The invention belongs to the field of aircraft strength tests, and particularly relates to a wide-temperature-range environment simulation test device of an aircraft thermal protection structure. The device comprises a compressed air nozzle (1), a liquid nitrogen nozzle (2), a heater (4) and an integral supporting structure (5), the integral supporting structure (5) is of a cylinder structure and sequentially comprises an airflow mixing section, a test section and an exhaust section from front to back; the compressed air nozzle (1) and the liquid nitrogen nozzle (2) are arranged on an airflow mixing section of the integral supporting structure (5), the heater (4) is mounted on an upper wall plate of a test section of the integral supporting structure (5) through the heater bracket (3), and the test piece (6) is fixed on a lower wall plate of the test section of the integral supporting structure (5); and a test piece temperature sensor (7) is arranged on the test piece (6). The high-speed wide-temperature-range simulation test requirement is met, the simulation precision is high, the temperature range is wide, the device is simple, the reliability is high, and the cost is low.
本申请属于飞机强度试验领域,特别涉及一种飞行器热防护结构的宽温幅环境模拟试验装置。该装置包括压缩空气喷嘴(1)、液氮喷嘴(2)、加热器(4)及整体支撑结构(5);所述整体支撑结构(5)为筒体结构,自前向后依次包括气流混合段、试验段及排气段;压缩空气喷嘴(1)及液氮喷嘴(2)设置在整体支撑结构(5)的气流混合段,加热器(4)通过加热器支架(3)安装在所述整体支撑结构(5)的试验段上壁板处,试验件(6)固定在所述整体支撑结构(5)的试验段下壁板处;所述试验件(6)上设置有试验件温度传感器(7)。本申请满足了急速宽温幅模拟试验需求,模拟精度高,温幅宽,装置简单,可靠性高,成本低廉。
Wide-temperature-range environment simulation test device for thermal protection structure of aircraft
一种飞行器热防护结构的宽温幅环境模拟试验装置
2024-02-20
Patent
Electronic Resource
Chinese
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 |
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