高空微型飞行器滑翔轨迹特性优化研究
V221+.6; 基于滑翔式微型飞行器(micro gliding air vehicle,MGAV)的布局、投射及飞行特点,分析并优化其在不同任务需求下的一般轨迹特性.首先,概述了此种MGAV的设计过程及总体参数;接着,基于一般意义的飞行器平面运动模型,推导出平衡滑翔初始投射条件,并结合实际投射装置参数推导真实初始投射条件.进一步分别比较了在这两种投射条件下的无约束最远射程轨迹特性,真实滑翔比平衡滑翔在射程上减少约5 km.然后,分析了此种飞行器可能存在的任务需求,采用高斯伪谱法得到在过程约束及终端约束下最长滑翔时间及保证滑翔时间及滑翔距离同时最长2种目标函数下的最优滑翔轨迹.第一种目标下,...
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| Published in | 西北工业大学学报 Vol. 37; no. 5; pp. 983 - 991 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院 光电研究院,北京,100190
01.10.2019
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-2758 |
| DOI | 10.1051/jnwpu/20193750983 |
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| Abstract | V221+.6; 基于滑翔式微型飞行器(micro gliding air vehicle,MGAV)的布局、投射及飞行特点,分析并优化其在不同任务需求下的一般轨迹特性.首先,概述了此种MGAV的设计过程及总体参数;接着,基于一般意义的飞行器平面运动模型,推导出平衡滑翔初始投射条件,并结合实际投射装置参数推导真实初始投射条件.进一步分别比较了在这两种投射条件下的无约束最远射程轨迹特性,真实滑翔比平衡滑翔在射程上减少约5 km.然后,分析了此种飞行器可能存在的任务需求,采用高斯伪谱法得到在过程约束及终端约束下最长滑翔时间及保证滑翔时间及滑翔距离同时最长2种目标函数下的最优滑翔轨迹.第一种目标下,优化后航时和无控滑翔相比可提高约8 min,但是和理论最远射程136 km相比缩短20 km.第二种目标下,在最远射程维持不变的同时可使航时提高约2 min.最后,将优化轨迹的控制变量带入到动力学方程积分进行可行性验证.研究结果表明,基于高斯伪谱法的轨迹分析是一种高效可行的轨迹优化策略. |
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| AbstractList | V221+.6; 基于滑翔式微型飞行器(micro gliding air vehicle,MGAV)的布局、投射及飞行特点,分析并优化其在不同任务需求下的一般轨迹特性.首先,概述了此种MGAV的设计过程及总体参数;接着,基于一般意义的飞行器平面运动模型,推导出平衡滑翔初始投射条件,并结合实际投射装置参数推导真实初始投射条件.进一步分别比较了在这两种投射条件下的无约束最远射程轨迹特性,真实滑翔比平衡滑翔在射程上减少约5 km.然后,分析了此种飞行器可能存在的任务需求,采用高斯伪谱法得到在过程约束及终端约束下最长滑翔时间及保证滑翔时间及滑翔距离同时最长2种目标函数下的最优滑翔轨迹.第一种目标下,优化后航时和无控滑翔相比可提高约8 min,但是和理论最远射程136 km相比缩短20 km.第二种目标下,在最远射程维持不变的同时可使航时提高约2 min.最后,将优化轨迹的控制变量带入到动力学方程积分进行可行性验证.研究结果表明,基于高斯伪谱法的轨迹分析是一种高效可行的轨迹优化策略. |
| Author | 杨燕初 闫峰 屈正宇 |
| AuthorAffiliation | 中国科学院 光电研究院,北京,100190 |
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| Author_FL | YAN Feng QU Zhengyu YANG Yanchu |
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| DocumentTitle_FL | Optimization Study of High Altitude Micro Gliding Air Vehicle Re-Entry Path Characteristics |
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| Keywords | 平板翼型 低雷诺数 轨迹特性 高斯伪谱法 滑翔式微型飞行器 |
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| Title | 高空微型飞行器滑翔轨迹特性优化研究 |
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