关于汽车运输船刚性设计与柔性设计的强度比较分析

在汽车运输船的设计中,一般存在刚性设计和柔性设计这两种思路。刚性设计较传统,但近年来也有汽车运输船采用柔性设计的。文中以一艘5 000车的汽车运输船为例,分别进行了刚性设计和柔性设计的舱段有限元分析,以比较两种设计在结构强度方面的特点,并对柔性设计的支柱与甲板强框相交处的结构进行了细化和疲劳分析,为今后汽车运输船的设计提供有价值的参考。     

甲板箱的运输责任

为明确甲板箱运输责任问题．对甲板箱和传统法律框架下的甲板货进行比较，分析集装箱提单甲板货选择条款的内容和意义以及承运人对甲板箱负有的义务，认为应当根据承运船舶的实际情况判断甲板箱是否属于传统法律意义上的甲板货。在运输甲板箱的情况下，承运人仍然应当克尽职责使船舶适航，妥善管理货物，并遵从托运人的特殊要求，     

论甲板防火的两种途径交替及其延伸

SOLUS规范对在建船舶甲板的防火等级有严格的要求，在建造1300TEU集装箱船时，根据经验，提出了A60甲板敷料替代A60级陶瓷棉绝缘材料的防火敷设方法，并给出了敷设方案。     

直升机甲板的直接强度校核

直升机甲板是很多船型上重要的结构设施,文中根据意大利船级社规范的相关规定,对一艘海工船的直升机甲板进行结构强度方面的校核,为今后直升机甲板的相关规范审图和设计提供有价值的参考。     

码头面高程计算方法探讨

针对码头项面高程确定中遇到的实际问题,提出一种新的计算方法。新方法在吸收现行规范中有掩护式码头和开敞式码头顶面高程计算方法特点的基础上,对于各种掩护程度码头采用统一公式,可以避开因半开敞式码头界定的不明确性给码头顶面高程计算带来的麻烦,在考虑波浪荷载与水位组合方面概念更清晰,应用较方便。     

舰船甲板变形的理论研究

为了研究舰船甲板的变形,对其结构进行了简化,建立了舰船甲板受力的数学模型。分别在横向载荷、总纵弯矩及二者共同作用等3种情形下,对舰船甲板的变形特性进行了计算。计算结果表明,舰船甲板受力变形为mm级;在横向载荷作用下,舰首甲板变形最大;在总纵弯矩作用下,甲板的0.6~0.75间部位变形最大。     

码头面高程计算方法探讨

针对码头顶面高程确定中遇到的实际问题,提出一种新的计算方法.新方法在吸收现行规范中有掩护式码头和开敞式码头顶面高程计算方法特点的基础上,对于各种掩护程度码头采用统一公式,可以避开因半开敞式码头界定的不明确性给码头顶面高程计算带来的麻烦,在考虑波浪荷载与水位组合方面概念更清晰,应用较方便.     

Structural behaviour of a high tensile steel deck using trapezoidal stiffeners and dynamics of vehicle–deck interactions

As an early part of a large design and fabrication-oriented project FasdHTS funded by the GROWTH programme of the European Commission, an exotic concept ship was designed in very high tensile steel (EHS690) with the purpose of finding out consequences for design and production. The project has already produced a considerable bank of knowledge for design and shipyard production in this material.This paper presents analysis and discussions on static and dynamic behaviour of a high tensile steel deck designed with trapezoidal stiffeners. First, a finite element model of the deck structure is created. The influence of support condition for the longitudinal girders, and the contact area between the vehicle tyre and panel were analysed. The results from modal analysis of the structure under different load conditions are presented. The different load conditions comprise the unloaded and loaded deck, and the load type, i.e. cargo loads or vehicle loads (car loads or truck loads). From the frequency response analysis under harmonic excitation, it shows how the locations and numbers of cars parked on the deck influence the dynamic response of the structure. Furthermore, by studying the car–deck interaction, it is found that the effects of normal cargo loads are quite different from the vehicle loads due to the spring/damping effects of the vehicles. It is suggested that the carloads have a similar mechanism to that of tuned mass dampers. Finally, two transient analyses of the structure due to excitations transferred from deck supports and lorry braking-induced loading are performed. It is suggested that the deck structure and vehicle design could have more interactions with each other.     

甲板上集装箱绑扎方式及受力分析

本文简要介绍了甲板上集装箱的绑扎件及绑扎方式，对不同的绑扎方式做了具体的受力分析，对绑扎方式的选择提出了个人的看法。     

船舶干舷甲板上开口保护方式研究

根据国际船舶PSC、国内船舶FSC和各专项检查报告显示,船舶干舷甲板上开口保护方式存在重复性和低级性错误,导致船舶被滞留情况较多。该文梳理了国际和国内船舶规范要求,总结了船舶干舷甲板上开口保护方式,对常见缺陷进行了分析(包括国际航行船舶小舱口不满足URS26标准,以及内河船舶缆绳孔、电影院和电梯等特殊型式开口),并提出解决方案和建议。