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论文:2014,Vol:32,Issue(4):557-562 |
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引用本文: |
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崔建峰, 张科, 吕梅柏. 面向控制的弹性高超声速飞行器建模方法研究[J]. 西北工业大学 |
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Cui Jianfeng, Zhang Ke, L�Meibo. A Control-Oriented Modeling for Flexible Air-Breathing Hypersonic Vehicle[J]. Northwestern polytechnical university |
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面向控制的弹性高超声速飞行器建模方法研究 |
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崔建峰1,2, 张科1,2, 吕梅柏1,2 |
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1. 西北工业大学 航天学院, 陕西 西安 710072; 2. 航天飞行动力学国家级重点实验室, 陕西 西安 710072 |
摘要: |
高超声速飞行器广泛采用升力体、乘波体等气动布局和轻质材料,导致飞行器刚体模态与弹性模态的耦合问题突出。针对该类飞行器的特点,使用有限元方法基于变截面自由梁构建高超声速飞行器的结构弹性模型,利用当地流活塞理论计算弹性变形引起的非定常气动力,然后借助均匀设计、逐步回归等统计学方法获取弹性高超声速飞行器的高精度曲线拟合模型。仿真对比分析表明,所介绍的高超声速飞行器弹性建模方法高效、可靠,其所建立的曲线拟合模型与原始物理模型的一致程度及精度均优于现有拟合模型,而所消耗的时间与计算机资源小于现有建模方法。 |
关键词:
弹性高超声速飞行器
均匀设计
曲线拟合模型
动态特性分析
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A Control-Oriented Modeling for Flexible Air-Breathing Hypersonic Vehicle |
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Cui Jianfeng1,2, Zhang Ke1,2, L�Meibo1,2 |
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1. School of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China; 2. National Key Laboratory of Aerospace Flight Dynamics, Xi'an 710072, China |
Abstract: |
The wide use of lifting body and wave-rider aerodynamic layout causes difficulty in the coupling between the rigid modal of a flexible air-breathing hypersonic vehicle and its elastic modal. Hence we use the finite element method and the variable cross-section free beam to establish the control-oriented structural elastic model of the hy-personic vehicle. We apply the first-order local flow piston theory to calculate its unsteady aerodynamic force. Then we use the uniform design method and the step-by-step regression analysis method to establish its high-precision curve fitting model (CFM). The simulation results, given in Figs.3 and 4, and their comparison show preliminarily that:the CFM established with the control-oriented elastic modeling method agrees well with the physical model of the hypersonic vehicle, while consuming less computing time and resources than other traditional modeling methods. |
Key words:
computational efficiency
flow fields
hypersonic vehicles
aerodynamics
control
curve fitting
lift
mathematical models
regression analysis
unsteady flow
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收稿日期: 2013-11-16
修回日期:
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DOI: |
基金项目: 航空科学基金(20110153003);西北工业大学基础研究基金(GCKY1006)资助 |
通讯作者:
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作者简介: 崔建峰(1980-),西北工业大学博士研究生,主要从事飞行器制导、控制与仿真研究。
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作者相关文章 |
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崔建峰 在本刊中的所有文章 |
张科 在本刊中的所有文章 |
吕梅柏 在本刊中的所有文章 |
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参考文献: |
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[1] 杨超, 许赟, 谢长川. 高超声速飞行器气动弹性力学研究综述[J]. 航空学报, 2010, 31 (1): 1-11 Yang Chao, Xu Yun, Xie Changchuan. Review of Studies on Aero-Elasticity of Hypersonic Vehicles[J]. ACTA Aeronautica et Astronautica Sinica, 2010, 31 (1): 1-11 (in Chinese) [2] Bolender M A, Doman D B. A Non-Linear Model for the Longitudinal Dynamics of a Hypersonic Air-Breathing Vehicle[C] ∥ San Francisco, CA, United States: Collection of Technical Papers-AIAA Guidance, Navigation, and Control Conference, 2005:3937-3958 [3] Bolender M A, Doman D B. Flight Path Angle Dynamics of Air-Breathing Hypersonic Vehicles[C] ∥ AIAA Guidance, Navigation, and Control Conference and Exhibit, Keystone, Colorado, 2006 [4] 孟中杰, 陈凯, 黄攀峰, 等. 高超声速飞行器机体 /发动机耦合建模与控制[J]. 宇航学报. 2008, 29(5): 1509-1514 Meng Zhongjie, Chen Kai, Huang Panfeng, et al. The Coupling Model and Control between Scramjet and Airframe for Hypersonic Vehicle [J]. Journal of Astronautics. 2008, 29(5): 1509-1514 (in Chinese) [5] 张冉, 李惠峰, 肖进. 高超声速飞行器刚体 /弹性体耦合动力学建模[J]. 北京航空航天大学学报, 2012(02): 160-165 Zhang Ran, Li Huifeng, Xiao Jin. Hypersonic Vehicle Rigid /Elastic Coupled Dynamic Modeling [J]. Journal of Beijing University of Aeronautics and Astronautics, 2012(02): 160-165 (in Chinese) [6] 苏二龙, 罗 建军, 黄兴李, 等. 考虑气动加热和变截面惯性矩的高超声速飞行器建模与分析[J]. 宇航学报, 2012, 33 (6): 690-697 Su Erlong, Luo Jianjun, Huang Xingli, et al. Modeling and Analysis of Hypersonic Vehicle Considering Variable Cross-Section Moment of Inertia and Aerodynamics Heating [J]. Journal of Astronautics, 2012, 33(6): 690-697 (in Chinese) [7] Parker J T, Serrani A, Yurkovich S, et al. Control-Oriented Modeling of an Air-Breathing Hypersonic Vehicle[J]. Journal of Guidance, Control, and Dynamics, 2007, 30(3): 856-869 [8] Fiorentini L. Nonlinear Adaptive Controller Design for Air-Breathing Hypersonic Vehicles [D]. Ohio: The Ohio State University, 2010: 122-159 [9] 诸德超, 程伟, 邢誉峰, 等. 工程振动基础[M]. 北京: 北京航空航天大学出版社, 2004 Zhu D C, Cheng W, Xing Yufeng, et al. Foundation of Engineering Vibration[M]. Beijing: Beihang University Press. 2004:122-159 (in Chinese) [10] 张伟伟, 史爱明, 王刚, 等. 结合定常 CFD 技术的当地流活塞理论[J]. 西北工业大学学报, 2004, 22(5): 545-549 Zhang Weiwei, Shi Aiming, Wang Gang, et al. On Determining Unsteady Aerodynamic Loads Accurately and Efficiently[J]. Journal of Northwestern Polytechnical University, 2004, 22(5): 545-549 (in Chinese) [11] 方开泰, 刘民千, 周永道. 试验设计与建模[M]. 北京: 高等教育出版社, 2011: 148-201 Fang K T, Liu M Q, Zhou Y D. Design and Modeling of Experiments[M]. Beijing: Higher Education Press, 2011: 148-201 (in Chinese) |
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