A control scheme is proposed, in which liquid engine of constant thrust and impulse thruster are chosen to achieve hover task.
提出一种近月面定点悬停的控制方案，选用常推力液体发动机和脉冲式发动机实现悬停任务。
When calculations are compared with the performance parameters of solid engine and liquid engine, it is concluded that PDE has very superior performance. It is necessary to continue research on PDE.
最后将算例的计算结果与常规液体火箭发动机及固体火箭发动机的相关参数作了对比，脉冲爆震发动机具有更优越的整体性能，因此，有必要对它进行更进一步的研究。
One of the four-engine cutoff, or ECO, sensors inside the liquid hydrogen section of the tank gave a false reading.
四个引擎中的一个关车(eco)，燃料箱中液氢燃料区的一个传感器给出了错误的读数。
For example, a steam engine can use coal, newspaper or wood for the fuel, while an internal combustion engine needs pure, high-quality liquid or gaseous fuel.
例如，蒸汽发动机可以用煤，报纸或木头作为燃料，而内燃机需要用纯的，高质量液体燃料或气体燃料。
The Common Extensible Cryogenic Engine being developed for NASA burns a mixture of liquid oxygen (-297 degrees Fahrenheit) and liquid hydrogen (-423 degrees).
这个正为NASA研发中的“通用可扩展超低温引擎”以液态氧(- 297华氏度)与液态氢(- 423华氏度)的混合物为燃料。
The idea for the chemical engine is similar to that used on the space shuttle, liquid oxygen and liquid hydrogen.
化学发动机跟航天飞机使用的发动机类似，都是用液氧和液氢作燃料。
The initial thrust is provided by the nine-engine cluster, fuelled by kerosene and liquid oxygen.
初始推进力由一拥有九个引擎的引擎组提供，使用煤油和液氧作为燃料。
The propellant feature of burning behavior and engine in hybrid engine, the differences to liquid and solid engine and the difficulties of technology in development were analyzed.
分析了固液发动机推进剂的燃烧特性和发动机性能特性、与液体和固体火箭发动机的不同，以及研制的技术难度等。
Mark Hempsell, future programs director at Reaction Engines Ltd, told CNN: 'The engine starts by burning hydrogen with air and finishes up burning hydrogen with liquid oxygen like a shuttle engine.'
ReactionEnginesLtd的未来计划总监马克·汉普塞尔向CNN透露，天龙的引擎在开始时将氢与空气混合燃烧，然后会像航天飞机一样，将氢与液氧混合燃烧。
The heavy lifting is done by the nine-engine cluster, fuelled by kerosene and liquid oxygen.
采用煤油和液体氧为燃料的9台捆绑式发动机负责提升重物。
Flow in injector passages of a variable thrust liquid propellant rocket engine was studied.
本文对变推力液体火箭发动机喷注器通道内介质流动进行求解。
A micro computer system is introduced for condition monitoring and fault diagnosis in the ground testing of a throttling liquid rocket engine.
本文介绍了一种用于变推力液体火箭发动机地面试车的工况监测和故障诊断微机系统。
The design and realization of a variable thrust liquid rocket engine control system is present in this paper.
本文讨论了某型变推力液体火箭发动机数字控制系统的设计和实现。
The complex flow was simulated with sequential and parallel SIMPLE algorithm in the combustion chamber of liquid rocket engine.
用串行和并行SIMPLE算法对液体火箭发动机燃烧室内的复杂流动进行了数值模拟。
This paper presents the development of the liquid propellant rocket engine technology from the viewpoint of combustion chamber pressure, thrust level and power cycle.
本文从燃烧室压力、系统工作循环方式以及最大推力三个方面叙述了世界各国液体火箭发动机的技术水平。
The detonation wave ignition technique is suitable to synchronization ignition of multi-chamber liquid rocket engine.
爆震波多管点火技术适合用于多燃烧室液体火箭发动机的同步点火。
The hot flow fields in liquid rocket engine combustion chamber with and without baffles are simulated numerically.
用数值方法模拟了液体火箭发动机燃烧室内有无隔板两种情况的热态解。
Rotor dynamic is one of the most complicated problems in development of LOX turbopump of liquid rocket engine.
转子动力学问题是液体火箭发动机研制中最复杂的问题之一。
A variable structure control system for the start up process of staged combustion cycle liquid rocket engine is presented in this paper.
针对分级燃烧循环液体火箭发动机启动过程的特点，提出了一种变结构控制系统。
The nonlinear high frequency combustion instability process in the liquid rocket engine is simulated with the method of nonlinear dynamics.
采用非线性动力学方法对液体火箭发动机非线性高频燃烧不稳定工作过程进行了研究。
This article has designed the dynamic thrust test-bench for low-thrust liquid rocket engine within 100n.
本文设计了100n范围内小推力液体火箭发动机动态推力测试台架。
The hydrodynamic design of advanced liquid rocket engine high performance inducers is a challenging technology.
先进液体火箭发动机高性能螺旋轮的流体动力设计是个关键技术。
Turbopump is an important part in liquid rocket engine.
涡轮泵是液体火箭发动机的重要组成部份。
Attributing to the large flow rate, high efficiency level reaction turbine is adoptive in staged combustion cycle liquid rocket engine.
基于闭式补燃循环液体火箭发动机流量大的特点，欲设计效率水平高的航天反力式涡轮。
Finally, based on the model data, the neural networks are applied to recognize several fault patterns of the liquid rocket engine.
最后，基于模型数据，应用神经网络识别了液体火箭发动机的几种故障模式。
Comes to the conclusion that the hybrid bearing can be used to the liquid rocket engine turbopump, and then puts forward the key technique to be solved.
得出了液体动静压滑动轴承可用于液体火箭发动机涡轮泵转子支撑的结论，同时提出了待解决的关键技术。
A general method for the cycle power balance calculation of the liquid rocket engine is proposed in this paper.
本文提出了一种新的液体火箭发动机功率平衡通用计算方法。
A pulse width sampled-data control system for a variable thrust liquid rocket engine is studied both theoretically and experimentally.
本文对变推力液体火箭发动机的脉宽采样数字控制系统进行了理论分析和实验研究。
A pulse width sampled-data control system for a variable thrust liquid rocket engine is studied both theoretically and experimentally.
本文对变推力液体火箭发动机的脉宽采样数字控制系统进行了理论分析和实验研究。
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