rotor blade

简明释义

动叶片

英英释义

例句

1.The helicopter's rotor blade was damaged during the storm.

直升机的旋翼叶片在暴风雨中受损。

2.The wind turbine's rotor blade spins rapidly to generate power.

风力涡轮机的旋翼叶片快速旋转以产生电力。

3.A broken rotor blade can lead to serious flight safety issues.

损坏的旋翼叶片可能导致严重的飞行安全问题。

4.Engineers are testing the new rotor blade design for better efficiency.

工程师们正在测试新的旋翼叶片设计，以提高效率。

5.The maintenance crew inspected each rotor blade thoroughly.

维修人员彻底检查了每个旋翼叶片。

作文

The efficiency and functionality of modern aircraft largely depend on the design and performance of their components. One critical component in helicopters and some types of drones is the rotor blade, which plays a pivotal role in generating lift and enabling flight. Understanding the mechanics behind rotor blades can provide insights into how these machines operate and the principles of aerodynamics that govern them.A rotor blade is essentially a rotating wing that is used to create lift for helicopters and other rotary-wing aircraft. Unlike fixed-wing aircraft, which rely on forward motion to generate lift through their wings, helicopters can hover in place, ascend, or descend vertically due to the unique design of their rotor blades. Each rotor blade is shaped like an airfoil, which means its cross-section is designed to manipulate airflow effectively.When a helicopter's engine powers the rotor blades, they spin around a central hub. As they rotate, air flows over and under the blades, creating a difference in air pressure. This difference results in lift, allowing the helicopter to rise off the ground. The angle at which the rotor blades are set, known as the pitch, can be adjusted to control the amount of lift produced. Pilots can increase the pitch to gain more lift when ascending or decrease it to descend.The materials used in the construction of rotor blades are also crucial for their performance. Traditionally made from wood, modern rotor blades are often crafted from composite materials such as fiberglass or carbon fiber. These materials are lightweight yet strong, allowing for efficient operation while minimizing weight. Additionally, the design of rotor blades has evolved to include features that reduce noise and improve fuel efficiency.Another important aspect of rotor blades is their maintenance. Due to the high-stress environment in which they operate, rotor blades are subject to wear and tear. Regular inspections are necessary to ensure their integrity, as any damage can compromise the safety and performance of the aircraft. Pilots and maintenance crews must be vigilant in checking for signs of fatigue or damage, such as cracks or delamination in the materials.In conclusion, the rotor blade is a vital component of helicopters and rotary-wing aircraft, essential for creating the lift necessary for flight. Its design, materials, and maintenance play significant roles in ensuring the aircraft's performance and safety. As technology advances, we can expect further innovations in rotor blade design that will enhance the capabilities and efficiency of aerial vehicles, paving the way for new applications in various fields, including transportation, rescue operations, and even urban air mobility. Understanding the intricacies of rotor blades not only highlights their importance in aviation but also reflects the ongoing evolution of aerospace engineering.

现代飞机的效率和功能在很大程度上依赖于其组件的设计和性能。直升机和某些类型的无人机中一个关键组件是旋翼叶片，它在产生升力和实现飞行方面起着至关重要的作用。理解旋翼叶片背后的机械原理可以提供对这些机器如何运作以及支配它们的空气动力学原理的深入了解。旋翼叶片本质上是一个旋转的翼，用于为直升机和其他旋翼飞行器创造升力。与固定翼飞机依靠前进运动通过其机翼产生升力不同，直升机可以由于旋翼叶片的独特设计悬停、上升或垂直下降。每个旋翼叶片的形状类似于气动翼，这意味着其横截面被设计成有效地操控气流。当直升机的发动机驱动旋翼叶片时，它们围绕中心轴旋转。当它们旋转时，空气在叶片的上方和下方流动，产生气压差。这种差异导致升力，使直升机能够离开地面。设置旋翼叶片的角度，称为俯仰角，可以调整以控制产生的升力大小。飞行员可以增加俯仰角以在上升时获得更多升力，或减少俯仰角以下降。旋翼叶片的制造材料对于其性能也至关重要。传统上由木材制成，现代的旋翼叶片通常由复合材料如玻璃纤维或碳纤维制成。这些材料轻便而坚固，允许高效操作，同时最小化重量。此外，旋翼叶片的设计已经发展出减少噪音和提高燃油效率的特征。旋翼叶片的维护也是一个重要方面。由于它们所处的高压环境，旋翼叶片容易磨损。定期检查是必要的，以确保其完整性，因为任何损坏都可能危及飞机的安全和性能。飞行员和维修人员必须警惕检查疲劳或损坏的迹象，例如材料中的裂纹或分层。总之，旋翼叶片是直升机和旋翼飞行器的重要组成部分，对于创造飞行所需的升力至关重要。它的设计、材料和维护在确保飞机性能和安全方面发挥着重要作用。随着技术的进步，我们可以期待旋翼叶片设计的进一步创新，增强航空器的能力和效率，为运输、救援行动甚至城市空中出行等各个领域的新应用铺平道路。理解旋翼叶片的复杂性不仅突显了它们在航空中的重要性，还反映了航空航天工程的持续演变。