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论文:2020,Vol:38,Issue(6):1266-1274 |
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引用本文： |
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陈金鹤, 汪正中, 田洪源. 基于最优控制理论的倾转旋翼机跃障飞行仿真[J]. 西北工业大学学报 |
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CHEN Jinhe, WANG Zhengzhong, TIAN Hongyuan. Hurdle-Hop Simulation of Tilt-Rotor Aircraft Based on Optimal Control Theory[J]. Northwestern polytechnical university |
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| 基于最优控制理论的倾转旋翼机跃障飞行仿真 |
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| 陈金鹤, 汪正中, 田洪源 |
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| 中国直升机设计研究所 直升机旋翼动力学重点实验室, 江西 景德镇 333001 |
| 摘要: |
| 针对倾转旋翼机近地面跃障飞行仿真分析需求，提出了2种基于最优控制理论的倾转旋翼机跃障机动数值仿真分析模型。首先，基于倾转旋翼机纵向飞行动力学模型进行地面效应影响修正；其次，模型一结合逆仿真的预定轨迹方法，建立跃障飞行最优化轨迹逆解模型，模型二针对跃障机动进行详细解析，制定合理跃障飞行的目标、路径约束和边界约束条件，构建出倾转旋翼机跃障飞行无预定轨迹的最优控制模型；并采用直接多重打靶法和非线性规划算法进行求解；最后，以XV-15为研究对象，针对2种最优控制模型进行跃障飞行仿真分析，给出了2种模型的最优化飞行和操纵的时间历程。 |
| 关键词:
跃障机动
倾转旋翼机
最优控制
非线性规划
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| Hurdle-Hop Simulation of Tilt-Rotor Aircraft Based on Optimal Control Theory |
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| CHEN Jinhe, WANG Zhengzhong, TIAN Hongyuan |
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| Science and Technology on Rotorcraft Aeromechanics Laboratory, China Helicopter Research and Development Institute, Jingdezhen 333001, China |
| Abstract: |
| Aiming at simulating the hurdle-hop of tilt-rotor aircraft in forward flight near the ground, two models of numerical simulation and analysis based on optimal control theory were proposed. Firstly, Longitudinal flight dynamic model for tilt-rotor was modified considering the influence of ground effect. Secondly, the first model is combined with predicted trajectory from inverse simulation method, the inverse model of hurdle-hop of tilt-rotor is established based on optimal trajectory, and the second model is the optimal control model of unpredicted trajectory, which is formulated from the reasonable function of objective, path and boundary constraints for hurdle-hop with detailed analysis, solved two models by direct multiple shooting method and nonlinear programming algorithm. Finally, XV-15 as the sample vehicle. Two models for hurdle-hop based on optimal control theory was calculated, the history of optimal flight trajectory and control are given. |
| Key words:
hurdle-hop
tilt-rotor
optimal control
nonlinear programming
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| 收稿日期: 2020-02-19
修回日期:
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| DOI: 10.1051/jnwpu/20203861266 |
| 通讯作者:
Email： |
| 作者简介: 陈金鹤(1989-),中国直升机设计研究所工程师,主要从事直升机飞行动力学研究。
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