A kind of afterburner flow resistance test system and method thereof with engine as air source
A technology of afterburner and test system, which is applied in the field of afterburner flow resistance test system, can solve the problems of high cost and high risk, and achieve the effect of reducing cost and risk and simplifying the system
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Embodiment 1
[0026] like Figure 1-2 As shown, an afterburner flow resistance test system with an engine as a gas source includes a control system 11, and the control system 11 is electrically connected to a test system 12, an adjustable tail cone device 13 and a control object, and the control object includes an engine 2 , an afterburner 10 and an adjustable tail cone 9, the engine 2 is connected with a circular torque transfer section 3 and a test section in turn, the test section is provided with a temperature and pressure measurement system, the test section is connected with the adjustable tail cone 9, and the tail can be adjusted The vertebra device 13 is electrically connected with the adjustment tail vertebra 9 .
[0027] Working principle: Use the controller to adjust the position of the tail cone 9 to the initial position, use the test system 12 to send a control command to the controller, the controller converts the control command into an actuator signal to the engine 2, and st...
Embodiment 2
[0029] like Figure 1-3 As shown, on the basis of the above embodiments, this embodiment provides a more specific preferred structure of the system, that is, the test section includes a diffuser 5, a flame stabilizer 6 and a booster cylinder 7 connected to each other, The diffuser 5 is connected to the circular torque transfer section 3, the booster cylinder 7 is connected to the adjusting tail vertebra 9; the temperature and pressure measurement system includes a total temperature probe 14 and a total pressure probe 15, and the diffuser 5 is connected to the circular torque The contact surface of the transfer section 3 is the B-B section 4, and the D-D section 8 is provided on the booster cylinder 7, and the total temperature probe 14 and the total pressure probe 15 are respectively provided on the D-D section 8 and the B-B section 4. The probe 14 is electrically connected to the temperature signal processor 16, the total pressure probe 15 is electrically connected to the pre...
Embodiment 3
[0034] like Figure 1-3 Shown, a kind of afterburner flow resistance test method of engine as air source, comprises the following steps:
[0035] Step 1: Without installing the flame stabilizer 6, use the controller to adjust the position of the tail cone to the initial position;
[0036] Step 2: Start the engine 2 to an idle speed, use the test system 12 to send a control instruction to the engine 2 controller, and the controller converts the control instruction into an actuator signal to the engine 2; after the controller starts to idle for a period of time, accelerate to The operating speed that satisfies the environmental conditions at the inlet of the afterburner 10;
[0037] Step 3: Both the test system 12 and the controller collect the total temperature and total pressure of the B-B section 4 and the D-D section 8, and calculate the flow resistance loss of the diffuser 5 according to the total pressure recovery coefficient; wherein, the cold state total pressure recove...
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