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兵工学报 ›› 2022, Vol. 43 ›› Issue (11): 2897-2904.doi: 10.12382/bgxb.2021.0590

• 论文 • 上一篇    

碳/碳化硅复合材料接触热阻计算方法

曹占伟1,2, 陈鑫1, 付斌1, 徐晓亮1, 袁野1, 毛伟1, 王培枭1, 姚军1, 梅杰1   

  1. (1.中国运载火箭技术研究院 空间物理重点实验室, 北京 100076; 2.西安交通大学 能源与动力工程学院, 陕西 西安 710049)
  • 上线日期:2022-06-24
  • 通讯作者: 陈鑫(1988—),男,博士 E-mail:blingkx@hotmail.com
  • 作者简介:曹占伟(1981—), 男, 博士。 E-mail: caozhanwei2000@aliyun.com
  • 基金资助:
    国家自然科学基金项目(12102056)

Engineering Investigations of Thermal Contact Resistance of C/SiC Composite Materials

CAO Zhanwei1,2, CHEN Xin1, FU Bin1, XU Xiaoliang1, YUAN Ye1, MAO Wei1, WANG Peixiao1, YAO Jun1, MEI Jie1   

  1. (1.Science and Technology on Space Physics Laboratory, China Academy of Launch Vehicle Technology, Beijing 100076, China; 2.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China)
  • Online:2022-06-24

摘要: 在高速飞行器结构与防隔热系统设计及评估中,需要准确判断接触热阻对结构热响应的影响。针对当前高速飞行器采用性能优异的碳/碳化硅复合材料,建立了该材料接触热阻理论计算方法,并完成了典型工况地面风洞验证试验研究,进一步利用该方法开展碳/碳化硅复合材料之间接触热阻的变化规律研究。研究结果表明,建立的高温接触热阻计算方法与地面风洞试验结果对比具有较好的精度,典型工况下碳/碳化硅复合材料接触热阻的热响应预示结果与地面试验结果误差仅约4%,有关结果可以为高速飞行器结构与热防护系统的设计及安全评估提供参考。

关键词: 碳/碳化硅, 接触热阻, 理论方法, 地面试验

Abstract: Thermal contact resistance must be accurately evaluated to ensure proper design and safety of hypersonic vehicles. In terms of the C/SiC composite material for hypersonic vehicle structures, an approach for assessing the thermal contact resistance of this material is proposed and wind tunnel experiments are performed. The change law of the thermal contact resistance for the C/SiC composite material is also investigated. The results show that the thermal contact resistance and contact resistance proposed in this paper have good accuracy compared with the wind tunnel results, with a difference of only 4%. The proposed approach and test results serve as a reference for designing and evaluating the structure and thermal protection performance of hypersonic vehicles.

Key words: C/SiCcompositematerial, thermalcontactresistance, engineeringmethod, experimentalinvestigation

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