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| Loading Technology about Main Rotor Hub of Unmanned Helicopter in Fatigue Test |
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| DOI：10.7643/issn.1672-9242.2022.11.012 |
| KeyWord:rotor configuration unmanned helicopter main rotor hub fatigue test loading technology debug method centrifugal force loading mode test loading accuracy |
| Author | Institution |
| BAO Ming |
China Helicopter Research and Development Institute, Jiangxi Jingdezhen , China |
| LI Da-hai |
China Helicopter Research and Development Institute, Jiangxi Jingdezhen , China |
| LIU Hong-yan |
China Helicopter Research and Development Institute, Jiangxi Jingdezhen , China |
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| Abstract: |
| Firstly, based on the structural style and the bearding characteristics of the main rotor hub about two different rotor configurations from unmanned helicopter, some new methods of loading and debugging technology about main rotor hub fatigue test for unmanned helicopter are introduced. Then, by analyzing the two different centrifugal force loading mode, some effects about test load (including phase difference, displacement, and precision), test frequency, and test running status can be gotten through the result. Finally, some solutions for aforementioned analytical results are put forward, which can not only solve the problem of lower loading accuracy, guarantee the test running smoothly and loading reasonably in the fatigue test, accurately assess its fatigue life span, but also provide great valuable reference for the development of similar main rotor hub ground fatigue test technology about unmanned helicopter. |
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