Integrated environment for simultaneous analysis of aeroacoustics, aerodynamics and aeroelasticity

用于同时分析气动声学、空气动力学和气动弹性的集成环境

• 批准号: 459286139
• 金额: --
• 依托单位: Rheinisch-Westfälische Technische Hochschule Aachen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/459286139?language=en
• 关键词: Integrated; environment; simultaneous; analysis; aeroacoustics

Low noise operation, energy efficient operation and safe & secure flight operation are fundamental prerequisites for the envisoned airborne electro mobility options. This applies to full electric aircraft in urban environments (e.g. drones and air taxis) as well as hybrid-electric aircraft for regional ranges. So far, there are no fundamental answers to the urgent questions regarding social acceptance, safety and security, and environmental compatibility. In order to close this gap, the Institute of Aerospace Systems (ILR) at the RWTH Aachen University in cooperation with the Institute of Structural Mechanics and Lightweight Structures (SLA) is building up the Aachen Low Noise Wind Tunnel. The existing measurement equipment allows a fundamental analysis of acoustics, structural deformation and flow with respect to slow phenomena. In fact, however, the noise-related phenomena and critical flight conditions are associated with highly unsteady processes. Accordingly, in order to achieve up a fundamental understanding and to derive solutions, it is necessary to be able to analyze all relevant parameters with high temporal and spatial resolution. This shall be made possible with the applied integrated measurement environment Aero3, which couples components for the dynamic positioning of the model with methods for noise localization and determination of noise emission and comprehensive resolution and documentation of flow fields as well as structural response. The integrated measurement environment Aero3 aims at a coupled simultaneous analysis of aeroacoustics, aerodynamics and aero elasticity of (hybrid-)electric air vehicles in specific flight scenarios. This coupled simultaneous analysis of all three disciplines enables a fundamental understanding of physical phenomena and in consequence the development of promising technical solutions. The overall goals are a substantial increase in safety of light air vehicles in atmospheric disturbances, e.g. turbulence and gusts, the reduction of public annoyance, specifically caused by noise emissions and the increase of efficiency by reduction of drag. Usually up to now the design of light air vehicles is based on knowledge gained by trial and error. Thus, a large development and optimization potential exists for an energy efficient, publicly acceptable future operation of small air vehicles. Aero3 can contribute to tap such potential.

低噪音运行、节能运行和安全可靠的飞行运行是设想的机载电动交通选项的基本先决条件。这适用于城市环境中的全电动飞机（例如无人机和空中出租车）以及用于区域范围的混合电动飞机。到目前为止，对于社会接受、安全和保障以及环境兼容性等紧迫问题，还没有根本的答案。为了缩小这一差距，亚琛工业大学航空航天系统研究所（ILR）与结构力学和轻型结构研究所（SLA）合作，正在建造亚琛低噪声风洞。现有的测量设备允许声学，结构变形和流动相对于缓慢的现象进行基本分析。然而，实际上，与噪声有关的现象和临界飞行条件与高度不稳定的过程有关。因此，为了实现基本的理解并得出解决方案，有必要能够以高的时间和空间分辨率分析所有相关参数。应用集成测量环境Aero3可以实现这一点，该环境将模型动态定位组件与噪声定位和噪声发射确定方法以及流场和结构响应的综合分辨率和文件编制方法相结合。集成测量环境Aero3旨在对特定飞行场景中的（混合）电动飞行器的气动声学、空气动力学和气动弹性进行耦合同步分析。这三个学科的耦合同时分析使物理现象的基本理解，并因此有前途的技术解决方案的发展。总体目标是大幅度提高轻型飞行器在大气扰动（例如湍流和阵风）中的安全性，减少特别是由噪声排放引起的公众烦恼，以及通过减少阻力来提高效率。 到目前为止，轻型飞行器的设计通常是基于通过试验和错误获得的知识。因此，一个大的发展和优化的潜力存在的能源效率，公众可接受的小型飞行器的未来操作。Aero3可以为挖掘这种潜力做出贡献。