| 低层风切变对大型运输机自动着陆的影响 |
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| 引用本文： | 柏兆贵.低层风切变对大型运输机自动着陆的影响[J].航空学报,1992,13(2):65-69. |
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| 作者姓名： | 柏兆贵 |
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| 作者单位： | 上海飞机研究所 上海232-003信箱71分箱 200322 |
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| 摘 要： | 本文用线性控制系统的最佳理论求解飞机在着陆拉平过程中的最佳控制规律(包括升降舵操纵杆和油门杆角位移控制),使飞机安全着陆且纵向偏离和下沉率偏离最小。计算中考虑了水平向对数型风切变和下降气流的影响;并可以分别采用纵向空速u_(as)、高度h,下沉率h和姿态角θ等不同的跟踪方法减小风切变对飞行的影响。本文用此法对某飞机在着陆拉平过程中的特性进行进行了计算。
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| 关 键 词： | |
| 收稿时间： | 1991-09-20 |
| 修稿时间： | 1991-07-02 |
THE EFFECTS OF LOW-LEVEL WINDSHEAR ON AUTOMATIC LANDING OF LARGE TRANSPORT |
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| Bai Zhao-gui.THE EFFECTS OF LOW-LEVEL WINDSHEAR ON AUTOMATIC LANDING OF LARGE TRANSPORT[J].Acta Aeronautica et Astronautica Sinica,1992,13(2):65-69. |
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| Authors: | Bai Zhao-gui |
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| Institution: | Shanghai Aircraft Research Institute, Box 232-003-71, Shanghai, 200232 |
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| Abstract: | The linear optimal control theory is used for the optimal control law(elevator control, column angular displacement and throttle angular displacement) during landing that will enable an aircraft to get a safe landing and achieve the smallest possible longitudinal dispersion and sink rate deviation. Logarithmic windshear and downdraft were considered; airspeed profile, altitude, sink rate and attitude angle were tracked to improve the effects of windshear on flight. One aircraft has been simulated on IBM 4341. |
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| Keywords: | Windshear Automatic landing Optimal control law |
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