Environmental Design Space Model Assessment

Résumé du livre

The Environmental Design Space (EDS) is a multi-disciplinary design tool used to explore trade-offs among aircraft fuel burn, emissions, and noise. This thesis uses multiple metrics to assess an EDS model of a Boeing 777 aircraft. Starting from a detailed description of the EDS framework, a description of EDS model creation is outlined. The aircraft and engine model is assessed by a comparison to an industry-developed model and changes to the EDS model are explored to improve the model's predictive ability. The model is assessed by sensitivity studies on the inputs, component performance maps, and constraints. An alternate method of applying additional constraints to EDS results is also investigated. Finally, the model uncertainty is quantified using Monte Carlo simulations. This includes a study where all the inputs are varied and a study which investigates the implications of model uncertainty on trade study results. The comparison to the industry model shows that optimization around three design points is required to develop a model of acceptable accuracy.