| 高硅氧增强塑料烧蚀模型中热解层厚度的探讨 |
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| 引用本文： | 蔡体敏,王思民.高硅氧增强塑料烧蚀模型中热解层厚度的探讨[J].推进技术,1989,10(1):10-13,71,72. |
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| 作者姓名： | 蔡体敏 王思民 |
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| 作者单位： | 西北工业大学
(蔡体敏)，西北工业大学(王思民) |
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| 摘 要： | 通过小型实验固体火箭发动机的多次热试车,对喷管扩散段截面上高硅氧酚醛材料的色变厚度进行了观察,对该截面上材料采用红外光谱成份分析和导电性测量,确认了热解层厚度与碳化层厚度具有相同的数量级,可达2.5mm左右.因此,在作高硅氧酚醛喷管材料的烧蚀与温度场计算时,不宜采用热解面模型,而应采用热解层模型.
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| 关 键 词： | 火箭发动机喷管 烧蚀 模型 玻璃纤维增强塑料 固体火箭发动机 |
A DISCUSSION ON THE THICKNESS OF PYROLYSIS LAYER IN THE ABIATION MODEL FOR SILICAPHENOLICS COMPOSITE MATERIAL |
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| Cai Timin and Wang Simin.A DISCUSSION ON THE THICKNESS OF PYROLYSIS LAYER IN THE ABIATION MODEL FOR SILICAPHENOLICS COMPOSITE MATERIAL[J].Journal of Propulsion Technology,1989,10(1):10-13,71,72. |
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| Authors: | Cai Timin and Wang Simin |
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| Institution: | The Northwestera Potytechnieal University |
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| Abstract: | By means of the firing tests of a small experimental solid: rocket motor, o-bserving colour change of the silica-phenolics composite material on the divergent section of the nozzle, and also using infrared ray spectral analysis and condu-ctimetry for the meter ill coundl the she chickness of pyroly-sis layer is of the same order of magnitude as the thickness of charring layer, which is up to 2.5mm. For this reason, It is concluded that the pyrolysis layer model,rather than the pyrolysis surfacc model should be adopted to calculate of the
ablation rate and the temperature distribution of the silica-phenolies composite no-
zzle. |
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| Keywords: | Rocket engine nozzle Ablation Model Class fiber reinforced plastic Solid rocket engine |
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