ABSTRACT In the European research project ‘Surfacing System for Ship Recovery’ (SuSy), gas inflated balloons are envisaged to be used for providing reserve buoyancy to damaged ships for the purpose of preventing ship capsizing and/or sinking, along with lifting wreckages from the seabed. This paper presents the proof of concept tests of the prototype salvage units applied on a full-scale demonstrator section of a double bottom structure, together with measurements of its structural response. Two scenarios of internal and external deployment of the inflatable rescue units were examined. In both cases, the demonstrator was successfully salvaged. Data from the structural response of the demonstrator revealed certain operational aspects of the salvage system which directly affected the response of the salvaged structure. The monitored structural response of the demonstrator during operation of the salvage system was well within the elastic regime of its material (Grade A steel). Accordingly, finite element simulation of the salvage system supporting structure was conducted. The results of these simulations were found to be well correlated to the corresponding experimental measurements.

中文翻译：

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一种创新的船舶打捞概念及其对船体结构响应的影响

摘要 在欧洲研究项目“用于船舶修复的表面系统”（SuSy）中，充气气球被设想用于为受损船舶提供备用浮力，以防止船舶倾覆和/或沉没，同时将残骸从船上吊起。海底。本文介绍了应用于双层底结构全尺寸演示器部分的原型打捞单元的概念测试验证，以及其结构响应的测量。检查了充气救援装置内部和外部部署的两种情况。在这两种情况下，示威者都被成功救出。来自演示器结构响应的数据揭示了打捞系统的某些操作方面，这直接影响了打捞结构的响应。在打捞系统运行期间，监测到的演示器的结构响应完全在其材料（A 级钢）的弹性范围内。因此，进行了打捞系统支撑结构的有限元模拟。发现这些模拟的结果与相应的实验测量非常相关。