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一种新型RLV再入轨迹在线规划方法
  • ISSN号：1000-1328
  • 期刊名称：宇航学报
  • 时间：2011.8.8
  • 页码：1670-1675
  • 分类：V448.235[航空宇航科学与技术—飞行器设计;航空宇航科学技术]
  • 作者机构：[1]北京航空航天大学飞行器控制一体化技术重点实验室,北京100191
  • 相关基金：国家自然科学基金重大研究计划资助项目（90916003）
  • 相关项目：近空间高超声速飞行器自主协调控制研究
作者： 沈振|胡钰|任章|宋剑爽|
关键词： 可重复使用运载器, 再入, 标准轨迹, 在线规划, 割线法, RLV, Reentry, Reference trajectory, On-line design, Secant method
中文摘要：

针对可重复使用运载器（Reusable Launch Vehicle,RLV）再入轨迹在线规划问题,提出了一种基于割线法的标准轨迹快速生成方法。该方法以驻点热流、法向过载、动压和平衡滑翔限制为再入过程约束,以再入初始点和结束点的高度、速度为再入端点约束;在阻力加速度-速度平面内建立约束模型后,设计了折线形式的标准轨迹;采用割线法迭代计算轨迹转折点以调整轨迹形状,使最终规划轨迹对应的航程和终端点速度同时满足设计需求。最后取3种不同航程的再入情况进行了数值仿真。仿真结果表明,所提出的方法能够在1秒内完成再入轨迹规划,并在一定航程范围内适用,能够满足在线设计标准再入轨迹的实时要求。

英文摘要：

A novel on-line planning method is proposed based on the secant method for RLV reentry trajectory design.Constraints during reentry are analyzed,and the stagnation point heat flow,the normal load,the dynamic pressure and the equilibrium glide constraint are selected as the main path constraints,also the heights and the velocities of the initial and terminal points are specified,all of which are expressed in D-V forms.The reference trajectory is then designed as a two-segment piecewise fold line.The secant method is utilized to adjust the turning point of the trajectory rapidly until the gliding distance and the velocity of the terminal point meet the desired values simultaneously.Finally,simulations are conducted for 3 cases with different the gliding distances.Simulation results demonstrate that the proposed method could not only design the on-line reference trajectory in less than 1 second,but also be applicable to a certain range of the gliding distance.

同期刊论文项目
近空间高超声速飞行器自主协调控制研究
期刊论文 84 会议论文 8
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期刊信息
  • 《宇航学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国宇航学会
  • 主编：杜善义
  • 地址：北京市海淀区阜成路8号主楼306
  • 邮编：100048
  • 邮箱：yhxb@vip.163.com
  • 电话：010-68768614 68767316
  • 国际标准刊号：ISSN：1000-1328
  • 国内统一刊号：ISSN：11-2053/V
  • 邮发代号:2-167
  • 获奖情况:
  • 2006、2011年百种中国杰出学术期刊,2007年中国科协精品科技期刊工程,2006-2008年中国科技期刊优秀学术论文奖,2011年《中国精品科技期刊》称号
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:17670