propulsive efficiency

简明释义

推进效率

英英释义

例句

1.The propulsive efficiency of a rocket is crucial for maximizing its payload capacity.

火箭的推进效率对最大化其有效载荷能力至关重要。

2.Higher propulsive efficiency can lead to lower fuel consumption in ships.

更高的推进效率可以导致船舶燃料消耗降低。

3.The new jet engine design aims to improve propulsive efficiency by reducing drag.

新的喷气发动机设计旨在通过减少阻力来提高推进效率。

4.Engineers are focused on enhancing the propulsive efficiency of hybrid vehicles.

工程师专注于提高混合动力汽车的推进效率。

5.Researchers are studying the propulsive efficiency of electric motors for use in drones.

研究人员正在研究电动机在无人机中使用的推进效率。

作文

In the realm of aerospace engineering, the concept of propulsive efficiency plays a crucial role in determining the performance and effectiveness of aircraft and spacecraft. Propulsive efficiency refers to the measure of how effectively an engine converts fuel energy into thrust, which is essential for overcoming drag and achieving flight. The higher the propulsive efficiency, the more thrust is produced per unit of fuel consumed, leading to better fuel economy and reduced operational costs.To understand propulsive efficiency, one must first grasp the principles of propulsion. When an aircraft moves through the air, it experiences resistance known as drag. To counteract this force, engines generate thrust by expelling mass at high velocity. The relationship between the amount of fuel used and the thrust produced defines the propulsive efficiency. For instance, a jet engine that produces a significant amount of thrust while consuming less fuel is considered to have high propulsive efficiency.Various factors influence propulsive efficiency, including the design of the engine, the type of fuel used, and the aerodynamics of the aircraft. Modern advancements in technology have led to the development of engines that optimize these factors, resulting in improved propulsive efficiency. For example, turbofan engines, commonly used in commercial aviation, are designed to provide a balance between high thrust and low fuel consumption, thus maximizing propulsive efficiency.The significance of propulsive efficiency extends beyond just fuel savings; it also impacts environmental sustainability. As the aviation industry faces increasing scrutiny over its carbon footprint, enhancing propulsive efficiency is vital for reducing greenhouse gas emissions. By improving propulsive efficiency, airlines can minimize their environmental impact while maintaining operational efficiency.Moreover, propulsive efficiency is not only relevant in aviation but also in the design of rockets and spacecraft. In space travel, where fuel is limited and weight is a critical factor, maximizing propulsive efficiency is essential for successful missions. Engineers strive to develop propulsion systems that provide the necessary thrust with minimal fuel expenditure, enabling spacecraft to reach distant destinations without carrying excessive fuel loads.In conclusion, propulsive efficiency is a fundamental concept in the field of propulsion that directly affects the performance, cost-effectiveness, and environmental impact of aircraft and spacecraft. As technology continues to advance, the focus on enhancing propulsive efficiency will remain a priority for engineers and designers. By understanding and optimizing this critical aspect of propulsion, the aerospace industry can achieve greater heights in both innovation and sustainability.

在航空航天工程领域，推进效率的概念在决定飞机和航天器的性能和有效性方面发挥着至关重要的作用。推进效率是指发动机将燃料能量转化为推力的有效程度，这对于克服阻力和实现飞行至关重要。推进效率越高，每单位消耗的燃料产生的推力就越多，从而提高燃油经济性并降低运营成本。要理解推进效率，首先必须掌握推进的原理。当飞机在空气中移动时，会遇到称为阻力的阻碍力。为了抵消这种力量，发动机通过以高速度排出质量来产生推力。燃料使用量与产生的推力之间的关系定义了推进效率。例如，一台在消耗较少燃料的情况下产生大量推力的喷气发动机被认为具有高推进效率。多种因素影响推进效率，包括发动机的设计、所用燃料的类型以及飞机的空气动力学。现代技术的进步导致了优化这些因素的发动机的发展，从而改善了推进效率。例如，涡扇发动机通常用于商业航空，旨在提供高推力和低燃料消耗之间的平衡，从而最大化推进效率。推进效率的重要性不仅体现在燃料节省上；它还影响环境可持续性。随着航空业面临对其碳足迹的日益审视，提高推进效率对减少温室气体排放至关重要。通过提高推进效率，航空公司可以在保持运营效率的同时最小化其环境影响。此外，推进效率不仅在航空领域相关，在火箭和航天器的设计中也同样重要。在太空旅行中，燃料有限且重量是一个关键因素，因此最大化推进效率对于成功的任务至关重要。工程师努力开发提供必要推力而最小化燃料消耗的推进系统，使航天器能够在不携带过多燃料负载的情况下到达遥远的目的地。总之，推进效率是推进领域的一个基本概念，直接影响飞机和航天器的性能、成本效益和环境影响。随着技术的不断进步，提高推进效率将始终是工程师和设计师的优先事项。通过理解和优化这一推进的关键方面，航空航天行业可以在创新和可持续性方面达到更高的高度。