为解决高转速下动力与经济性能的下降，提出一种新的气动发动机曲轴连杆机构。
To solve the poor economic and dynamic performance at high engine speed, a new crank shaft mechanism of air powered engine was proposed.
提出一个评价气动发动机性能的新指标——气动发动机平均有效压力和缸内平均压力的比值。
A new index is proposed to evaluate performance of the air-powered engine-the ratio of the mean effective pressure and the average pressure in the engine cylinder.
从理论上建立了气动发动机理想的工作过程，从可用能量分析的角度探讨合理的膨胀初始压力和膨胀方式。
The ideal work process was established on theory. The reasonable initial pressure and the mode of expand were discussed by the analysis of available energy.
在能量转移系统中，应该采用容积膨胀减压方式减少减压环节的可用能损失；合理利用低温排气的冷量火用可以提高气动发动机能量转移系统的总能量效率。
The expander can reduce exergy loss in pressure reducing process, and the utilization of cryogenic exergy of air-powered engine exhaust is useful to improve the total energy efficiency.
F - 5是一架灵活、高度可控、可靠的超音速战斗机，它结合了先进的气动设计、发动机性能和低运营成本。
The F-5 is an agile, highly maneuverable, reliable supersonic fighter, combining advanced aerodynamic design, engine performance and low operating costs.
通过更加符合空气动力学的形状和一个曲线尾巴的飞机结构，这些发动机将使飞行更有效率，同时会将绝大部分的噪音传向空气上方。
With a more aerodynamic shape and framed by a curved tail plane, these engines would make for a more streamlined aircraft, as well as directing most of their noise upward.
但是看着在空气动力学、复合结构以及发动机技术上投入的大量研发，很容易让人忘记轮胎仍然是决定赛车性能最重要的因素。
But considering the development effort invested in aerodynamics, composite construction and engines it is easy to forget that tyres are still a race car's biggest single performance variable.
这些团队为轻比重的合成材料结构、耐热和耐应力的发动机材料、有助于实现其设想的空气动力学模型提出了不同的改进建议。
The teams recommended a variety of improvements in lightweight composite structures, heat- and stress-tolerant engine materials, and aerodynamic modeling that can help bring their ideas to reality.
伯尼尔说：“它就是一个所有事物的整合——汽车学、空气动力学、发动机、电子学，所有的部分。”
Says Bernier: "It is basically the whole thing together-the car, the aerodynamics, the engine, electronics, all the components."
尼科尔斯空降师的设计和制造航天气动控制阀，涡轮发动机飞机和衍生许多应用系统。
The Nichols Airborne Division designs and manufactures aerospace pneumatic valves to control numerous systems for turbine engine aircraft and derivative applications.
安装或修改飞机发动机，机械，液压，飞行控制，燃油和气动系统。
Install or modify aircraft engines and mechanical, hydraulic, flight control, fuel and pneumatic systems.
Astrium公司已经对Romeo火箭引擎进行了相应的改造工作，以驱动飞船爬升至太空，并且风道测试已经证实了气动外形。公司很快将会开始火箭发动机测试。
Astrium has done considerable work already on the Romeo rocket engine that would power the climb to space, and wind tunnel testing has proven the aerodynamic shape.
研究了利用压力位移气动传感方法和以扩散硅压力传感器组成测试系统对发动机喷油嘴偶件进行检测。
A measuring system is studied to test coupled pair in oil nozzle of engines by means of the pneumatic sensing method and the diffused silicon pressure sensor.
并将上述模型应用于JT9D发动机的气动热力参数的趋势分析。
The presented model has been used in the analysis of the JT9D—TRA E engine.
对某型涡喷发动机节流过程中压气机的气动不稳定问题进行了分析研究。
The compressor's aerodynamic instability problem of a certain turbojet engine in the process of the throttling operation was experimentally studied.
结果表明，这种形式的混合动力发动机能实现其设计目的，即回收利用柴油缸排气废热以提升气动缸性能。
Simulation results showed that the hybrid engine reclaimed the exhaust heat of diesel cylinder to improve the air-powered cylinder's performance.
所述方法在某型双转子涡喷发动机气动热力学非线性模型上对抗干扰性和目标跟踪进行了仿真验证。
Simulations on the nonlinear model of the twin spool turbojet engine aerothermodynamics are conducted to verify the disturbance rejection and tracking performance.
发动机噪声是汽车的主要噪声源，空气动力噪声是发动机噪声的组成部分之一。
Engine noise is the major noise source of automobile; air power noise is one of composition parts of engine noise.
它能够用来分析汽车在高速运动过程中发动机的噪声、轮胎噪声和空气动力学噪声。
Using acoustical holography, some interesting results are shown about the different noises of a high speed vehicle, such as engine noise, tire noise and aerodynamic noise.
发动机噪声是汽车噪声源的主要部分，它是由多种声源发出的噪声组合而成的，主要包括空气动力噪声和机械噪声和燃烧噪声。
Engine noise is the greatest part of the vehicle noise, it consists of many kinds of noise especially gas kinetic noise, mechanical noise and combustion noise.
此外气动力或发动机扰动也会造成弹体的附加运动。
Moreover, addition movement of the airframe can result from aerodynamic or propulsion noise .
此外气动力或发动机扰动也会造成弹体的附加运动。
Moreover, addition movement of the airframe can result from aerodynamic or propulsion noise.
建立了某涡扇发动机气动热力学模型和该型发动机综合电子调节器、主燃油泵调节器的实验室工作环境。
Thermodynamics model of some turbofan engine was established. Working condition of Engine Electronic Controller (EEC) and main fuel pump regulator in laboratory were set up.
结合工程实际，论述和分析了推力矢量发动机燃气舵气动特性的设计过程。
The aerodynamics design process of jet vane of the thrust-vector motor is discussed by combining the practical engineering.
针对具有侧向脉冲推力和气动力复合控制的动能拦截弹，需要解决姿控发动机的组合点火问题。
To the kinetic interceptor with lateral impulse thrust and aerodynamic force, it is required to solve the problem of combined fire of motors for attitude control.
为预测并联式气动-柴油混合动力发动机的性能，判断其可行性，建立了该混合动力发动机的工作过程理论模型并进行了数值仿真研究。
A theoretical model of parallel air-powered and diesel hybrid engine's working process was established to predict the performance and judge the feasibility of the hybrid engine.
对某涡喷发动机压气机的气动失稳过程进行了相关积分分析。
The process of loosing compressor aerodynamic stability in a turbojet engine was analyzed using the correlation integral method.
气动控制在低动压时其效率会有相当下降，为了使导弹在低动压时仍然具有一定的快速响应性，在导弹上安装脉冲姿控发动机参与姿态控制是一条可行的途径。
The effectiveness of aero control decreases as dynamic pressure decreases. Therefore impulse attitude control motor(ACM) is to be used to maintain fast response of missile in low dynamic pressure.
同时采用小扰动法推导了俯仰通道和滚动通道的简化模型，为空气动力和姿控发动机推力复合控制系统进行初步设计提供了依据。
What′s more, according to the method of little disturbance, the simplified model of pitching and rolling plane is derived, so preliminarily combined control system can be designed.
同时采用小扰动法推导了俯仰通道和滚动通道的简化模型，为空气动力和姿控发动机推力复合控制系统进行初步设计提供了依据。
What′s more, according to the method of little disturbance, the simplified model of pitching and rolling plane is derived, so preliminarily combined control system can be designed.
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