方法对比
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| 重量与平衡× | Theodorsen 颤振× | |
|---|---|---|
| 领域 | 航空航天 | 航空航天 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1940s | 1935 |
| 提出者≠ | Aviation engineering | Theodore Theodorsen |
| 类型≠ | Analysis method | Stability analysis |
| 开创性文献≠ | Federal Aviation Administration (2017). Airplane Weight and Balance Control. Advisory Circular AC 23-8B-1C. link ↗ | Theodorsen, T. (1935). General theory of aerodynamic instability and the mechanism of flutter. NACA Report No. 496. link ↗ |
| 别名 | W&B, center of gravity, CG analysis | flutter analysis, aeroelastic stability, Theodorsen's function |
| 相关 | 3 | 3 |
| 摘要≠ | Weight and balance analysis is the process of determining the total weight of an aircraft and the location of its center of gravity (CG) throughout its operational envelope. Essential for aircraft safety and performance, weight and balance ensures that the CG remains within allowable limits (forward and aft) to maintain stable flight and controllability. Regulatory certification requires comprehensive weight and balance documentation for every aircraft configuration. | Theodorsen flutter analysis is a classical aeroelastic method for predicting the onset of flutter, a self-excited oscillation where aerodynamic forces interact with elastic structural motion to cause rapid growth of oscillations. Developed by Theodore Theodorsen in 1935, the method uses frequency-domain analysis with Theodorsen's function to compute aerodynamic forces on oscillating wings. Flutter speed prediction is essential for aircraft certification and structural design. |
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