variable pitch propeller

简明释义

变距螺旋桨变距推进器可变螺距螺旋桨

英英释义

例句

1.The pilot adjusted the settings on the variable pitch propeller to optimize speed during the flight.

飞行员调整了可变螺距螺旋桨的设置，以优化飞行中的速度。

2.The aircraft is equipped with a variable pitch propeller which allows for better performance during takeoff.

这架飞机配备了一个可变螺距螺旋桨，可以在起飞时提供更好的性能。

3.The yacht's performance improved dramatically after installing a new variable pitch propeller.

在安装新的可变螺距螺旋桨后，游艇的性能显著提高。

4.One advantage of a variable pitch propeller is its ability to change blade angle for different flight conditions.

一个可变螺距螺旋桨的优点是能够根据不同的飞行条件改变叶片角度。

5.Using a variable pitch propeller can significantly improve fuel efficiency in marine applications.

在海洋应用中使用可变螺距螺旋桨可以显著提高燃油效率。

作文

The concept of a variable pitch propeller is crucial in the field of aerodynamics and marine engineering. A variable pitch propeller is designed to allow the angle of the blades to be adjusted during operation. This feature enables the propeller to optimize its performance under various conditions, enhancing efficiency and control. In aviation, for instance, a variable pitch propeller can adjust its blade angle to increase thrust during takeoff or to reduce drag during cruising, which significantly improves fuel efficiency and overall flight performance.In addition to aviation, variable pitch propellers are also widely used in marine vessels. Boats equipped with these propellers can change the pitch of the blades to adapt to different speeds and water conditions. For example, when a boat needs to accelerate quickly, the pitch can be adjusted to provide maximum thrust. Conversely, when cruising at a steady speed, the pitch can be altered to reduce resistance and save fuel. This adaptability makes variable pitch propellers an essential component in modern marine engineering.The mechanism behind a variable pitch propeller involves a complex system of hydraulics or mechanical linkages that allow for real-time adjustments. Pilots and captains can manipulate the pitch using controls in the cockpit or helm, providing instant feedback and responsiveness. This capability not only enhances performance but also contributes to safety by allowing for better maneuverability in challenging conditions.Moreover, the use of variable pitch propellers has advanced significantly with technology. Modern systems often incorporate electronic controls and sensors that monitor performance and automatically adjust the pitch for optimal operation. This innovation reduces the pilot's workload and ensures that the propeller operates efficiently at all times.The advantages of variable pitch propellers extend beyond performance. They also contribute to noise reduction, which is particularly important in both aviation and marine applications. By optimizing the blade angle, these propellers can operate more quietly, minimizing their environmental impact.However, it is essential to note that variable pitch propellers come with increased complexity and maintenance requirements compared to fixed-pitch propellers. The hydraulic systems and electronic components require regular inspection and servicing to ensure reliability. Despite these challenges, the benefits of improved performance, efficiency, and safety make variable pitch propellers a preferred choice for many aircraft and vessels.In conclusion, the variable pitch propeller represents a significant advancement in propulsion technology. Its ability to adjust blade angles dynamically allows for enhanced performance in both aviation and marine applications. As technology continues to evolve, we can expect further improvements in the design and functionality of variable pitch propellers, solidifying their role as a vital component in modern transportation systems.

可变螺距螺旋桨的概念在空气动力学和海洋工程领域至关重要。可变螺距螺旋桨的设计允许在操作过程中调整叶片的角度。这个特性使得螺旋桨能够在各种条件下优化其性能，提高效率和控制能力。例如，在航空中，可变螺距螺旋桨可以在起飞时调整叶片角度以增加推力，或在巡航时减少阻力，这显著提高了燃油效率和整体飞行性能。除了航空外，可变螺距螺旋桨在海洋船舶中也被广泛使用。配备这些螺旋桨的船只可以通过改变叶片的螺距来适应不同的速度和水域条件。例如，当船只需要快速加速时，可以调整螺距以提供最大推力。相反，当以稳定速度巡航时，可以改变螺距以减少阻力并节省燃料。这种适应性使得可变螺距螺旋桨成为现代海洋工程中的重要组成部分。可变螺距螺旋桨的机制涉及复杂的液压或机械联动系统，允许实时调整。飞行员和船长可以使用驾驶舱或舵上的控制装置来操纵螺距，提供即时反馈和响应能力。这种能力不仅增强了性能，还通过提高在困难条件下的机动性来提高安全性。此外，随着技术的发展，可变螺距螺旋桨的使用也显著提高。现代系统通常结合电子控制和传感器，监测性能并自动调整螺距以实现最佳操作。这一创新减少了飞行员的工作负担，并确保螺旋桨在任何时候都能高效运行。可变螺距螺旋桨的优势不仅体现在性能上。它们还对噪音减少做出了贡献，这在航空和海洋应用中尤为重要。通过优化叶片角度，这些螺旋桨可以更安静地运行，最小化其对环境的影响。然而，需要注意的是，与固定螺距螺旋桨相比，可变螺距螺旋桨具有更高的复杂性和维护要求。液压系统和电子组件需要定期检查和维护，以确保其可靠性。尽管面临这些挑战，但改进的性能、效率和安全性使得可变螺距螺旋桨成为许多飞机和船只的首选。总之，可变螺距螺旋桨代表了推进技术的重要进步。其动态调整叶片角度的能力使得在航空和海洋应用中性能得到增强。随着技术的不断发展，我们可以期待可变螺距螺旋桨的设计和功能进一步改善，巩固其在现代交通系统中的重要组成部分。