Investigation and analysis of Novel Aircraft Designs and the effects introduced on the modelling and characterisation of Fatigue Load Spectra

本摘要简要介绍了将在博士项目“新型飞机设计的调查和分析以及对疲劳载荷谱建模和表征的影响”上进行的研究。“在贝尔法斯特的女王大学。这项研究由EPSRC iCASE奖资助，将与劳斯莱斯公司合作进行。本研究的目的是了解和验证载荷谱，研究载荷谱生成过程的参数化和定制，以适应不同的飞机构型和尺寸。研究将深入分析载荷谱作为输出的灵敏度，该灵敏度基于飞机特性的变化，如尺寸、重量、飞行包线、任务和外部参数，如阵风，和/或其它信息。本研究的预期成果之一是开发高效、准确的数值模型，这将有助于定制飞机配置的载荷谱特征化，以便用于疲劳分析。这将有助于在设计阶段更好地估计飞机的寿命，从而对航空产品的寿命周期成本产生直接影响。主要目标包括：对开发疲劳谱的方法进行审查。 确定尺寸、重量、飞行包线、任务剖面和外部参数（如阵风）如何影响频谱，以了解驾驶参数。为定制飞机构型的载荷谱特性开发高效准确的数值模型。建立一个框架来计算这些频谱对飞机的影响，以进一步了解频谱对飞机疲劳相关行为的影响。

This summary gives a brief description of the research that will be undertaken on the PhD project titled, "Investigation and analysis of Novel Aircraft Designs and the effects introduced on the modelling and characterisation of Fatigue Load Spectra." at Queen's University of Belfast. This research is funded through an EPSRC iCASE award and will be conducted in collaboration with Rolls-Royce plc. The aim of the proposed research is to understand and characterise load spectra and to investigate the parameterization and customization of the load spectra generation process for various aircraft configurations and sizing.Research will delve into the analysis of the sensitivity of the Loads Spectra as an output based on changes in Aircraft characteristics such as dimensions, weight, flight envelop, missions and external parameters such as gusts, and so forth. One of the foreseen outputs of this research is the development of efficient and accurate numerical models which will facilitate the characterisation of Load Spectra for customised aircraft configuration in order to be used for Fatigue Analysis. This will facilitate an improved estimation of the lifespan of the aircraft during the design phase and hence have a direct influence on the life-cycle cost of aviation products.The key objectives include: Performing a review of methodologies for developing fatigue Spectra. Determining how the spectra are influenced by dimensions, weight, flight envelop, missions profile and external parameters such as gust to understand the driving parameters. Developing efficient and accurate numerical models for the characterisation of Load Spectra for customised aircraft configuration. Creating a framework to calculate the impact of these spectra on an aircraft to further understand the influence of the spectra on aircraft fatigue related behaviour.