The design of transfer trajectory for Ivar asteroid exploration mission
The design of transfer trajectory for Ivar asteroid exploration mission
复制标题
Ivar小行星探测任务转移轨迹设计
DOI：
10.1016/j.actaastro.2009.04.006
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发表时间：
2009-12
影响因子：
3.5
通讯作者：
乔栋
中科院分区：
文献类型：
--
作者：
乔栋
由于对彗星和小行星等小型天体的探测需求迫在眉睫，中国计划对近地小行星伊瓦尔进行深空探测。本文讨论了小行星伊瓦尔转移轨道的设计和优化方法。利用地球重力辅助深空机动(Delta-Vega)技术设计了与小行星依瓦尔交会的转移轨道。Delta-Vega转移轨迹由连接深空机动和逐点摆动的多个轨迹段实现。通过求解Lambert问题找到每个轨迹段。通过调整深度机动和到达时间，满足摆动的比赛条件。为了进一步减少任务总速度增量，针对小行星依瓦尔的转移轨道方案，开发了一种最小化总速度增量的程序。利用一阶解析导数用拟牛顿算法求解弹道优化问题，该导数是由与最优化公式和初始向量理论相关的横截性条件导出的。仿真结果表明，变轨方案使C3和总速度增量分别降低了48.80%和13.20%。
An impending demand for exploring the small bodies, such as the comets and the asteroids, envisioned the Chinese Deep Space exploration mission to the Near Earth asteroid Ivar. A design and optimal method of transfer trajectory for asteroid Ivar is discussed in this paper. The transfer trajectory for rendezvous with asteroid Ivar is designed by means of Earth gravity assist with deep space maneuver (Delta-VEGA) technology. A Delta-VEGA transfer trajectory is realized by several trajectory segments, which connect the deep space maneuver and swingby point. Each trajectory segment is found by solving Lambert problem. Through adjusting deep maneuver and arrival time, the match condition of swingby is satisfied. To reduce the total mission velocity increments further, a procedure is developed which minimizes total velocity increments for this scheme of transfer trajectory for asteroid Ivar. The trajectory optimization problem is solved with a quasi-Newton algorithm utilizing analytic first derivatives, which are derived from the transversality conditions associated with the optimization formulation and primer vector theory. The simulation results show the scheme for transfer trajectory causes C3 and total velocity increments decrease of 48.80% and 13.20%, respectively.
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影响因子：
2.6
作者：
M. Hechler
通讯作者：
M. Hechler
DOI：
--
发表时间：
2003
期刊：
--
影响因子：
--
作者：
Cui Ping-yuan;Liao Li-tao
通讯作者：
Cui Ping-yuan;Liao Li-tao
DOI：
--
发表时间：
1988
期刊：
--
影响因子：
--
作者：
C. G. Sauer
通讯作者：
C. G. Sauer
影响因子：
2.6
作者：
J. Sims;J. Longuski;Andrew J. Staugler
通讯作者：
J. Sims;J. Longuski;Andrew J. Staugler
影响因子：
6.8
作者：
J. Meditch
通讯作者：
J. Meditch