[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 高超声速飞行器周期跳跃巡航轨迹设计与仿真- Design and Simulation of Periodic Jumping Cruise Trajectory of Hypersonic Vehicle
文章摘要
叶泽浩,毕红葵,段敏,曲智国,李凡,董宇辉.高超声速飞行器周期跳跃巡航轨迹设计与仿真[J].空军工程大学学报:自然科学版,2019,20(1):67-72
高超声速飞行器周期跳跃巡航轨迹设计与仿真
Design and Simulation of Periodic Jumping Cruise Trajectory of Hypersonic Vehicle
  
DOI:
中文关键词: 有动力高超声速飞行器  周期跳跃巡航  轨迹设计  多约束
英文关键词: powered hypersonic vehicle  periodic jumping cruise  trajectory design  multiple constraints
基金项目:国家自然科学基金(61401504)
作者单位
叶泽浩,毕红葵,段敏,曲智国,李凡,董宇辉 空军预警学院,武汉,430019 
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中文摘要:
      针对临近空间有动力高超声速飞行器(NSPHV)周期跳跃巡航轨迹的设计规划问题,提出了一种基于飞行动力模型与多约束条件下的轨迹简单规划方法。首先,建立NSPHV动力学模型;其次,根据NSPHV周期性跳跃巡航飞行特点设计了以高度为节点约束、攻角为控制量的制导飞行方案,把攻角设成关于高度的简单分段周期函数,段与段之间以一定的攻角变化率连接,并利用直接法对攻角进行求解。最后仿真得到速度、航迹倾角、高度均具有一定周期性的NSPHV跳跃巡航飞行轨迹,同时分析了初始高度、初始速度以及初始航迹倾角对飞行轨迹的影响。结果表明:该方法是一种简单有效的周期巡航轨迹规划方法,而且生成的轨迹具有一定的稳定性,不易受初值影响。
英文摘要:
      To solve the problem of design and planning of the periodic jumping cruise trajectory for a near space powered hypersonic vehicle(NSPHV), a trajectory simple planning method based on the flight dynamics model and multiple constraints is proposed. Firstly, a dynamic model of NSPHV is established. Secondly, According to the periodic jumping cruise flight characteristics of NSPHV, a guidance flight scheme with altitude as the node constraint and the angle of attack as the control variable is designed. The angle of attack is set as a simple segmented periodic function with respect to the height, and the connection between segment and segment uses a certain angle of attack change rate. We calculate the attack angle by using the direct method. Finally, the simulation gets the result that the jumping cruise trajectory of the NSPHV has a certain periodicity in terms of velocity, flight path angle and altitude. And, the influence of the initial height, the initial velocity and the initial flight path angle are also analyzed. The results show that this is a simple and effective periodic cruise trajectory planning method. Moreover the generated trajectory has a certain degree of stability and is not easily affected by the initial values.
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