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<p>Based on using a complex of high-temperature gas-dynamic test benches, a methodology for modeling operating conditions and studying the performance of aerospace engineering structural elements with reusable and ablative heat-shielding coatings has been developed. Several variants of fixing a reusable three-layer heat-shielding structure on the test chamber were investigated. Considering the results of numerical calculations of the deformed state of this structure in the test chamber, its optimal variant was selected and recommended for implementation. Ablative heat shielding coatings were studied on models of conical fairings and simulators of aerodynamic guides in a high-temperature gas flow. Taking into account the results of numerical calculations of the thermal state of coated structural elements, the basic parameters of the fuel-air mixture components were established, which ensure the reproduction of the specified temperatures on the coating surface at different moments of the aerodynamic heat load cycle.</p>

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Basic Methodology for Studying High-Temperature Performance of Airspace Structural Elements Made of Composite Materials. Part 2. Study of Thermal Protection

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • K. P. Buiskykh

摘要

Based on using a complex of high-temperature gas-dynamic test benches, a methodology for modeling operating conditions and studying the performance of aerospace engineering structural elements with reusable and ablative heat-shielding coatings has been developed. Several variants of fixing a reusable three-layer heat-shielding structure on the test chamber were investigated. Considering the results of numerical calculations of the deformed state of this structure in the test chamber, its optimal variant was selected and recommended for implementation. Ablative heat shielding coatings were studied on models of conical fairings and simulators of aerodynamic guides in a high-temperature gas flow. Taking into account the results of numerical calculations of the thermal state of coated structural elements, the basic parameters of the fuel-air mixture components were established, which ensure the reproduction of the specified temperatures on the coating surface at different moments of the aerodynamic heat load cycle.