Multidisciplinary design optimization of novel and flexible aircraft configurations: design, build, test and fly [MIDAS]

航空运输政策和运营商以及飞机制造商要求更安全和更环保的空气 运输系统，以及降低开发和运营成本，后者在20%和50%， 短期和长期，这导致了飞机设计范式转变的需要。本 最后，采用新颖的构型，更轻的复合材料，以增加有效载荷，节能推进 系统和变形控制面以减少阻力的研究已经受到了相当大的关注 在过去的五年里，社区。一个有趣的中期解决方案是将机翼展弦比增加到 减少空气动力诱导阻力，从而减少燃料消耗和污染物排放。然而，在这方面， 通过设计更细长的机翼，机翼结构变得更加灵活，并且易于产生更大的偏转 在相同的操作条件下。这种效应可能导致气动伺服弹性性能的变化， 可能导致动态不稳定性。因此，考虑几何非线性的重要性， 大展弦比机翼的设计。从长远来看，新的布局，如机翼-机身融合， 连接翼构型提出了替代当前传统设计的有希望的解决方案。在这 项目，提出了一个双管齐下的方法来研究先进飞机设计的一些方面：（i）新的 多学科设计优化方法，分析和实验评估和验证新的 用于商用喷气机跨音速范围内运行的翼身融合构型，以及（ii） 区域运输机用柔性和非线性大展弦比机翼的气动伺服弹性性能鉴定 飞机

Air transport policies and operators, and aircraft manufacturers are demanding safer and greener air transportation systems as well as reduced development and operating costs, the latter by 20% and 50% in the short and long term, respectively, which has resulted in a need for a paradigm shift in aircraft design. To this end, the adoption of novel configurations, lighter composites to increase payload, energy efficient propulsion systems, and morphing control surfaces to reduce drag have received considerable attention in the research community for the past five years. An interesting mid-term solution is the increase of wing aspect-ratio to reduce the aerodynamic induced drag and thus decrease fuel consumption and pollutant emissions. However, by designing more slender wings, the wing structure becomes more flexible and prone to higher deflections under the same operation conditions. This effect may lead to changes in aeroservoelastic performance, which may lead to dynamic instabilities. Hence the importance of taking into account geometric nonlinearities in the design of high aspect-ratio wings. Over the long term, novel configurations such as the blended-wing-body and joined-wing configurations present promising solutions to replace the current conventional designs. In this project, a two-pronged approach is proposed to study a number of facets in advanced aircraft design: (i) new multidisciplinary design optimization methodologies to analyze and experimentally evaluate and validate novel blended-wing-body configurations for operation in the transonic range for business jets, and (ii) the aeroservoelastic performance evaluation of flexible and nonlinear high aspect-ratio wings for regional transport aircraft.