Aerospace vehicle thermal protection component test setup
An aerospace and thermal protection technology, applied in the field of testing, can solve problems such as the inability to calculate the full field temperature field and deformation field, and the difficulty of obtaining test images with technology, so as to achieve the effect of improving image resolution and accurate test results.
Active Publication Date: 2021-02-12
TSINGHUA UNIV
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Problems solved by technology
Existing thermal protection assessments mainly use high-temperature testing methods such as arc wind tunnels, but in actual tests, the testing of thermal protection components, especially the measurement of temperature field and deformation field, is challenging
The difficulty in testing thermal protection components lies in a series of image acquisition and analysis problems brought about by the large size. It is difficult for related technologies to obtain clear and complete test images, and it is impossible to calculate the full-field temperature field and deformation field. very adverse effect
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[0050] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0051] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.
[0052] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...
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The disclosure relates to a testing device for thermal protection components of aerospace vehicles, the device includes an assessment cabin, a camera unit, a light emitting unit, a temperature measuring unit, a slide rail bracket, a slide rail support and a control unit: the control unit is used to control heating The unit heats the thermal protection component; when the thermal protection component is heated, the light-emitting unit is controlled to emit light, the camera unit is controlled to collect images, and the temperature measurement unit is controlled to collect the single-point reference temperature of the preset reference point of the thermal protection component; for each The image collected by the camera component is processed to obtain a spliced image, which is a complete surface image of the thermal protection component; the displacement field and strain field of the thermal protection component are determined using the spliced image; the temperature field is determined by using the spliced image and a single-point reference temperature. In the present disclosure, multiple camera components are used to capture images of the thermal protection device, which can improve image resolution, determine the displacement field, strain field and temperature field of the thermal protection device, thereby obtaining accurate test results.
Description
technical field [0001] The disclosure relates to the technical field of testing, in particular to a testing device for thermal protection components of aerospace vehicles. Background technique [0002] Aerospace vehicle thermal protection components (such as large-scale flat plate structure) are important parts of aerospace vehicle external thermal protection, and have very important application value in engineering. In order to ensure the stability and reliability of thermal protection components during service, it is essential to perform thermal protection assessment on the thermal protection components used before service. Existing thermal protection assessments mainly use high-temperature testing methods such as arc wind tunnels, but in actual tests, the testing of thermal protection components, especially the measurement of temperature field and deformation field, is challenging. The difficulty in testing thermal protection components lies in a series of image acquisit...
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IPC IPC(8): G06T7/00G06T3/40B64F5/60
CPCB64F5/60G06T3/4038G06T7/0004G06T2207/20221
Inventor 冯雪张金松唐云龙岳孟坤
Owner TSINGHUA UNIV