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首页> 外文会议>55th International Astronautical Congress 2004 vol.10 >IVAR ASTEROID EXPLORATION MISSION AND TRAJECTORY DESIGN
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IVAR ASTEROID EXPLORATION MISSION AND TRAJECTORY DESIGN

机译：IVAR天体探测任务和弹道设计

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As the successful launches of various spacecraft, the exploration of comet and asteroids has become an important part of deep space exploration efforts in the new century. In this paper, a plan of Chinese to explore asteroid ivar using "Expedition 1" spacecraft is presented. With the constraints given, such as launch date, post-launch ΔV , total ΔV and so on, the asteroid exploration opportunities satisfying all the conditions and having launch dates in 2006 to 2010 are searched and calculated. Ivar 1627 is selected as the target asteroid. Based on the main drivers of simplicity and low cost, the micro-spacecraft system for this project is designed and the overall arrangement and characteristics of the spacecraft are described, the subsystems including propulsion subsystem, attitude and trajectory control subsystem, electrical power subsystem and command telemetry subsystem are designed and analyzed in detail, and the micro deep space spacecraft designed may demonstrate and validate much relative technology. Finally the transfer trajectory is designed for rendezvous with asteroid Ivar 1627 using Δ VEGA technology, Δ VEGA technology includes one deep-space maneuver and one gravity-assist (with assist of gravitation of the earth), and the time interval between launch and encounter with earth again is 2 years. By the analysis of the trajectory performance, we can summarize that although the flight time of Δ VEGA trajectory transfer is near 2 years longer than that of direct transfer, it can reduce ΔV for escaping from the earth from 5.355km/s to 4.371km./s. The result acquired shows that the trajectory scenario design satisfies energy requirements for small explorers.
机译：随着各种航天器的成功发射，彗星和小行星的探索已成为新世纪深空探索工作的重要组成部分。本文提出了中国人使用“远征1号”飞船探索小行星伊瓦的计划。在给出发射日期，发射后ΔV，总ΔV等给定条件的条件下，搜索并计算了满足所有条件且发射日期为2006年至2010年的小行星勘探机会。 Ivar 1627被选为目标小行星。基于简单和低成本的主要驱动因素，设计了该项目的微型航天器系统，并描述了航天器的总体布置和特性，包括推进子系统，姿态和轨迹控制子系统，电力子系统和命令子系统。遥测子系统的设计和详细分析，所设计的微型深空航天器可以演示和验证许多相关技术。最终，转移轨迹被设计为使用ΔVEGA技术与小行星Ivar 1627会合，ΔVEGA技术包括一种深空机动和一种重力辅助（借助地球重力），以及发射和遭遇之间的时间间隔地球又是2年。通过对轨道性能的分析，我们可以得出结论，尽管ΔVEGA轨道转移的飞行时间比直接转移的飞行时间长了将近2年，但它可以使从地球逃逸的ΔV从5.355 km / s减小到4.371 km。 / s。获得的结果表明，轨迹方案设计可以满足小型勘探者的能源需求。

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