航天器工程
航天器工程
항천기공정
SPACECRAFT ENGINEERING
2012年
1期
77-82
,共6页
陈江平%黄家荣%范含林%丰茂龙
陳江平%黃傢榮%範含林%豐茂龍
진강평%황가영%범함림%봉무룡
载人航天器%流体回路%工质冻结%控制器%仿真分析
載人航天器%流體迴路%工質凍結%控製器%倣真分析
재인항천기%류체회로%공질동결%공제기%방진분석
manned spacecraft%fluid loop%work fluid freezed%controller%simulation and analysis
对载人航天器热控分系统单相流体回路进行了简化,建立了氨工质单相流体回路的软件仿真模型,对仿真模型添加瞬态外热流,施加比例、积分和微分（PID）控制器。仿真结果给出了单相流体回路在典型工况下控温点温度波动、辐射器出口温度波动、温控阀主旁路流量分配的响应情况。据此分析了单相流体回路在典型工况下的动态响应性能、控温性能及低温防冻性能。总结评价了氨工质单相流体回路的低温防冻能力,确定了影响单相流体回路控温性能的因素,可用于指导我国单相流体回路进行优化设计及防冻设计。
對載人航天器熱控分繫統單相流體迴路進行瞭簡化,建立瞭氨工質單相流體迴路的軟件倣真模型,對倣真模型添加瞬態外熱流,施加比例、積分和微分（PID）控製器。倣真結果給齣瞭單相流體迴路在典型工況下控溫點溫度波動、輻射器齣口溫度波動、溫控閥主徬路流量分配的響應情況。據此分析瞭單相流體迴路在典型工況下的動態響應性能、控溫性能及低溫防凍性能。總結評價瞭氨工質單相流體迴路的低溫防凍能力,確定瞭影響單相流體迴路控溫性能的因素,可用于指導我國單相流體迴路進行優化設計及防凍設計。
대재인항천기열공분계통단상류체회로진행료간화,건립료안공질단상류체회로적연건방진모형,대방진모형첨가순태외열류,시가비례、적분화미분（PID）공제기。방진결과급출료단상류체회로재전형공황하공온점온도파동、복사기출구온도파동、온공벌주방로류량분배적향응정황。거차분석료단상류체회로재전형공황하적동태향응성능、공온성능급저온방동성능。총결평개료안공질단상류체회로적저온방동능력,학정료영향단상류체회로공온성능적인소,가용우지도아국단상류체회로진행우화설계급방동설계。
This paper developes a simplified simulation model representing the single-phase ammonia fluid loop used for thermal control subsystem of manned spacecraft,adds transient orbit heat flux and PID controller to the simulation model.The performances of set point temperature fluctuation,radiator outlet temperature fluctuation and flow distribution are obtained.Then the results are used to analyze the fluid loop dynamic performance,temperature control performance and the performance of anti-freeze of single-phase ammonia fluid loop used for manned spacecraft in predefined cases.Finally,the paper summarizes and evaluates the performance of anti-freeze of single-phase ammonia fluid loop,and analyzes the factors that have impact on fluid loop temperature control performance,which can guide researchers and engineers to conduct system optimization and system anti-freeze design.
