ABSTRACT

The aim of this study is to investigate the impact crashworthiness of a floating offshore nuclear power plant hull structure in an aircraft strike; the hull has a double-sided design that includes ballasting with either sand or concrete. As a hazardous event associated with a terrorist attack, one of the unfavourable impact scenarios is adopted in which a Boeing 777 airplane strikes the hull structure at a full speed. This study examines the contribution of ballasting materials such as sand or concrete to the penetration of the striking body into the hull structure in an aircraft strike as the power plant is gravity based sitting on the seabed. The LS-DYNA nonlinear finite-element method is employed for the structural crashworthiness analysis. Details of the computational modelling and resulting insights are documented.

摘要

这项研究的目的是调查飞机空袭中漂浮的海上核电站船体结构的耐撞性；船体采用双面设计，包括用沙子或混凝土压载。作为与恐怖袭击有关的危险事件，采用了一种不利的影响情形，其中波音777飞机以全速撞击船体结构。这项研究检查了压载材料（例如沙子或混凝土）在飞机撞击中由于动力装置位于海床上的重力作用而对打击体穿透到船体结构中的作用。LS-DYNA非线性有限元方法用于结构耐撞性分析。计算建模的详细信息和所产生的见解均已记录在案。