blade incidence

简明释义

叶片安装角

英英释义

例句

1.The pilot was trained to recognize how blade incidence affects lift.

飞行员接受了如何识别叶片入射角对升力影响的训练。

2.Incorrect blade incidence can lead to increased drag on the aircraft.

不正确的叶片入射角会导致飞机的阻力增加。

3.During testing, we measured the blade incidence at various speeds.

在测试过程中，我们在不同速度下测量了叶片入射角。

4.The engineer adjusted the rotor to optimize the blade incidence for maximum efficiency.

工程师调整了转子以优化叶片入射角以达到最大效率。

5.Adjusting the blade incidence can significantly improve performance in turbulent conditions.

调整叶片入射角可以显著改善在湍流条件下的性能。

作文

In the field of aerodynamics, the term blade incidence refers to the angle at which a blade, such as that of a helicopter rotor or wind turbine, meets the oncoming airflow. This angle is crucial because it directly affects the efficiency and performance of the rotor system. When the blade incidence is optimized, it allows for better lift generation and energy conversion, which are essential for the operation of these machines. To understand the significance of blade incidence, one must first consider how blades interact with air. When a blade rotates, it creates a difference in air pressure above and below it, which generates lift. However, if the blade incidence is too high, the blade may stall, leading to a loss of lift and potential failure of the rotor system. Conversely, if the angle is too low, the blades will not generate sufficient lift, rendering the system inefficient. For example, in helicopters, pilots must constantly adjust the blade incidence through the collective and cyclic pitch controls to maintain optimal flight conditions. This adjustment helps to manage the aircraft’s altitude and direction, ensuring a safe and stable flight. Similarly, in wind turbines, the blade incidence is adjusted based on wind speed to maximize energy capture while minimizing structural stress on the blades. The relationship between blade incidence and performance can be illustrated with a simple analogy. Imagine a person holding a flat piece of cardboard in front of them while walking into the wind. If they hold the cardboard straight up, the wind pushes against it, making it difficult to move forward. However, if they tilt the cardboard slightly, they can cut through the wind more efficiently. This is akin to how adjusting the blade incidence can optimize the interaction between the blades and the airflow. In recent years, advancements in technology have allowed engineers to create more sophisticated systems for monitoring and adjusting blade incidence. For instance, some modern helicopters are equipped with sensors that provide real-time data on the angle of the blades, allowing for automatic adjustments during flight. This innovation enhances safety and performance, as pilots can rely on accurate readings rather than manual calculations. Furthermore, understanding blade incidence is not only vital for the design and operation of rotor systems but also for improving their environmental impact. By optimizing the blade incidence, engineers can design more efficient machines that consume less fuel and produce less noise, contributing to a sustainable future. In conclusion, the concept of blade incidence plays a pivotal role in the performance and efficiency of rotor systems in aviation and renewable energy. By mastering this concept, engineers and pilots can ensure safer flights and more effective energy production. As technology continues to evolve, the ability to precisely control and monitor blade incidence will become increasingly important, paving the way for innovations that enhance both performance and sustainability.

在空气动力学领域，术语blade incidence指的是刀片（例如直升机旋翼或风力涡轮机的刀片）与迎面而来的气流之间的角度。这个角度至关重要，因为它直接影响旋翼系统的效率和性能。当blade incidence优化时，它可以更好地生成升力和能量转换，这对这些机器的运行至关重要。要理解blade incidence的重要性，首先必须考虑刀片与空气的相互作用。当刀片旋转时，它会在其上方和下方产生气压差，从而产生升力。然而，如果blade incidence过高，刀片可能会失速，导致升力丧失和旋翼系统的潜在故障。相反，如果角度过低，刀片将无法产生足够的升力，从而使系统效率降低。例如，在直升机中，飞行员必须通过集体和循环桨距控制不断调整blade incidence以维持最佳飞行条件。这种调整有助于管理飞机的高度和方向，确保安全和稳定的飞行。类似地，在风力涡轮机中，blade incidence根据风速进行调整，以最大化能量捕获，同时最小化对刀片的结构应力。blade incidence与性能之间的关系可以用一个简单的类比来说明。想象一下，一个人手握一块平坦的纸板，迎着风走。如果他们把纸板竖起来，风会推着它，使得前进变得困难。然而，如果他们稍微倾斜纸板，就能更有效地切入风中。这就类似于如何通过调整blade incidence来优化刀片与气流之间的相互作用。近年来，技术的进步使工程师能够创建更复杂的系统来监测和调整blade incidence。例如，一些现代直升机配备了传感器，可以实时提供刀片角度的数据，从而在飞行过程中进行自动调整。这一创新增强了安全性和性能，因为飞行员可以依赖准确的读数，而不是手动计算。此外，理解blade incidence不仅对旋翼系统的设计和操作至关重要，而且对改善其环境影响也至关重要。通过优化blade incidence，工程师可以设计出更高效的机器，消耗更少的燃料并产生更少的噪音，为可持续未来做出贡献。总之，blade incidence的概念在航空和可再生能源的旋翼系统的性能和效率中发挥着关键作用。通过掌握这一概念，工程师和飞行员可以确保更安全的飞行和更有效的能源生产。随着技术的不断发展，精确控制和监测blade incidence的能力将变得越来越重要，为提高性能和可持续性铺平道路。