Marine Vessel Lightweighting (MariLight)

海洋运输业每年排放9.4亿吨二氧化碳（占全球温室气体排放量的2.5%）。国际海事组织（IMO）致力于减少国际航运的排放，并正在努力逐步淘汰它们。其最初的战略将技术创新视为实现整体目标不可或缺的一部分，同时引入规则，要求以节能设计方式设计和建造船舶，以[能源效率设计指数]b[0] （EEDI）来衡量。在英国，减少排放以实现更环保的海上运输解决方案是相当重要的，其既定目标是到2050年实现所有部门的脱碳，实现“净零”。这将通过设计和操作的许多方面的进步来实现，但出发点将是**减少船舶重量和动力需求**，**提高船舶的潜在效率**，从而使新的推进技术产生最大的影响。从实际的角度来看，解决现有设计和制造流程中阻碍行业发展的低效率问题至关重要，充分利用工业4.0的发展来提高流程自动化、提高质量、减少人工活动和改善工作条件。MariLight项目将实现这一目标，为海洋工业提供从需要劳动密集型工作的传统手工制造转向自动化和灵活制造路线的初步步骤，并有可能通过拓扑优化设计和大规模增材制造（LSAM）提供复杂的设计。**预期效益包括：***船舶重量减轻13%，** ***全球船队节省770万吨钢材，** ***90%的制造交货时间缩短，** ***60%的生产燃料/能源节省，** ***20%的生产时间缩短。这项可行性研究将展示一种变革性的设计和制造工艺路线，可将当前造船制造对环境的影响减少60%，在标准的30年使用寿命内提供10%的减排。**由**马林集团**领导，MariLight将产生一个强大的商业案例，详细介绍轻量化、二氧化碳减排和成本效益等特点，不仅为海洋行业，也为其他行业提供信息。这将通过引入拓扑优化设计和监管框架来实现，以利用LSAM技术生产更轻的造船部件。由Altair工程公司、BAE系统公司、劳氏船级社和苏格兰国家制造研究所（NMIS）组成的联合体拥有广泛的专业知识，该项目将实现可用于不同市场（如汽车、石油和天然气）的可靠结果，为英国提供更具竞争力和多样化的机会，同时在高技能领域创造就业机会。[0]: https://www.imo.org/en/OurWork/Environment/Pages/Technical-and-Operational-Measures.aspx

The marine transport industry contributes towards 940m tonnes of CO2 emission annually(2.5% of the global greenhouse emissions). The International Maritime Organisation (IMO) is committed to reducing emissions from international shipping and is working to phase them out. Its initial strategy identifies technological innovation as integral to achieving the overall ambition, whilst introducing rules requiring ships to be designed and built in an energy-efficient fashion, measured by the [Energy Efficiency Design Index][0] (EEDI).In the UK there is considerable emphasis on reducing emissions to reach greener maritime transport solutions, with the stated target of decarbonising all sectors to achieve 'net zero' by 2050\. This will be accomplished by progress in many aspects of design and operation, but the starting point will be **minimising ship weight and power demand**, **improving underlying vessel efficiency** so that new propulsion technologies will have the most significant impact.From a practical perspective, it is critical to address inefficiencies in existing design and manufacturing processes that prevent industry growth, making best use of Industry 4.0 developments to increase process automation, improve quality, reduce manual activity, and enhance working conditions.The MariLight project will achieve this, providing the marine industry with initial steps to move from conventional, manual fabrication that requires labour-intensive work, to an automated and flexible manufacturing route, with potential to deliver complex designs through **topology optimisation design and Large-scale Additive Manufacturing (LSAM).**Expected benefits include:\***13% vessel weight saving,**\***global fleet savings of 7.7m tonnes of steel,**\***90% manufacturing lead time reduction,**\***60% production fuel/energy savings,**\***20% reduction in production time.**This feasibility study will demonstrate a transformative design and manufacturing process route that reduces current shipbuilding manufacturing environmental impact by **60%, providing \>10% emission savings throughout a standard 30-year service life.**Led by **Malin Group**, MariLight will generate a robust Business Case, detailing features such as lightweighting, CO2 reduction, and cost benefits to inform not only the marine industry, but also other industry sectors. This will be achieved by introducing topology-optimised design and regulatory frameworks to produce **lighter shipbuilding components** utilising LSAM techniques.The extensive expertise from the consortium also composed of **Altair Engineering, BAE Systems, Lloyd's Register, and the National Manufacturing Institute Scotland (NMIS)**, the project will permit achieving reliable outcomes that can be exploited by different markets (e.g., automotive, Oil & Gas), providing the UK with opportunities to be more competitive and diversified, whilst creating jobs in highly skilled areas.[0]: https://www.imo.org/en/OurWork/Environment/Pages/Technical-and-Operational-Measures.aspx