| 飞行过载对固体火箭发动机不稳定燃烧的影响 |
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| 引用本文： | 张翔宇,高波,甘晓松,马亮,周艳青.飞行过载对固体火箭发动机不稳定燃烧的影响[J].宇航学报,2019,40(8):972-976. |
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| 作者姓名： | 张翔宇 高波 甘晓松 马亮 周艳青 |
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| 作者单位： | 1.中国航天科技集团有限公司第四研究院第四十一所燃烧、热结构与内流场重点实验室，西安 710025；
2.中国航天科技集团有限公司第四研究院，西安 710025 |
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| 摘 要： | 针对某固体发动机飞行试验中出现的压强振荡现象，开展压强振荡特性分析、机理分析及声模态数值仿真，提出该非线性不稳定燃烧故障的两种可能的触发模式。通过建立脉冲激励试验方法及火箭橇过载模拟试验方法对故障发动机开展试验研究，并验证了导弹飞行过载是引起发动机不稳定燃烧的最主要原因。
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| 关 键 词： | 不稳定燃烧 压强振荡 飞行过载 固体火箭发动机 |
| 收稿时间： | 2018-09-05 |
Impacts of Flight Acceleration on Combustion Instability of Solid Rocket Motor |
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| ZHANG Xiang yu,GAO Bo,GAN Xiao song,MA Liang,ZHOU Yan qing.Impacts of Flight Acceleration on Combustion Instability of Solid Rocket Motor[J].Journal of Astronautics,2019,40(8):972-976. |
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| Authors: | ZHANG Xiang yu GAO Bo GAN Xiao song MA Liang ZHOU Yan qing |
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| Affiliation: | 1. Science and Technology on Combustion, Internal Flow and Thermo Structure Laboratory, The 41st Institute of the Fourth Academy of CASC, Xi’an 710025, China; 2. The Fourth Academy of CASC, Xi’an 710025, China |
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| Abstract: | The combustion instability phenomenon of a missile engine is analyzed by using the spectrum analysis of the pressure data and the acoustic mode analysis by the numerical simulation of the chamber. Two kinds of mechanisms of inducing nonlinear combustion instability are proposed. It is proved that the acceleration of the missile is the main cause of the engine combustion instability by comparing the results of the pulse-triggered test and the rocket sled test. |
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| Keywords: | Combustion instability Pressure oscillation Flight acceleration Solid rocket motor |
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