| 用随机仿真方法验证液体火箭发动机静特性数学模型 |
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| 引用本文： | 沈赤兵,吴建军,王克昌,陈启智.用随机仿真方法验证液体火箭发动机静特性数学模型[J].国防科技大学学报,1998,20(4):9-14. |
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| 作者姓名： | 沈赤兵 吴建军 王克昌 陈启智 |
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| 作者单位： | 国防科技大学航天技术系 |
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| 摘 要： | 以某泵压式液体火箭发动机为研究对象，用试车数据对发动机静特性数学模型进行了验证，在验证模型时既考虑了外部干扰因素的实际测量误差范围和内部干扰因素的实际变化范围，又考虑了发动机参数实测量的误差范围，并且使用了随机仿真的方法。验证结果表明，发动机静特性的非线性数学模型是足够准确的，所用的计算方法是合理的。
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| 关 键 词： | 液体火箭发动机，静特性，非线性模型，模型验证，干扰因素，随机仿真 |
| 收稿时间： | 1997/12/7 0:00:00 |
Verifying the Mathematical Model of State Characteristics of Liquid Rocket Engine by Using the Stochastic Simulation Method |
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| Shen Chibing,Wu Jianjun,Wang Kechang and Chen Qizhi.Verifying the Mathematical Model of State Characteristics of Liquid Rocket Engine by Using the Stochastic Simulation Method[J].Journal of National University of Defense Technology,1998,20(4):9-14. |
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| Authors: | Shen Chibing Wu Jianjun Wang Kechang and Chen Qizhi |
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| Affiliation: | Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073;Department of Aerospace Technology, NUDT, Changsha, 410073 |
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| Abstract: | A pump-fed liquid rocket engine (LRE) is used as an object of study in this paper. By applying the stochastic simulation method, test data are used to verify the mathematical model of static characteristics of LRE. Not only are the actual measurement error range of the external interfering factors and the actual variation range of the internal interfering factors considered, but also the actual measurement error range of the engine parameters is considered during the model verification. The results of the model verification show that the mathematical model of static characteristics of LRE is accurate and the calculation methods employed are proper. |
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| Keywords: | liquid rocket engine static characteristics nonlinear model model verification interfering factors stochastic simulation |
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