Rapid Approaches to Assess Power-Plant Loading for Novel Aircraft Concepts Under Extreme Events

我的研究课题的工作标题是“极端事件下评估发电厂负荷的新概念的快速方法”。目前，飞机发动机需要经过昂贵而严格的认证过程，测试是在物理发动机上进行的。分析极端事件对发动机的影响将导致发动机在测试期间损坏。希望能找到一种“通过分析来证明”的方法，这样就不再需要昂贵和浪费的发动机销毁了。极端事件可能包括风扇叶片关闭、鸟儿进食、旋翼盘故障、飞轮着陆或紧急动作。来自最严重极端事件的负载通常用于调整关键组件的大小。飞机的主要新兴新概念包括混合机翼机身和安装在机身顶部表面的动力装置，支撑机翼和安装在机翼下方的动力装置，以及将动力装置放置在机身后部的边界层吸入概念。新颖的发动机设计可能包括超高旁路比涡轮风扇、开式转子设计或反向旋转风扇，同时也注意到通向电气化的举措。我目前的研究目标是开发结构建模策略，以评估在早期设计阶段经历极端事件的新兴飞机概念，特别关注动力装置和机身之间的相互作用。然后，该工具可以帮助在概念阶段为未来的设计决策提供信息，以避免稍后在开发过程中进行成本高昂的重新设计。主要目标将是进行彻底的文献审查，调查目前的飞机认证要求、新出现的概念、建模方法和动力装置/机身结构。找出当前知识和学术文献中的差距。确定最重要的极端事件和当前的认证要求。研究和提出适用于早期设计阶段的建模策略，可用于评估经历极端事件的新飞机概念。这项研究由EPSRC资助，并与他们的工程设计研究领域保持一致，该领域专注于复杂工程系统的生成、建模、优化、模拟和推理的理论、方法和工具。它也是由部分资金资助，并与劳斯莱斯公司合作进行的。在贝尔法斯特女王大学德克兰·诺兰博士和达米安·奎因博士的监督下。

The working title of my topic of research is "Rapid Approaches to Assess Power-Plant Loading for Novel Concepts Under Extreme Events". Currently, aircraft engines go through an expensive and rigorous certification process with the tests being conducted on a physical engine. Analyzing the effects of extreme events on the engine will result in the destruction of the engine during testing. The hope is to work towards a method of "certification by analysis" whereby the expensive and wasteful destruction of the engines would no longer be required. Extreme events may include a Fan Blade Off, Bird Ingestion, Rotor Disk Failure, Wheels-Up Landing or Emergency Maneuvers. The load from the most severe extreme event is often what will be used to size critical components. The main emerging novel concepts for aircraft include the Blended Wing Body with the power-plants mounted on the top surface of the fuselage, the strut-braced wing with the power-plant mounted under the wing, and the boundary layer ingestion concept where the power-plant is placed at the rear of the fuselage. Novel engine designs might include Ultra-high Bypass Ratio turbofans, Open-Rotor designs or Counter-Rotating Fans with attention also given to the moves made towards electrification. The current aim of my research is to develop structural modelling strategies to assess emerging aircraft concepts undergoing extreme events at early design stages, with particular focus on powerplant and airframe interactions. This tool could then help inform future design decisions at concept stages to avoid costly re-design later in the development process. The main objectives would be to conduct a thorough literature review investigating current aircraft certification requirements, emerging concepts, modelling methods and power-plant/airframe structure. Identify gaps in the current knowledge and academic literature. Identifying the most significant extreme events and current certification requirements. Investigating and proposing modelling strategies suitable for early design stages, which can be used to assess novel aircraft concepts undergoing extreme events. The research is funded by the EPSRC and is aligned with their Engineering Design research area, which is focused on theories, methods, and tools for generating, modelling, optimizing, simulating, and reasoning about complex engineered systems. It is also part-funded and conducted in collaboration with Rolls Royce plc. under the supervision of Dr Declan Nolan and Dr Damian Quinn at Queen's University Belfast.