| 弹射过程座舱盖抛放轨迹的预测 |
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| 引用本文： | 杨春信,韩海鹰,龚洁,杨新明,徐晓东.弹射过程座舱盖抛放轨迹的预测[J].空气动力学学报,2005,23(1):35-39. |
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| 作者姓名： | 杨春信 韩海鹰 龚洁 杨新明 徐晓东 |
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| 作者单位： | 北京航空航天大学505教研室,北京,100083;空军第一研究所,北京,100076 |
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| 摘 要： | 通过分析座舱盖在各个不同抛放阶段的受力关系,并着重考虑了抛放过程中气动系数的修正和铆钉剪切的影响,最终建立了座舱盖抛放轨迹的预测模型.该模型可广泛用于预测不同型号座舱盖在各种飞行状态下的抛放轨迹.算例表明计算结果与实验数据一致,证明了模型的实用性和有效性.
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| 关 键 词： | 座舱盖 气动力系数 抛放轨迹 数学模拟 |
| 文章编号： | 0258-1825(2005)01-0035-05 |
Prediction of the aircraft canopy trajectory |
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| YANG Chun-xin,HAN Hai-ying,GONG Jie,YANG Xin-ming,XU Xiao-dong.Prediction of the aircraft canopy trajectory[J].Acta Aerodynamica Sinica,2005,23(1):35-39. |
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| Authors: | YANG Chun-xin HAN Hai-ying GONG Jie YANG Xin-ming XU Xiao-dong |
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| Abstract: | For meeting the need of jettison system design, the prediction model of the canopy trajectory is developed through analyzing the force of canopy at different steps of jettison. The aerodynamic coefficients used in the model is acquired through the transient correction of steady aerodynamic coefficients. Furthermore, the influence of rivet trimming on trajectory has been considered to improve the accuracy of model. The model can be used in the trajectory prediction of different aircraft canopies at variable conditions. Finally, with this model, some simulations are carried out ,and the results demonstrated its feasibility. |
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| Keywords: | canopy aerodynamic coefficients trajectory numerical simulation |
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