The invention belongs to the field of heat intensity tests of aircraft heat-proof materials, and particularly relates to a heat flow control test method. The method comprises the following steps: constructing a heat flow control simulation test system, and controlling a heater to apply a test heat flow load to a simulation piece through a controller; acquiring a control output value for performing heat flow control on the simulation part, and storing the control output value in a controller for a formal test as a standby command value for test control; constructing a heat flow control formal test system, controlling a heater to apply a test heat flow load to a test piece through a controller for a formal test, acquiring a feedback signal of a heat flow meter in real time by the controller, judging whether feedback of the heat flow meter is invalid or not, and if not, performing closed-loop control by the controller according to a received feedback value of the heat flow meter; and if yes, switching the controller to the standby command value for open-loop control. When the heat flow meter breaks down, the closed-loop feedback control mode is switched into the open-loop control mode, and risks caused by failure of the heat flow meter are avoided.
本申请属于飞行器防热材料热强度试验领域,特别涉及一种热流控制试验方法。包括:构建热流控制模拟试验系统,通过控制器控制加热器对模拟件施加试验热流载荷;获取对模拟件进行热流控制的控制输出值,并将控制输出值存储到正式试验用的控制器中作为试验控制的备用命令值;构建热流控制正式试验系统,通过正式试验用的控制器控制加热器对试验件施加试验热流载荷,控制器实时获取热流计的反馈信号,并判定热流计的反馈是否失效,若否,则控制器根据接收的热流计的反馈值进行闭环控制;若是,则控制器切换到所述备用命令值进行开环控制。本申请在热流计发生故障时,将闭环反馈控制模式切换成开环控制模式,避免热流计失效带来的风险。
Heat flow control test method
一种热流控制试验方法
2021-06-04
Patent
Elektronische Ressource
Chinesisch
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen |
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