关键词: 高温合金, 前缘, 热防护, 隔热, 结构隔热一体化设计

Abstract:

Leading edge using metallic thermal protection system consists of super alloy honeycomb and thermal insulation felt, duct fastening, which has the function of loading and thermal insulation capacity. The leading edge is easy to be disassembled and maintained, with economic efficiency and safety. The leading edge's loading and thermal insulation capacity are analyzed, then the final structure design is obtained. Super alloy honeycomb has good thermal insulation effect, and has high temperature resistance at 1 200℃. The material of thermal insulation felt maintains excellent thermal insulation effect in high temperature test, so the correctness of heat transfer analysis method is verified. By modeling local heat transfer analysis structure, the leading edge design parameters can be iteratively fixed to achieve the leading edge structure-thermal integrative design.

Key words: super alloy, leading edge, thermal protection, thermal insulation, structure-thermal integrative design