Study on the thermal protection performance of superalloy honeycomb panels in high-speed thermal shock environments  

作　　者：Dafang Wu Anfeng Zhou Liming Zheng Bing Pan Yuewu Wang 

机构地区：[1]School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics [2]School of Astronautics, Beijing University of Aeronautics and Astronautics

出　　处：《Theoretical & Applied Mechanics Letters》2014年第2期19-26,共8页力学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(11172026 and 91216301);the Specialized Research Fund for the Doctoral Program of Higher Education(20131102110014)

摘　　要：The thermal protection performance of superalloy honeycomb structure in high-temperature environments are important for thermal protection design of high-speed aircrafts. By using a self-developed transient aerodynamic thermal simulation system, the thermal protection performance of superalloy honeycomb panel was tested in this paper at different transient heating rates ranging from 5℃/s to 30℃/s, with the maximum instantaneous temperature reaching 950℃. Furthermore, the thermal protection performance of superalloy honeycomb struc- ture under simulated thermal environments was computed for different high heat- ing rates by using 3D finite element method, and a comparison between calcu- lational and experimental results was carded out. The results of this research provide an important reference for the design of thermal protection systems com- prising superalloy honeycomb panel.The thermal protection performance of superalloy honeycomb structure in high-temperature environments are important for thermal protection design of high-speed aircrafts. By using a self-developed transient aerodynamic thermal simulation system, the thermal protection performance of superalloy honeycomb panel was tested in this paper at different transient heating rates ranging from 5℃/s to 30℃/s, with the maximum instantaneous temperature reaching 950℃. Furthermore, the thermal protection performance of superalloy honeycomb struc- ture under simulated thermal environments was computed for different high heat- ing rates by using 3D finite element method, and a comparison between calcu- lational and experimental results was carded out. The results of this research provide an important reference for the design of thermal protection systems com- prising superalloy honeycomb panel.

关 键 词：superalloy honeycomb panel thermal shock high temperature numerical simulation 

分 类 号：O354[理学—流体力学]