Research advances in thermal-acoustic fatigue problems of aircraft structures

Abstract

The structures of hypersonic vehicle surfaces，engine blades，internal ducts and exhaust ducts may generate thermal-acoustic fatigue damage because of high temperature and high-intensity noise environments. Thus，it is of significance to study the thermal-acoustic fatigue problems for improving the durability and reliability of such structures. Thermal-acoustic fatigue problems of aircraft structure have received widespread attention. In this paper，the research status of thermal-acoustic fatigue problems and the research progress during the theoretical research，simulation analysis and experimental technology of thermal-acoustic fatigue are summerized both at home and abroad. The research status of structural thermal-acoustic fatigue in foreign countries is reviewed from the 1970s to the present from a time perspective. The work carried out by domestic research institutes and higher education institutions in this field is introduced according to the classification of research units. On this basis，the technical difficulties are analyzed and the further development is proposed during the research on thermal-acoustic fatigue of aircraft structures.

Keywords

• thermal-acoustic load
• vibration response
• high temperature acoustic fatigue
• life estimation
• thinwalled panel
• thermal-acoustic testing