|
|||||
|
|
| 气动压力对柔性热防护结构隔热性能的影响 | |
| 引用本文： | 秦,强,任青梅,王 琦,蒋军亮,成 竹.气动压力对柔性热防护结构隔热性能的影响[J].宇航材料工艺,2010,40(5). |
| 作者姓名： | 秦 强 任青梅 王 琦 蒋军亮 成 竹 |
| 作者单位： | 中国飞机强度研究所,西安 710065 |
| 摘 要： | 提出"等效导热热阻"这一参数来反映柔性热防护结构的隔热性能,用石英灯辐射加热和机械加压的方式来模拟柔性热防护结构服役过程中的的气动热/压环境,根据所做热试验的结果数据研究了在一定温度下,气动压力对柔性热防护结构等效导热热阻的影响规律。结果表明:随着气动压力的增大,柔性热防护结构的隔热性能呈非线性下降趋势,因此在对柔性热防护结构设计时,必须考虑其服役过程中表面气动压力对其隔热性能的影响。 |
| 关 键 词： | 柔性热防护结构 等效导热热阻 气动压力 地面模拟试验 |
Analysis of Influence of Aerodynamic Pressure on Properties ofFlexible Thermal Protection Structure Insulation |
|
| Qin Qiang,Ren Qingmei,Wang Qi,Jiang Junliang,Cheng Zhu.Analysis of Influence of Aerodynamic Pressure on Properties ofFlexible Thermal Protection Structure Insulation[J].Aerospace Materials & Technology,2010,40(5). | |
| Authors: | Qin Qiang Ren Qingmei Wang Qi Jiang Junliang Cheng Zhu |
| Institution: | Aircraft Strength Research Institute of China,Xian 710065 |
| Abstract: | In this paper,one parameter called "equivalent thermal resistance" was raised to reflect insulation of flexible thermal protection structure, and experiments were conducted to analyze the law between this parameter and aerodynamic pressure on the surface of flexible thermal protection structure. The insulation property of flexible thermal protection structure non linearly declines as aerodynamic pressure rises. So the effect of aerodynamic pressure on insu lation property of flexible thermal protection structure should be taken into account in designing. |
| Keywords: | Flexible thermal protection structure Equivalent thermal resistance Aerodynamic pressure Ground-based experimental simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《宇航材料工艺》浏览原始摘要信息 | |
| 点击此处可从《宇航材料工艺》下载免费的PDF全文 | |