Support configuration design method of central combustion test model and support configuration

By designing a cylindrical body with connecting flanges and a supporting protective sleeve, setting radial sealing grooves and cooling channels, and optimizing the support configuration, the stability and lightweighting issues of the support structure under high-temperature environments were solved, and the accuracy and convenience of combustion tests were improved.

CN122389245APending Publication Date: 2026-07-14INST OF AEROSPACE TECH CHINA AERODYNAMIC RES & DEV CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF AEROSPACE TECH CHINA AERODYNAMIC RES & DEV CENT
Filing Date
2026-06-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing support structures are prone to deformation in high-temperature environments, are inconvenient to operate, and are difficult to achieve while maintaining lightweight design, which affects the stability of the combustion flow field and the accuracy of experimental data.

Method used

The design incorporates a cylindrical body with connecting flanges and a supporting protective sleeve, features radial sealing grooves and cooling channels, optimizes the support configuration to adapt to high-temperature environments, and calculates various parameters using formulas to ensure stability and sealing.

Benefits of technology

It achieves stability and lightweight support structure under high temperature environment, reduces interference with combustion flow field, and improves the accuracy of test data and ease of operation.

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Abstract

This invention discloses a support configuration design method and configuration for a central combustion test model, relating to the fields of aerospace propulsion theory and engineering technology. The method includes: S1, designing a cylindrical body with connecting flanges that fully surrounds the test model, wherein multiple bases are arranged circumferentially around the cylindrical body to mate with the test model; S2, designing support protective sleeves that mate with each base, and determining the flow diameter of the test fluid within each support protective sleeve based on the required test fluid flow rate inside the central combustion test model; S3, converting the radial sealing groove diameter D7 at various points in the support configuration; S4, designing the parameters of the cooling channels in the support protective sleeves; S5, determining the number of bases and cylindrical body parameters, and designing pressure blocks to fix each support protective sleeve to its corresponding base. The support configuration of this invention employs an optimized design, enabling long-term stable operation under complex high-temperature environments and avoiding support failure due to thermal deformation or oxidation damage.
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