirements for polar ships

A new International Association of Classification Societies standard for polar ship design, in the form of a unified requirement is being developed by an international committee with representatives from many classification societies and with the active participation of many polar nations. The framing structural requirements have been developed by a combination of analysis of existing rules and ships, finite element (FE) analysis and analytical solutions of plastic collapse mechanisms. This paper describes the derivation of the 3-hinge and asymmetrical shear plastic collapse mechanisms using work–energy principles. Energy methods are robust and well suited for developing design standards. The results are shown to compare well with non-linear FE analyses of frame strength.     

IACS新系泊规范对客滚船系泊配置的影响

分析了国际船级社协会(IACS)对系泊配置的最新要求以及这些新要求对客滚船的主要影响,在原系泊配置的基础上总结了新规范对其产生的影响及需要修改的内容.文章可为后续船的设计提供依据,为船厂掌握修改的工作量提供参考。     

关于IACS-UR S21的探讨

本文主要介绍IACS-UR S21的发展及其最新规定,详细介绍了舱口围板的设计要求。     

对IACSUISC246关于操舵试验推算公式的应用探讨

介绍了IACS Rev.1 of UI SC246(SC246)对操舵试验以及结果推算的要求。结合某散货船两次操舵试验的数据对比,探讨影响操舵试验结果的因素以及SC246推算公式的局限性。