接触热阻对喉衬温度场的影响(英文)  

Effect of contact thermal resistance on the throat temperature field

作　　者：李书良[1] 侯晓[1,2] 史宏斌 黄海明[3] 

机构地区：[1]西北工业大学航天学院,西安710072 [2]西安航天动力技术研究所,燃烧、热结构与内流场国防科技重点实验室,西安710025 [3]北京交通大学,北京100044

出　　处：《固体火箭技术》2013年第2期180-184,共5页Journal of Solid Rocket Technology

基　　金：Project(61391) supported by the National Basic Research Program of China

摘　　要：通过计算和实验测试研究了接触热阻对喉衬温度场的影响。测试了轴编C/C复合材料和5-Ⅱ材料粘接状态下的接触热阻,并建立了考虑接触热阻的计算模型。结果表明,接触压力对接触热阻影响显著,而接触温度影响较弱;接触热阻对喉衬组件温度场具有明显影响,既使喉衬温度升高,又使得背壁的温度降低。The effect of contact thermal resistance （CTR） on the temperature of throat-insert was studied numerically and ex- perimentally. The CTR of 4D in-plane C/C composite bonded with 5-II insulator was tested, and then the numerical model was es- tablished. The results show that the influence of contact pressure on CTR is significant, while the contact temperature has little effect. Under the same conditions of calculation, it is shown that the throat-insert temperature calculated with CTR is higher, while the temperature of insulator is lower than that without CTR.

关 键 词：接触热阻 温度场 喉衬 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]