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power propulsion systems
相关语句
  电力推进系统
     AC power propulsion systems have the requirements of high efficiency, low harmonics and noise.
     交流电力推进系统的设计需满足高效率、低谐波和低噪声的要求。
短句来源
     A Comparison of SVPWM and SPWM in AC Ship Power Propulsion Systems
     舰船交流电力推进系统PWM方式的比较
短句来源
     The development of electric power propulsion systems has provided an ample scope for appearing the abilities of power batteries.
     电力推进系统的发展为动力电池提供了用武之地;
短句来源
     The excellent characterics of power batteries and the appearance of new battery systems will promote electric power propulsion systems going to new application fields also.
     动力电池优异本性和新电池体系的出现又促进了电力推进系统进入新的应用领域。
短句来源
  “power propulsion systems”译为未确定词的双语例句
     The result shows that compared with SPWM, SVPWM has the advantages of less harmonic distortion, lower switching losses and higher voltage availability ratio, which has provided a solution to the PWM generation of AC ship power propulsion systems.
     实验结果表明,与SPWM相比,SVPWM具有谐波畸变率低、开关损耗小以及电压利用率高等优点,为舰船交流变频推进系统的PWM方式提供了一种解决方案。
短句来源
     Progresses and events occured in 1988 are summarized in this article, covering missiles, space systems, space transportation systems, space operations and support, space power, propulsion systems, materials and space processing.
     内容涉及导弹、航天器、航天运输系统、推进系统、空间飞行和后勤支援、航天电源、空间材料加工和宇航材料等多个技术领域。
短句来源
  相似匹配句对
     On Power
     权力的概念、产生和制约
短句来源
     power;
     权力 ;
短句来源
     Survey of Power Battery for Torpedo Propulsion
     鱼雷动力电池研究进展
短句来源
     Electric Power Propulsion System and Power Batteries
     电力推进系统与动力电池
短句来源
     Board & Systems
     线路板与系统
短句来源
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Torpedo power propulsion system is one of the key systems in a torpedo. And the staring process of thermo power plant greatly depends on the starting safety of energy supply system. Based on principles of hydraulics and engineering thermodynamics, this paper studies the working process of the fuel tank which uses seawater directly to squeeze OTTO fuel, establishes the corresponding numerical model of the fuel tank pressure building up process, and calculates the law of the pressure and...

Torpedo power propulsion system is one of the key systems in a torpedo. And the staring process of thermo power plant greatly depends on the starting safety of energy supply system. Based on principles of hydraulics and engineering thermodynamics, this paper studies the working process of the fuel tank which uses seawater directly to squeeze OTTO fuel, establishes the corresponding numerical model of the fuel tank pressure building up process, and calculates the law of the pressure and time in the fuel tank. The results of the investigation show that it takes a period of time for the fuel tank to raise the pressure, and the pressure varies with time nonlinearly during the pressure building up process. The model successfully simulates the working condition of physical system. It can be used in the simulation of the accelerating process of the torpedo power propulsion system.

根据液压流体力学和工程热力学的基本原理,针对某型热动力鱼雷能供系统,对鱼雷舷外海水通过雷体直接进入燃料舱增压挤代燃料的工作过程进行了分析,建立了燃料舱增压过程的数学模型,并对燃料舱增压过程进行了仿真研究。

In order to investigate the characteristic of shaft torsional vibration when any single cylinder flames out and how that affects the main power propulsion system of a ship, the author puts forward a new way of calculation concerning the shaft torsional vibration when the mean indicated pressure of orther cylinders remain unchanged. A calculation of MANK9Z60/105E diesel engine is taken as an example in the course of analysis and comparision and some relevant suggestions are made on its management.

提出单缸熄火时其他缸平均指示压力保持不变的轴系扭振计算方法.以MANK9Z60/105E型柴油机的扭转振动计算为例,进行分析比较,结果与实船测量相符.并提出了相应的管理建议.

The experience of previous research on thermal power plants shows that most engine troubles take place during the startup. After power plant is ignited, it takes a period of time for the fuel to flow from the fuel tank to the combustion chamber. That means the fuel filling process is needed for the energy supply system which obtains the fuel by both squeezing and drawing. The fuel filling process determines the safety of the power plant and it directly affects the start acceleration process...

The experience of previous research on thermal power plants shows that most engine troubles take place during the startup. After power plant is ignited, it takes a period of time for the fuel to flow from the fuel tank to the combustion chamber. That means the fuel filling process is needed for the energy supply system which obtains the fuel by both squeezing and drawing. The fuel filling process determines the safety of the power plant and it directly affects the start acceleration process of the power plant. Therefore the study of fuel filling is very important to simulating the starting process of the thermal power propulsion system. In accordance with the basic principles of hydraulics & fundamentals of engineering thermodynamics, this paper studies the working process of the energy supply system, establishes the corresponding mathematical model of the filling process and calculates the filling process under a condition of power experiment. The results of the investigation show that the calculated filling time is close to the experiment data, and the established mathematical model is reasonable. The model successfully simulates the working condition of physical system. It can be used in the simulation of the start acceleration process of the thermal power propulsion system.

首次依据液压流体力学和工程热力学的基本原理,对能供系统工作过程进行了深入地研究,建立了充填过程数学模型,并以某型热动力装置功率试验状态进行了计算。研究结果表明:计算所获充填时间与试验数据相近,所建立的数学模型是合理的,较好地反映了实际物理系统的工作状态。该模型可用于动力推进系统启动加速过程仿真研究。

 
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