propeller hub

简明释义

推进器毂

英英释义

例句

1.During the maintenance check, we found a crack in the propeller hub that needed immediate attention.

在维护检查中，我们发现螺旋桨中心有一个裂缝，需要立即处理。

2.The engineer inspected the propeller hub for any signs of wear and tear.

工程师检查了螺旋桨中心是否有磨损的迹象。

3.He replaced the old propeller hub with a new one to improve efficiency.

他用一个新的螺旋桨中心替换了旧的，以提高效率。

4.The propeller hub's alignment is crucial for optimal performance of the aircraft.

对于飞机的最佳性能，螺旋桨中心的对齐至关重要。

5.The design of the propeller hub affects the overall aerodynamics of the vessel.

螺旋桨中心的设计会影响船只的整体气动特性。

作文

The world of aviation is filled with intricate components that work together to ensure the safe and efficient operation of aircraft. One such essential part is the propeller hub, which plays a critical role in the functionality of propeller-driven aircraft. Understanding the significance of the propeller hub can enhance our appreciation for the engineering marvels that allow planes to soar through the skies.A propeller hub is the central part of a propeller where the blades are attached. This component serves as the main connection point between the engine and the blades, transmitting the power generated by the engine to the blades, enabling them to rotate and create thrust. The design of the propeller hub must be robust and aerodynamically efficient to withstand the forces exerted during flight.In addition to its structural importance, the propeller hub also houses various mechanisms that control the pitch of the propeller blades. By adjusting the angle of the blades, pilots can optimize performance for different phases of flight, such as takeoff, cruising, and landing. This ability to change blade pitch is crucial for maintaining efficiency and ensuring that the aircraft operates smoothly under varying conditions.Moreover, the propeller hub is designed to minimize drag, which is essential for achieving higher speeds and better fuel efficiency. Engineers meticulously calculate the dimensions and shape of the propeller hub to ensure that it complements the overall aerodynamic profile of the aircraft. Any inefficiencies in this component can lead to increased fuel consumption and reduced performance, highlighting the importance of precision in its design.The materials used in constructing a propeller hub are also significant. It must be made from durable materials that can endure the stresses of flight while remaining lightweight. Advances in technology have led to the use of composite materials, which offer an excellent strength-to-weight ratio, further enhancing the performance of the propeller system.In summary, the propeller hub is a vital component in the realm of aviation, serving as the heart of the propeller system. Its role in connecting the engine to the blades, controlling pitch, and minimizing drag cannot be overstated. As we continue to explore the advancements in aviation technology, understanding components like the propeller hub allows us to appreciate the complexities involved in making air travel safe and efficient. Every time we board a plane, we should remember the intricate systems at work behind the scenes, with the propeller hub being one of the unsung heroes of flight.

航空世界充满了复杂的组件，这些组件共同工作，以确保飞机的安全和高效运行。其中一个重要的部分是螺旋桨中心，它在螺旋桨驱动飞机的功能中发挥着关键作用。理解螺旋桨中心的重要性可以增强我们对让飞机翱翔天空的工程奇迹的欣赏。螺旋桨中心是螺旋桨的中心部分，叶片连接于此。这个组件作为发动机与叶片之间的主要连接点，将发动机产生的动力传递给叶片，使其旋转并产生推力。螺旋桨中心的设计必须坚固且具有空气动力学效率，以承受飞行过程中施加的力量。除了结构上的重要性，螺旋桨中心还包含各种机制，用于控制螺旋桨叶片的俯仰角。通过调整叶片的角度，飞行员可以优化不同飞行阶段（例如起飞、巡航和着陆）的性能。这种改变叶片俯仰角的能力对于维持效率和确保飞机在不同条件下平稳运行至关重要。此外，螺旋桨中心的设计旨在最小化阻力，这是实现更高速度和更好燃油效率的关键。工程师们仔细计算螺旋桨中心的尺寸和形状，以确保其与飞机整体空气动力学轮廓相辅相成。该组件中的任何低效都可能导致燃油消耗增加和性能下降，这突显了其设计精确性的必要性。构建螺旋桨中心所使用的材料也很重要。它必须由耐用材料制成，能够承受飞行的压力，同时保持轻便。技术的进步使复合材料的使用成为可能，这些材料提供了优良的强度与重量比，进一步增强了螺旋桨系统的性能。总之，螺旋桨中心在航空领域中是一个至关重要的组件，作为螺旋桨系统的核心。它在连接发动机与叶片、控制俯仰角和最小化阻力方面的作用不可低估。随着我们继续探索航空技术的进步，理解像螺旋桨中心这样的组件使我们能够欣赏到在确保航空旅行安全高效方面所涉及的复杂性。每次我们登上飞机时，都应记住在幕后的复杂系统，其中螺旋桨中心是飞行中不为人知的英雄之一。