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| Design and Implementation of Helicopter Flutter Flight Excitation System |
| Received:July 01, 2020 Revised:July 13, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.09.029 |
| KeyWord:helicopter coupling flutter excitation security control |
| Author | Institution |
| LI Yu-li |
Chinese Flight Test Establishment, Xiʹan , China |
| KOU Bao-zhi |
Chinese Flight Test Establishment, Xiʹan , China |
| LIANG Hai-zhou |
Chinese Flight Test Establishment, Xiʹan , China |
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| Abstract: |
| The work aims to design a helicopter flutter flight excitation system based on the architecture of PowerPC and the domestic embedded real-time operating system ACoreOS for the first time to meet the requirements of fly-by wire helicopter flight test subjects about structural dynamic stabilities and flying quality. In view of the complex transmission relationship of helicopters, multi-channel coupled excitation output technology and various security monitoring measures were applied to realize the high-precision and reliability excitation output. The effectiveness of design and the applicability of the equipment were verified by the simulation tests and the practical engineering applications. The helicopter excitation system provides strong support and guarantee for effectively reducing the flight test risk and test cycle and improving the flight test efficiency. |
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