| 双组元落压推进系统混合比控制方法 |
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| 引用本文： | 杨俊,杨福树,贾柯.双组元落压推进系统混合比控制方法[J].上海航天,2019,36(6):76-82. |
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| 作者姓名： | 杨俊 杨福树 贾柯 |
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| 作者单位： | 上海空间推进研究所，上海 201112;上海空间发动机工程研究中心，上海 201112,上海空间推进研究所，上海 201112;上海空间发动机工程研究中心，上海 201112,上海空间推进研究所，上海 201112;上海空间发动机工程研究中心，上海 201112 |
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| 摘 要： | 双组元落压推进系统以其简单、高可靠、高比冲的特点在空间飞行器上逐渐得到应用。由于双组元落压推进系统压力和推进剂流量存在明显的变化,其混合比控制方法与双组元恒压推进系统存在显著的区别。本文分析了双组元落压推进系统混合比的影响因素,构建了混合比计算模型,提出了基于初始贮箱压力控制混合比的方法,并通过推进系统热试车验证了混合比控制方法的有效性。试验结果表明:通过控制初始贮箱压差不超过0.05 MPa,可将系统混合比偏差控制在不大于1.8%的指标范围内。
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| 关 键 词： | 双组元 落压 推进系统 混合比 |
| 收稿时间： | 2019/7/10 0:00:00 |
| 修稿时间： | 2019/9/18 0:00:00 |
Method of Mixture Ratio Control of Bipropellant Blowdown Propulsion System |
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| YANG Jun,YANG Fushu and JIA Ke.Method of Mixture Ratio Control of Bipropellant Blowdown Propulsion System[J].Aerospace Shanghai,2019,36(6):76-82. |
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| Authors: | YANG Jun YANG Fushu and JIA Ke |
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| Institution: | Shanghai Institute of Space Propulsion, Shanghai 201112, China;Shanghai Engineering Research Center of Space Engine, Shanghai 201112, China,Shanghai Institute of Space Propulsion, Shanghai 201112, China;Shanghai Engineering Research Center of Space Engine, Shanghai 201112, China and Shanghai Institute of Space Propulsion, Shanghai 201112, China;Shanghai Engineering Research Center of Space Engine, Shanghai 201112, China |
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| Abstract: | Due to its characteristics of simplicity, high reliability, and high specific impulse, the bipropellant blowdown propulsion system is gradually used in space vehicles. Since the pressure and propellant flow of the bipropellant blowdown propulsion system have obvious changes, a mixture ratio calculation model is established, and the mixture ratio control method based on the initial tank pressure is proposed. The effectiveness of the mixture ratio control method is verified by the hot commissioning of the propulsion system. The test results show that the mixture ratio deviation can be controlled within 1.8% by controlling the difference of the initial tank pressure to be no more than 0.05 MPa. |
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| Keywords: | bipropellant blowdown propulsion system mixture ratio |
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