| 变推力固体火箭发动机喉栓烧蚀试验研究 |
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| 引用本文： | 周战锋,胡春波,李江,魏祥庚,刘泽祥. 变推力固体火箭发动机喉栓烧蚀试验研究[J]. 固体火箭技术, 2009, 32(2) |
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| 作者姓名： | 周战锋 胡春波 李江 魏祥庚 刘泽祥 |
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| 作者单位： | 西北工业大学燃烧、流动与热结构国家级实验室,西安,710072 |
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| 摘 要： | 针对三维C/C和钨渗铜两种不同材质,开展了发动机喉栓的静态烧蚀及动态烧蚀研究,揭示了静态和互变条件下喉栓发动机的烧蚀规律.试验结果表明,高压静态条件与互变过程相比,喉栓烧蚀率有明显差别,高压静态比互变过程烧蚀更严重,互变过程引起的热环境变化没有造成烧蚀异常增大.因此,在工程中可采用高压静态烧蚀试验来考核喉栓材料,简化试验系统;在文中试验条件下,钨渗铜喉栓最大径向烧蚀率为0.085 mm/s,三维编织C/C材料最大径向烧蚀率为0.545 mm/s,钨渗铜比C/C材料更适用于喉栓;发动机非轴对称结构、粒子冲刷和沉积现象对烧蚀影响较大,采用同轴结构可改善流动的对称性,有利于进一步研究其他因素对烧蚀的影响.
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| 关 键 词： | 固体火箭发动机 推力调节 喉栓 烧蚀 |
Experimental investigation of erosion performance of pintle in thrust-controllable SRM |
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| ZHOU Zhan-feng,HU Chun-bo,LI Jiang,WEI Xiang-geng,LIU Ze-xiang. Experimental investigation of erosion performance of pintle in thrust-controllable SRM[J]. Journal of Solid Rocket Technology, 2009, 32(2) |
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| Authors: | ZHOU Zhan-feng HU Chun-bo LI Jiang WEI Xiang-geng LIU Ze-xiang |
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| Affiliation: | ZHOU Zhan-feng,HU Chun-bo,LI Jiang,WEI Xiang-geng,LIU Ze-xiang (College of Astronautics/National Key Laboratory of Combustion,Flow and Thermo-Structure,Northwestern Polytechnical Univ.,Xian 710072,China) |
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| Abstract: | Static and dynamic ablation experiments were carried out in a pintle rocket motor experimental system to obtain the ablation law for two different materials.The results from these experiments indicate that the ablation of pintle in high-pressure static state is more serious than that in dynamic state.As a result,the high-pressure static state ablation experiment would be more suitable for the test of the pintle material for engineering application.The largest radial ablation rate of W-Cu and 3D C/C composit... |
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| Keywords: | solid rocket motor thrust modulation pintle ablation |
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