High-temperature aerobic loading optical measurement system
An optical measurement system and loading system technology, applied in the field of high-temperature aerobic loading optical measurement systems, can solve the problems of drift, inability to measure the full-field displacement deformation field, etc., and achieve the effect of simple operation
Inactive Publication Date: 2012-03-14
TSINGHUA UNIV
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Problems solved by technology
At present, there are many high-temperature test methods. Traditional electrical measurement methods and high-temperature extensometer measurement methods cannot measure the full-field displacement and deformation field, and there are serious drift problems caused by excessive temperature.
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[0014] The specific embodiments of the present invention will now be further described with reference to the drawings.
[0015] figure 1 , 2 It is a schematic diagram of the structure principle of the present invention. The high temperature aerobic loading optical measurement system of the present invention includes a loading system 1, a high temperature furnace 2, a data acquisition and processing system 3, a pneumatic pump 4, a control and display system 5; the control and The display system 5 includes a temperature control and recorder 6, an oxygen pressure controller 7, a force display 8, a stepping motor controller 9 and a stepping motor driver 10. The loading system includes a stepping motor 11 and a threaded connecting rod 12. Force sensor 15, bellows 17, moving specimen clamping rod 18, fixed specimen clamping rod 22 and loading frame 23; one end of the threaded connecting rod is connected to the output shaft of the stepping motor 11, The other end is connected to the upp...
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The invention discloses a high-temperature aerobic loading optical measurement system, belonging to the technical fields of optical mechanics, engineering material, member deformation and displacement test. The measurement system is composed of a loading system, a high-temperature furnace, a data collection and processing system, a control and display system and the like. According to the high-temperature aerobic loading optical measurement system, actual work environment of components in aerospace vehicles can be simulated, the research on mechanical property, deformation state and failure mechanism of high-temperature material and components in high-temperature and aerobic environment can be implemented by combining with a digital image correlation and moire interference optical measurement method, and non-contact measurement and whole measurement of deformation fields of material and structure can be implemented by using a digital speckle correlation system or a moire interference test system. The system has the advantages of convenience for use, compact structure, high measurement accuracy and the like; according to the system, the research on deformation of the high-temperature material and structure in environments with different temperatures, oxygen pressures, loading and protection gases can be implemented.
Description
Technical field [0001] The invention relates to a high temperature aerobic loading optical measurement system, which belongs to the technical fields of photometry mechanics, engineering materials, component deformation and displacement testing. Background technique [0002] With the needs of the aviation, aerospace, power industry and other departments for the research on the deformation of in-service high-temperature components, the mechanical properties of materials and structures in high-temperature environments, as well as the deformation state and failure mechanism have received increasing attention from researchers. In many aerospace engineering fields, high-temperature materials and structures work in high-temperature aerobic environments for a long time. Therefore, the mechanical performance testing of high-temperature materials and structures in a simulated actual working environment plays a guiding role in the safety research of aviation and aerospace vehicles. The role...
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Inventor 谢惠民王怀喜
Owner TSINGHUA UNIV