Next-Generation Dynamic Wind-Tunnel Testing for Realizing Virtual Flight-Test Environment

本研究旨在发展新一代动态风洞试验技术，以混合模拟方法研究飞机在非线性飞行区域的动态稳定性。设计、制造了一种新型并联机器人操作器HEXA，并用于进行多自由度动态风洞试验。此外，还开发了先进的光学测量技术，如非稳态压敏涂料和荧光微型簇，以可视化在流动中移动的模型上的流动。作为使用这些技术的实验结果，振荡频率和振幅对机翼的动态稳定性的影响已经被澄清。

The purpose of this study is to develop a next-generation dynamic wind-tunnel testing technique based on hybrid-simulation approach for studying dynamic stability of aircraft in nonlinear flight region. A new parallel-link robotic manipulator called “HEXA" has been designed, built, and used for conducting multi-degree-of-freedom dynamic wind-tunnel testing. In addition, advanced optical measurement techniques such as unsteady Pressure-Sensitive Paint and Fluorescent Mini-tuft have been developed to visualize the flow on the model moving in the flow. As a result of the experiment using these techniques, the effects of oscillation frequency and amplitude on the dynamic stability of a wing have been clarified.