Experimental investigations of thermal modal parameters for a C/SiC structure under 1600 °C high temperature environment

Investigation on the Reliability of an Ablation Thermal Protection Coating with Adjustable Thickness under Aerothermal–Vibration Coupling Environment

“…[ 29,30 ] Until now, most of the thermovibration experiments have been carried out to study the modal characteristics of materials or structures under static high‐temperature environment, and little attention has been paid to the reliability of structures under strong vibration environment. [ 31–33 ] With the significant increase of design speed of supersonic vehicles, the impact of aerothermal–vibration coupling environment encountered during flight on the reliability of thermal protection structures or materials is increasingly unpredictable. Therefore, the thermal insulation and structural reliability testing of ATPCs under aerothermal–vibration coupling environment is crucial for the safety and reliability design of supersonic vehicles.…”

Thermal insulation and structural reliability of modified epoxy resin‐based ablation thermal protection coatings in aerothermal‐vibration coupling environment

“…[31,32] Until now, the methods of finite element numerical simulation or ground joint experiment have been widely used to study thermalvibration characteristics of structures. Unfortunately, most thermal vibration experiments mainly study the variation of structural modes with temperature or material composition, [33][34][35][36][37][38] which is very unfavorable to accurately evaluate the structural reliability of TPS under the coupling of aerothermal and random vibration environment caused by the combined effects of aerodynamics, aerodynamic noise, and engine operation. In order to verify whether the structure of ATPCs will be damaged in the coupling environment of aerothermal and strong vibration, a ground aerothermal-vibration coupling test system that can effectively simulate the actual service environment of supersonic aircraft must be established.…”