A modular rigid ceramic tile assembly

Abstract

The present application discloses a modular rigid ceramic tile assembly. It includes a single ceramic tile prefabricated body and a fixed structure for integrating the single ceramic tile prefabricated body; this application specifically uses a single ceramic tile prefabricated body integrated into the fixed structure to realize the standardized and modular assembly of the ceramic tile prefabricated body, and at the same time provide Realize the measurement of environmental parameters and provide an expanded platform; ceramic tiles are installed on the metal base plate, and a strain isolation pad is set between the ceramic tiles and the metal base plate, which serves as a transition layer between the ceramic tiles and the metal base plate to release the strain caused by the two materials. The amount of strain caused by different linear expansion coefficients; the holes of the metal base plate are aligned with the positioning holes at the edge of the ring frame of the metal frame one by one, and then fixed by the fixed insert, and the fixed rod of the fixed insert is inserted into the corresponding hole and In the positioning hole, fastening screws are further used to connect the connection hole on the fixed insert with the metal frame, so as to realize the fixing effect of the fixed insert and reduce the risk of ceramic tile falling off.

Description

technical field [0001] The present disclosure generally relates to the technical field of aircraft structural defense and heat insulation, and specifically relates to a modular rigid ceramic tile assembly. Background technique [0002] Rigid ceramic tiles were used for the first time on the windward side of the space shuttle, which separated the problems of heat protection and heat insulation. The rigid ceramic tiles used by the space shuttle solved the problems of quality, thermal expansion, connection and sealing that could not be solved by metal thermal protection at that time, but there were problems such as brittleness, water absorption and high maintenance costs. From the 1980s to the present, enhanced, heat-resistant, and durable upgraded ceramic tiles have been continuously released and applied to space shuttles and later hypersonic vehicles, but these upgrades mainly focus on the improvement of material properties. For rigid ceramic tiles The assembly process, main...

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Problems solved by technology

[0003] Specifically, in terms of assembly technology, take rigid heat-insulating tiles (ceramic tiles for space shuttle) as an example, the existing ceramic heat-resistant tile solutions without exception require a large number of ceramic tiles to be bonded to the surface of the aircraft, and need to be based on the aircraft The topological optimization design of the outer surface, each ceramic tile cannot be enlarged due to the constraints of material properties and machinability, so it has formed a huge assembly workload of tens of thousands of heat-resistant tiles to form a heat-resistant insulation layer

The assembly of a large number of parts can lead to process stability problems, which in turn increases the risk of falling off

[0004] In terms of quick replacement, at the beginning of the design of the space shuttle, it was ideally believed that the ground repair time between two launches would only take 1 to 2 weeks. The interval is extended to at least 2 months. The installation of traditional ceramic tiles is limited by the pasting form and cannot meet the needs of rapid deployment, rapid response, and short launch intervals of future spacecraft.

[0005] In terms of fault location, since the ceramic tiles are directly pasted on the surface of the cabin skin, if the temperature sensor inside the cabin encounters abnormal data, it can only locate the fault to a general area, and cannot further increase the resolution fineness, let alone directly locate a certain piece of ceramic watts, resulting in extremely low maintenance efficiency

[0006] In terms of environmental perception, traditional ceramic tiles only play a role in preventing heat insulation. The aircraft is equipped with temperature sensors in some key parts to monitor the internal temperature. The internal wiring is complicated, which limits the fineness of the temperature collection of the whole arrow

[0007] Therefore, we propose a modular rigid ceramic tile assembly to solve the problem of the large number of rigid ceramic tiles assembled, easy to fall off, unable to meet the rapid deployment of future spacecraft, imprecise fault location, low maintenance efficiency, and affecting the fineness of the temperature collection of the whole arrow. degree of question

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