航天推进技术研究院主办
[1]马文友,张文胜,马元,等.基于控制规律的PATR发动机典型工况点速度与高度特性分析[J].火箭推进,2022,48(06):35-43.
MA Wenyou,ZHANG Wensheng,MA Yuan,et al.Analysis of velocity and altitude characteristics at typical operating conditions based on control law of PATR engine[J].Journal of Rocket Propulsion,2022,48(06):35-43.
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MA Wenyou,ZHANG Wensheng,MA Yuan,et al.Analysis of velocity and altitude characteristics at typical operating conditions based on control law of PATR engine[J].Journal of Rocket Propulsion,2022,48(06):35-43.
基于控制规律的PATR发动机典型工况点速度与高度特性分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
48
期数:
2022年06期
页码:
35-43
栏目:
目次
出版日期:
2022-12-25
- Title:
- Analysis of velocity and altitude characteristics at typical operating conditions based on control law of PATR engine
- 文章编号:
- 1672-9374(2022)06-0035-09
- Keywords:
- pre-cooling combined cycle engine PATR control law velocity characteristics altitude characteristic
- 分类号:
- V438.1
- 文献标志码:
- A
- 摘要:
- 为了研究预冷空气涡轮火箭发动机(PATR发动机)在最大推力状态下的部件匹配规律和系统性能特点,建立了PATR发动机的非线性变工况模型,确定了一种能充分发挥发动机推力性能和使其能安全稳定工作的控制规律,并研究了基于该控制规律的PATR发动机典型工况点的速度和高度特性。数值计算表明:保持氦涡轮转速和入口温度为最大允许值,确保主燃室余气系数不大于1.6和外涵冲压燃烧室余气系数不小于1.5,并使尾喷管喉部开度和空气压气机换算流量保持一定的关系时,PATR发动机处于最大推力状态,并能够在安全边界内工作 在控制规律的约束下,飞行条件的变化使得发动机工作状态点在确定的工作线上移动,决定发动机工作状态的重要参数按照一定的规律变化,因此控制量必须进行相应的调节以实现对发动机工作状态的控制。
- Abstract:
- In order to study the component matching rule and system performance characteristics of the pre-cooling air turbo rocket engine(PATR)under the maximum thrust condition, a nonlinear variable condition model of PATR engine was established, and a control law which can maximize the engines thrust performance and make it work safely and stably was determined.Also, the velocity and height characteristics of PATR engine at typical operating conditions based on the control law were studied.The numerical calculation shows that the PATR engine is in the maximum thrust state and can work within the safety boundary when the helium turbine speed and inlet temperature are the maximum allowable values, the excess air coefficient of main combustion chamber is not more than 1.6 and the excess air coefficient of external ramjet combustor is not less than 1.5, and the opening of nozzle throat is kept in a certain relationship with the conversion flow rate of air compressor conversion.Under the constraint of the control law, the change of flight conditions makes the engine operating state point move on the determined working line, and the important parameters affecting the engine operating state change according to a certain law.Therefore, the control variables must be adjusted accordingly to control the engine operating state.
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备注/Memo
收稿日期:2022-08-27 修回日期:2022-09-15
基金项目:国家自然科学基金(U1967203)
作者简介:马文友(1998—),男,硕士,研究领域为组合发动机。
通信作者:马元(1980—),男,博士,研究员,研究领域为组合发动机。
更新日期/Last Update:
1900-01-01