A launch vehicle heat shield aerodynamic load simulation test device

By designing a pneumatic load simulation test device that includes a cylindrical section, connecting flanges, and a measurement and control system, the problem of accurately evaluating the load-bearing performance of the heat-resistant skirt in the existing technology has been solved, realizing low-cost, short-cycle simulation tests and improving the accuracy and efficiency of the test.

CN122409362APending Publication Date: 2026-07-17BEIJING LANDSPACETECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING LANDSPACETECH CO LTD
Filing Date
2026-05-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing technology lacks a low-cost, short-cycle test device that can effectively simulate the thermal protection skirt of a launch vehicle under the coupled action of aerodynamic and thermal loads, making it difficult to accurately evaluate the overall structural load-bearing response and failure mode of the thermal protection skirt.

Method used

A pneumatic load simulation test device was designed, comprising a first cylindrical section, a connecting flange, a mounting plate, and a measurement and control system. The device simulates pneumatic loads through a pressurization interface, a pressurization pipeline, and a pressure sensor. Combined with sealant and a camera to monitor the deformation of the heat-resistant skirt, the device simulates the actual load-bearing performance of the heat-resistant skirt.

Benefits of technology

It reduces testing costs and implementation difficulty, shortens the testing cycle, and can accurately simulate the load-bearing performance of the heat-resistant skirt under the coupled action of aerodynamic and thermal loads on the ground.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of launch vehicle heat shield aerodynamic load simulation test device, including first cylinder section, first connecting flange being installed in the top of first cylinder section and bottom plate being covered in the bottom of first cylinder section.First cylinder section is connected with inner connecting plate and is provided with first pressure sensor;First connecting flange is connected with outer ring mounting plate, inner connecting plate is detachably connected with inner ring mounting plate, outer ring mounting plate and inner ring mounting plate are used to install heat shield body between;Bottom plate is provided with first booster interface, first booster interface is communicated with first booster pipeline, first booster pipeline is located outside first cylinder section and its end is communicated with gas source, first booster pipeline is provided with first booster solenoid valve.The test device further includes measurement and control system, and first pressure sensor and first booster solenoid valve are connected with measurement and control system communication.The present application reduces test cost and test implementation difficulty, greatly shortens test cycle, and can effectively simulate the real bearing performance of heat shield.
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