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| Dynamic Response Analysis of Aircraft Maneuverbased on Aeroelastic Model |
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| DOI：10.7643/issn.1672-9242.2022.09.015 |
| KeyWord:aeroelastic elastic model gust load analysis model, MSC.NASTRAN, control surface deflection dynamic response |
| Author | Institution |
| LIU Ping |
Shanghai Aircraft Design and Research Institute, Shanghai , China |
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| Abstract: |
| In order to study the dynamic load and aeroelastic response when the aircraft is maneuvering, dynamic aeroelastic analysis is done based on the gust load analysis model which considered the modal frequency correction and aero model correction in this paper. The analysis is done withMSC.NASTRAN. The elevator deflection signal in the flight test is used to do the dynamic aeroelastic analysis. With dynamic aeroelastic analysis, it can be found that the analyzed acceleration data can have a good match with the acceleration data getting from flight test. It shows that the model used in this paper can characterize the aerodynamic and structural dynamic characteristics of the real aircraft. At the same time, it can be noticed that the elastic vibration response is obvious in both analysis data and flight test data. For elastic aircraft, the elasticity of the body will cause additional vibration response. For specific stations of the aircraft, this vibration may not be ignored, which needs to be analyzed in detail. Further research can be done to analyze whether theelastic vibration response will have adverse effects. |
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