| 阀门作动速度对流量可调固体火箭冲压发动机动态响应特性的影响 |
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| 引用本文： | 马立坤,夏智勋,胡建新.阀门作动速度对流量可调固体火箭冲压发动机动态响应特性的影响[J].导弹与航天运载技术,2012(2):8-13. |
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| 作者姓名： | 马立坤 夏智勋 胡建新 |
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| 作者单位： | 国防科学技术大学高超声速发动机技术国防科技重点实验室,长沙,410073 |
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| 摘 要： | 利用数值模拟的方法,通过研究调节阀以不同速度作动时燃气发生器压强、燃气流量和发动机推力等参数的响应情况,分析了阀门作动速度对燃气流量可调固体火箭冲压发动机动态响应特性的影响.结果表明,调节阀作动速度对参数的响应速度和负调量均有较大影响,其过大或过小均不利于发动机整体性能的提高；在实际情况下,需要综合考虑,以选择合适的阀门作动速度.
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| 关 键 词： | 固体火箭冲压发动机 流量调节 动态响应 动网格 |
Effects of Valve Velocity on the Dynamic Response Characteristics of Variable Flow Ducted Solid Rocket Motor |
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| Ma Likun
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Xia Zhixun
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Hu Jianxin.Effects of Valve Velocity on the Dynamic Response Characteristics of Variable Flow Ducted Solid Rocket Motor[J].Missiles and Space Vehicles,2012(2):8-13. |
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| Authors: | Ma Likun Xia Zhixun Hu Jianxin |
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| Affiliation: | (Science and Technology on Scramjet Laboratory,National University of Defense Technology,Changsha,410073) |
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| Abstract: | The effects of valve velocity on the dynamic response characteristics of variable flow ducted rocket motor were analyzed by researching on the numerical simulations of the response processes of gas generator pressure,gas flow and thrust when regulating valves actuating in various velocities.The results indicated that valve velocity can significantly influence both the response velocity and the negative-regulation extent of parameters,and valve velocities either too low or too high are harmful for the performance enhancement of variable flow ducted rocket motor;in actual situations,it should be considered comprehensively to choose the optimal valve velocity. |
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| Keywords: | Ducted solid rocket motor Gas flow regulating Dynamic response characteristics Dynamic mesh |
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