新型耐烧蚀防热涂层在飞行器局部防热中的应用  

Application of New Ablative and Heat Resistant Coating in Local Heat Protection of Aircraft

作　　者：徐莹 刘峻瑜 樊虎 贺晨[3] 王晓雪[1] XU Ying;LIU Junyu;FAN Hu;HE Chen;WANG Xiaoxue(Beijing Institute of Space Long March Vehicle,Beijing 100076;The Third Military Representative Office of Air Force Equipment Department in Beijing Area,Beijing 100076;Aerospace Research Institute of Materials&Processing Technology,Beijing 100076)

机构地区：[1]北京航天长征飞行器研究所,北京100076 [2]空装驻北京地区第三军代表室,北京100076 [3]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2022年第4期44-48,共5页Aerospace Materials & Technology

摘　　要：本文针对一种新型耐烧蚀防热涂层在飞行器翼面局部防热中的应用进行研究。通过有限元分析方法对局部温度场及热应力变形情况的影响进行研究;同时对该新型防热涂层的抗剪切性能进行试验考核及微观形貌分析。研究表明:防热涂层的使用能够使飞行器翼面局部部位温度降低,减小材料变形,有效提高了材料的使用强度。通过发动机烧蚀试验考核,0.5 mm防热涂层的应用,能够在试样表面温度达到1006℃的情况下,背面温度降到147℃,烧蚀后表面形貌良好。该项研究为该防热涂层在飞行器局部防热的使用提供了参考。In this paper,the application of a new ablation resistant and heat resistant coating in local heat protection of aircraft wing surface was studied.The influence of local temperature field and thermal stress deformation was studied by finite element analysis method.At the same time,the shear resistance of the new antiheat coating was tested,and micro morphology was analyzed.The research shows that the application of heat resistant coating can reduce the temperature of local parts of aircraft wing surface,reduce material deformation and effectively improve the service strength of materials.Through the engine ablation test,the application of 0.5 mm heat resistant coating can reduce the back temperature to 147℃when the surface temperature of the sample reaches 1006℃,and the surface morphology is good after ablation.The study provides a reference for the application of the thermal protection coating in local thermal protection of aircraft.

关 键 词：飞行器 局部热防护 新型防热涂层 

分 类 号：TQ637.6[化学工程—精细化工]