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

该项目将研究新的计算方法，用于模拟和评估极端事件对当前和未来发电厂和飞机设计概念的影响。在设计航空航天系统时，经常花费大量精力针对极端事件(例如叶片丢失或包络边缘情况)来评估设计，这往往会导致概念发生重大变化，在某些情况下使其无法实现。评估这些事件往往极具挑战性，需要大量的背景信息，并使用不适合早期设计时间表的复杂分析技术。因此，在概念设计阶段，通常依赖于与这些事件相关的经验数据或“诀窍”。然而，对于新的飞机概念来说，这样的经验数据和知识是非常缺乏的，这些概念往往与传统的管和翼结构有很大的不同，在气动效率方面已经接近其建筑设计极限。严格的环境要求和可持续性要求，意味着新飞机需要在性能上比以前的飞机有一个阶段性的改变。该项目希望首先发展对极端事件对常规配置的影响的理解，特别是对于发电厂设计。为此，将使用彻底的文献回顾以及基于模拟的敏感性研究。一旦发现得到验证，将对其进行研究，并利用它们为开发新的模拟方法提供信息，这些方法适用于在概念设计阶段评估极端事件对新飞机配置的影响。重点将放在对发电厂和邻近结构部件的影响上。开发这样的新方法对于在所需的时间框架和预算内实现苛刻的业绩目标至关重要。目的和目标：目的是了解极端飞机事件对当前和未来发动机和飞机设计概念的影响。这将通过以下目标来实现：-了解飞机和发电厂极端事件设计要求，以及满足这些要求所使用的方法。-确定这些事件对现有设计的影响。-研究和开发适用于概念设计阶段的未来设计的评估方法。-使用新开发的方法评估领先设计选项的性能。

This project will investigate novel computational methods for modelling and assessing the impact of extreme events on current and future power-plant and aircraft design concepts. When designing aerospace systems, a significant amount of effort is often expended in assessing designs against extreme events (such as blade loss or edge of envelope scenarios), often resulting in significant changes to concepts or in some cases rendering them unrealisable. These events are often extremely challenging to assess, requiring a large amount of background information and the use of complex analysis techniques which are unsuited to early design timescales. As a result, empirical data or "know-how" is often relied upon with respect to these events during conceptual design stages. However, such empirical data and knowledge is greatly lacking for novel aircraft concepts, which often vary significantly from the conventional Tube and Wing configuration, already optimised close to its architectural design limit regarding aerodynamic efficiency. Stringent environmental requirements and sustainability demands, means new aircraft need a step change in performance over their predecessors. This project looks to firstly develop understanding of the implications of extreme events on conventional configurations, particularly with respect to Power-Plant design. To this end, a thorough literature review along with simulation-based sensitivity studies will be utilised. Once findings are validated, they will be studied and utilised to inform development of novel simulation methods suitable for evaluating the effects of extreme events on novel aircraft configurations at conceptual design stages. Emphasis will be placed on the implications for the Power-Plant and neighbouring structural components. The development of new methods such as these, are essential in achieving demanding performance objectives in required timeframes and budgets. Aims and Objectives: The aim is to understand the influence of extreme aircraft events on the design of current and future engine and aircraft design concepts. This will be met through the following objectives: - Understand aircraft and power-plant extreme event design requirements, and the methodologies used to meet them. - Determine the influence of these events on existing designs. - Investigate and develop methods for evaluation of future designs suitable for concept design stages. - Use newly developed methods to evaluate performance of leading design options.