载人航天
載人航天
재인항천
MANNED SPACEFLIGHT
2014年
3期
228-232
,共5页
付杨%范宇峰%于新刚%曹剑峰
付楊%範宇峰%于新剛%曹劍峰
부양%범우봉%우신강%조검봉
航天器%流体回路%仿真%热控
航天器%流體迴路%倣真%熱控
항천기%류체회로%방진%열공
spacecraft%liquid loop%simulation%thermal control
以神舟载人飞船流体回路为物理模型,分析了各个部件的工作原理、流动和传热特性,建立起辐射器、泵、阀门、补偿器、冷板和换热器的部件模型。在此基础上建立了流体回路模型,并引入实际控制策略。模型的仿真数据与航天器热平衡试验数据进行对比,结果表明,模型对流体回路各点的温度、压力、系统的流量分配和液体体积变化的补偿都能较好的进行动态模拟,并能够模拟系统控制策略的动态执行情况,可用于流体回路系统控制算法和策略的优化分析。
以神舟載人飛船流體迴路為物理模型,分析瞭各箇部件的工作原理、流動和傳熱特性,建立起輻射器、泵、閥門、補償器、冷闆和換熱器的部件模型。在此基礎上建立瞭流體迴路模型,併引入實際控製策略。模型的倣真數據與航天器熱平衡試驗數據進行對比,結果錶明,模型對流體迴路各點的溫度、壓力、繫統的流量分配和液體體積變化的補償都能較好的進行動態模擬,併能夠模擬繫統控製策略的動態執行情況,可用于流體迴路繫統控製算法和策略的優化分析。
이신주재인비선류체회로위물리모형,분석료각개부건적공작원리、류동화전열특성,건립기복사기、빙、벌문、보상기、랭판화환열기적부건모형。재차기출상건립료류체회로모형,병인입실제공제책략。모형적방진수거여항천기열평형시험수거진행대비,결과표명,모형대류체회로각점적온도、압력、계통적류량분배화액체체적변화적보상도능교호적진행동태모의,병능구모의계통공제책략적동태집행정황,가용우류체회로계통공제산법화책략적우화분석。
In order to simulate the liquid loop in Shenzhou manned spacecraft , the models of the compo-nents were set up including the radiator , the pump, the valve, the accumulator, the cool plate and the heat-exchanger by analyzing the working principle , the flow and heat transfer performance of each com-ponents .Base on the present works and the control algorithm , a control model of the liquid loop was set up.The comparison with the test data demonstrates that the model can well simulate the dynamic charac-teristics of the liquid loop system , including the temperature , the flow distribution and the volume change of the liquid.The models can be used to optimize the control algorithm and control strategy .