采用聚乳酸(PLA)/碳纤维复合梯度材料对FPSO舷侧立管的防护结构进行优化设计，从防护结构、立管结构和舷侧结构的损伤变形、碰撞力和吸能特性等方面验证其防护效果。研究表明：4种不同PLA/碳纤维分布方式的防护结构较低碳钢防护结构的防撞能力有较大提升；PLA/碳纤维质量分数的分布方式不同，其结构强度、应力传播和吸能特性均不尽相同，其中X型PLA/碳纤维的防护结构防撞性能相对最好，具有一定的工程应用价值。
In this paper, polylactic acid (PLA)/carbon fiber composite gradient material is used to optimize the design of the protection structure of the FPSO outboard riser, and its protection effect is verified in terms of damage deformation, collision force and energy absorption characteristics of the protection structure, riser structure and outboard structure. The study shows that: four different PLA/carbon fiber distribution methods have improved the collision protection capability compared with mild steel protection structure; the structural strength, stress propagation and energy absorption characteristics are different with different PLA/carbon fiber mass fraction distribution methods, among which the X-type PLA/carbon fiber protection structure has the best collision protection performance and has certain engineering application value.
2023,45(20): 116-120 收稿日期：2022-7-28
DOI：10.3404/j.issn.1672-7649.2023.20.022
分类号：U663.2
作者简介：尹群(1964-),男,博士,教授,研究方向为船舶与海洋工程结构力学
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