基于平流层特殊风场的浮空器定点方案研究 -- 西北工业大学,2014,32(1):12-17
论文:2014,Vol:32,Issue(1):12-17
引用本文:
常晓飞, 白云飞, 符文星, 闫杰. 基于平流层特殊风场的浮空器定点方案研究[J]. 西北工业大学
Chang Xiaofei, Bai Yunfei, Fu Wenxing, Yan Jie. Research on Fixed-Point Aerostat Based on Its Special Stratosphere Wind Field[J]. Northwestern polytechnical university

基于平流层特殊风场的浮空器定点方案研究
常晓飞, 白云飞, 符文星, 闫杰
西北工业大学 航天学院, 陕西 西安 710072
摘要:
平流层飞艇为了实现定点控制需要较大的能源消耗。借鉴平流层卫星的轨迹控制思想,基于平流层底部"准零风层"这一特殊风场特性,提出一种新型的平流层浮空器定点部署方案。通过对运行环境风场的统计分析,给出系统总体结构和工作原理:通过控制轨迹控制器姿态调整浮空气球高度,利用准零风层上下区域纬向风反向的特点实现东西方向控制;利用轨迹控制器产生经向控制力,通过系绳拖动气球实现南北方向控制。建立了浮空气球和轨迹控制器的动力学模型,提出了"质量集中-轻质刚杆"的系绳建模方法,完成了控制系统总体方案设计,并进行了仿真验证。仿真结果表明:利用平流层底部特殊风场特性的定点浮空气球,能够实现特定区域上空的定点驻留和机动飞行。
关键词:    平流层    准零风层    定点浮空器    轨迹控制器    多体系统建模   
Research on Fixed-Point Aerostat Based on Its Special Stratosphere Wind Field
Chang Xiaofei, Bai Yunfei, Fu Wenxing, Yan Jie
College of Astronautics, Northwestern Polytechnical University, Xi'an 710072, China
Abstract:
In order to achieve the position control,the stratospheric airship requires a large amount of energy consumption. Starting from the trajectory control idea of stratospheric satellites of U.S. Global Aerospace Company,We propose a new fixed-point deployment scheme for stratospheric aerostat based on the special wind field characteristics of bottom stratospheric quasi-zero wind layer. Through the statistical analysis of the operating wind field environment,the overall system structure and working principles are given: tuning the trajectory controller to realize the attitude adjustment of floating balloon,using the reverse characteristics of the up/ down zone of quasi-zero wind layer to achieve east-west direction control; utilizing trajectory controller to generate the control force,dragging the balloon via tether to achieve north-south direction control. Dynamics model of the floating balloon and trajectory controller is built,and the tether is modeled by means of"lumped mass-lightweight rigid rod". In addition,the overall scheme of the control system is designed for further verification. Simulation results indicate that: the floating balloon,implemented through utilizing the special wind field characteristics of the bottom stratosphere,has the capability of fixed-point residence and maneuver flight within certain area.
Key words:    balloons    quasi-zero wind layer    fixed-point aerostat    upper atmosphere    Modeling of multi-body system   
收稿日期: 2013-04-21     修回日期:
DOI:
基金项目: 航天支撑基金;CAST创新基金(2010XR020001)资助
通讯作者:     Email:
作者简介: 常晓飞(1983-),西北工业大学讲师、博士,主要从事飞行器控制与仿真的研究。
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