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论文:2014,Vol:32,Issue(6):877-881 |
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陈经纬, 陈康, 尙妮妮, 闫杰. 基于气动力/推力矢量控制的飞行器性能分析[J]. 西北工业大学学报 |
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Chen Jingwei, Chen Kang, Shang Nini, Yan Jie. Performance Analysis of Hypersonic Vehicles Based on Aerodynamic /Thrust Vector Control[J]. Northwestern polytechnical university |
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| 基于气动力/推力矢量控制的飞行器性能分析 |
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| 陈经纬, 陈康, 尙妮妮, 闫杰 |
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| 西北工业大学 航天学院, 陕西 西安 710072 |
| 摘要: |
| 采用推力矢量技术的飞行器通过喷管偏转和发动机产生的推力来获取额外的控制力矩从而实现对飞行器的姿态控制。其突出特点是控制力矩与发动机紧密相关,而不受飞行器本身姿态的影响。对于高超声速飞行器,推力矢量提供的等效舵偏角可以部分替代气动舵偏角,这对飞行器的减阻和防热都十分有利。主要研究高超声速飞行器气动力与推力矢量组合控制的问题。通过建立高超声速飞行器的动力学/运动学模型,设计了基于气动力和推力矢量的组合控制器,使所需的舵偏角由气动力和推力矢量一起提供,通过理论分析和六自由度仿真,对组合控制的效果进行仿真验证。仿真表明当所需舵偏角较小时,推力矢量装置产生的等效舵偏角可以完全提供,气动舵几乎不用偏转;当所需舵偏角较大时,推力矢量装置和气动舵一起提供。结果表明这种组合控制具有较好的工程实际应用价值。 |
| 关键词:
高超声速飞行器数学模型
气动力/推力矢量组合控制
等效气动力
临近空间
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| Performance Analysis of Hypersonic Vehicles Based on Aerodynamic /Thrust Vector Control |
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| Chen Jingwei, Chen Kang, Shang Nini, Yan Jie |
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| College of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The aircraft using thrust vector control uses the engine to produce thrust through the nozzle deflection toget extra control moment to realize the attitude control of the flight vehicle. Its outstanding characteristic is that it isclosely related to the engine torque control,and is not under the influence of the vehicle attitude itself.The equiva-lent rudder yaw-angle provided by thrust vector can substitute for some aerodynamic rudder yaw-angle; this is ad-vantageous for reducing resistance and heat shielding of vehicles.The primary job of this paper concerns hypersonicvehicles based on aerodynamic/thrust vector control in near space. By establishing the dynamics and kinematicsmodel and designing aerodynamic/thrust vector controller,the required rudder yaw-angle can be provided by aero-dynamic and thrust vector. A six DoF mathematical model is built and simulated in matlab and simulink. When therequired rudder yaw-angle is small,it can all be provided by thrust vector; nevertheless,when the required rudderyaw-angle is big,it should be provided by aerodynamic and thrust vector. The resalts and their analysis show pre-liminarily that the control methods are correct , and all the methods are useful for engineering application. |
| Key words:
aerodynamic heating
aerodynamics
aircraft
angular velocity
attitude control
computer simulation
controllers
cutoff frequency
degrees of freedom(mechanics)
design
dynamics
hypersonic vehi-cles
kinematics
maneurerability
mathematical models
MATLAB
aerodynamic/thrust vector multi-controller
equivalent aerodynamic
near space
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| 收稿日期: 2014-05-12
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金(91216104)资助 |
| 通讯作者:
Email： |
| 作者简介: 陈经纬(1990-)，西北工业大学硕士研究生，主要从事导航制导与控制研究。
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| 作者相关文章 |
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| 陈经纬 在本刊中的所有文章 |
| 陈康 在本刊中的所有文章 |
| 尙妮妮 在本刊中的所有文章 |
| 闫杰 在本刊中的所有文章 |
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参考文献: |
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