摘要
离子推进器是一种动力装置,可为航天器提供动力。其性能为推力、比冲和效率,通常是在保证推力和比冲的条件下,用效率来评价其性能。通过分析离子推进器工作参数与推力、比冲和效率的关系,提出一种采用离子推进器工作参数,利用公式计算来快速、便捷的评价其性能的方法。对20 cm氙离子推进器的性能评价结果表明:用工作参数,通过公式计算的结果与直接测量法的结果相一致。
Ion thruster is one of the propulsion. And it can provide propulsion for spacecraft. Thrust, specific impulse and efficiency are mainly performances of the ion thruster. In general, its performances are evaluated by the efficiency under the guaranteed its thrust and specific impulse. In this paper, by analysis the relations between the thrust, specific impulse, effi ciency and the operation parameter of ion thruster, showed an evaluation method of the performance by operation parameter of ion thruster. And the performance was evaluated for 20 cm xenon ion thruster. The result was agreement both measurement and computation.
出处
《真空与低温》
2012年第4期223-227,共5页
Vacuum and Cryogenics
关键词
电推进
离子推进器
性能
评价
方法
electric propulsion
ion thruster
performance evaluation
method
