Cable cover surface heat flux density and pressure measuring device and application method thereof

A heat flux density and measuring device technology, applied in measuring devices, force/torque/power measuring instruments, measuring heat, etc., to achieve the effects of wide measurement range, simple installation and disassembly, and reasonable structure

Pending Publication Date: 2022-03-25
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a cable cover surface heat flux density and pressure measurement device and its use method, whi

Method used

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  • Cable cover surface heat flux density and pressure measuring device and application method thereof
  • Cable cover surface heat flux density and pressure measuring device and application method thereof
  • Cable cover surface heat flux density and pressure measuring device and application method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] like figure 1 and figure 2 As shown, a device for measuring heat flux density and pressure on the surface of a cable cover includes an arc-shaped raised probe 1, a bracket 2 and a bottom plate 3; the arc-shaped raised probe 1, the bracket 2, and the bottom plate 3 are sequentially connected to form an airtight casing;

[0033] The arc surface on the upper surface of the arc convex probe 1 is consistent with the arc surface of the aircraft on which the cable cover is installed; the arc convex probe 1 has a plurality of connection holes, and the connection holes include a plurality of heat flow measurement holes for installing the heat flow sensor 4 5 and a plurality of pressure measuring holes 7 for connecting the pressure sensor 6.

[0034] The bracket 2 is fixedly installed on the external nozzle pipe so that the airflow direction of the nozzle pipe is parallel to the upper surface of the raised probe 1 on the arc surface; the bottom plate 3 is provided with wiring h...

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PUM

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Abstract

The invention provides a cable cover surface heat flux density and pressure measuring device and a use method thereof, the structure comprises a cambered surface projection probe, a support and a bottom plate, the cambered surface projection probe, the support and the bottom plate are connected in sequence to form a closed housing; the cambered surface of the upper surface of the cambered surface protruding probe is consistent with the cambered surface of an aircraft provided with a cable cover, and the cambered surface protruding probe is provided with a plurality of connecting holes used for being connected with a heat flow sensor or a pressure sensor. The bottom plate is provided with wiring holes, and tail wires of the heat flow sensor and the pressure sensor penetrate through the wiring holes to be connected with external testing equipment. The cable cover surface cold wall heat flux density and pressure measuring device solves the problem of cable cover surface cold wall heat flux density and pressure measurement in a wind tunnel test, and is reasonable in structure, simple to mount and dismount, high in measurement precision, wide in measurement range and reusable.

Description

technical field [0001] The invention relates to the technical field of aerospace vehicle ground aerodynamic thermal tests, in particular to a measuring device for heat flux density and pressure on the surface of a cable cover and a method for using the same. Background technique [0002] In order to solve the heat protection problem of the aircraft cable cover, it is necessary to evaluate the heat insulation performance and ablation erosion resistance performance of the cable cover heat protection material during flight. The evaluation is usually carried out in the ground thermal environment simulation equipment, namely the arc wind tunnel. The high-temperature airflow parameters usually simulated in the assessment test of cable cover heat-proof materials mainly include surface cold wall heat flux density, surface pressure, recovery enthalpy, etc. Therefore, it is very important to accurately measure the surface cold wall heat flux density and pressure of the cable cover duri...

Claims

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Application Information

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IPC IPC(8): G01K17/08G01L5/00
CPCG01K17/08G01L5/0038
Inventor 谢旭许考朱晓军周凯杨忠凯
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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