controllable pitch

简明释义

可调螺距

英英释义

例句

1.In marine engineering, controllable pitch propellers help optimize fuel efficiency during different sailing conditions.

在海洋工程中，可控螺距螺旋桨有助于在不同航行条件下优化燃油效率。

2.Using a controllable pitch rotor can significantly enhance the energy output of wind turbines.

使用可控螺距转子可以显著提高风力涡轮机的能量输出。

3.The yacht's controllable pitch system allows the captain to adjust the blade angle for improved maneuverability.

游艇的可控螺距系统允许船长调整叶片角度，以提高操控性。

4.The new model features a controllable pitch mechanism that improves the overall efficiency of the engine.

新型号配备了可控螺距机制，提高了发动机的整体效率。

5.The aircraft is equipped with a controllable pitch propeller, allowing for better performance at various speeds.

这架飞机配备了可控螺距螺旋桨，使其在不同速度下表现更佳。

作文

In the world of aviation and marine engineering, the term controllable pitch refers to a system that allows the angle of the blades of a propeller or rotor to be adjusted during operation. This innovative technology has revolutionized the way we think about propulsion in both aircraft and ships. By enabling the adjustment of the blade pitch, engineers can optimize performance for different phases of flight or navigation, leading to significant improvements in efficiency and control.One of the key advantages of a controllable pitch mechanism is its ability to enhance fuel efficiency. In traditional fixed-pitch systems, the angle of the blades remains constant, which can lead to suboptimal performance under varying conditions. For instance, during takeoff, an aircraft requires maximum thrust, but once it reaches cruising altitude, the optimal angle for fuel efficiency changes. A controllable pitch propeller can adjust the blade angle to provide the necessary thrust during takeoff and then shift to a more efficient angle during cruise, ultimately saving fuel and reducing operational costs.Moreover, the controllable pitch system also improves maneuverability. In maritime applications, ships with controllable pitch propellers can change their thrust direction by altering the blade angle, allowing for better handling in tight spaces or adverse weather conditions. This capability is particularly beneficial for vessels that require precise positioning, such as tugboats and research ships.In addition to fuel efficiency and maneuverability, safety is another critical aspect enhanced by controllable pitch systems. For instance, if an aircraft encounters turbulence, the ability to quickly adjust the propeller's pitch can help maintain stability and control. Similarly, in marine situations, a ship can respond more effectively to changing sea conditions, reducing the risk of capsizing or losing control.The implementation of controllable pitch technology requires sophisticated engineering and control systems. Modern aircraft typically utilize electronic systems that allow for real-time adjustments based on flight parameters. These systems are designed to monitor various factors such as speed, altitude, and engine performance, ensuring that the propeller operates at the optimal pitch at all times. In the maritime industry, hydraulic systems are often employed to facilitate quick and precise adjustments to the propeller pitch, providing immediate response capabilities.Despite the many benefits, there are challenges associated with controllable pitch systems. The complexity of the technology can lead to higher maintenance requirements and potential points of failure. Engineers must ensure that the systems are robust and reliable, capable of functioning effectively under all operational conditions. Additionally, the initial cost of implementing controllable pitch systems can be significant, which may deter some operators from adopting the technology.In conclusion, the advent of controllable pitch technology has had a profound impact on the fields of aviation and marine engineering. By allowing for dynamic adjustments to propeller and rotor blade angles, this innovation has improved fuel efficiency, maneuverability, and safety. As technology continues to advance, we can expect further enhancements in controllable pitch systems, making them even more integral to modern transportation solutions. The future of propulsion lies in our ability to adapt and optimize, and controllable pitch represents a significant step in that direction.

在航空和海洋工程的世界中，“可控螺距”一词指的是一种系统，允许在操作过程中调整螺旋桨或转子叶片的角度。这项创新技术彻底改变了我们对飞机和船舶推进的思考。通过使叶片的螺距可以调整，工程师可以针对不同的飞行或航行阶段优化性能，从而显著提高效率和控制能力。“可控螺距”机制的一个关键优势是其提高燃油效率的能力。在传统的固定螺距系统中，叶片的角度保持不变，这可能导致在不同条件下的性能不理想。例如，在起飞过程中，飞机需要最大推力，但一旦达到巡航高度，最佳燃油效率的角度会发生变化。“可控螺距”螺旋桨可以调整叶片角度，在起飞期间提供必要的推力，然后在巡航期间转向更有效的角度，从而最终节省燃料并降低运营成本。此外，“可控螺距”系统还提高了机动性。在海洋应用中，配备“可控螺距”螺旋桨的船只可以通过改变叶片角度来改变推力方向，从而在狭窄空间或恶劣天气条件下实现更好的操控。这种能力对于需要精确定位的船只尤为有利，例如拖船和研究船。除了燃油效率和机动性，安全性也是“可控螺距”系统增强的另一个关键方面。例如，如果飞机遇到颠簸，快速调整螺旋桨的螺距的能力可以帮助维持稳定性和控制。同样，在海洋情况下，船只可以更有效地应对变化的海况，降低倾覆或失去控制的风险。“可控螺距”技术的实施需要复杂的工程和控制系统。现代飞机通常利用电子系统，根据飞行参数进行实时调整。这些系统旨在监测速度、高度和发动机性能等各种因素，确保螺旋桨始终以最佳螺距运转。在海洋工业中，通常使用液压系统来促进对螺旋桨螺距的快速和精确调整，提供即时响应能力。尽管有许多好处，但与“可控螺距”系统相关的挑战也存在。技术的复杂性可能导致更高的维护要求和潜在的故障点。工程师必须确保这些系统稳健可靠，能够在所有操作条件下有效运行。此外，实施“可控螺距”系统的初始成本可能很高，这可能会阻止一些运营商采用该技术。总之，“可控螺距”技术的出现对航空和海洋工程领域产生了深远的影响。通过允许动态调整螺旋桨和转子叶片的角度，这一创新提高了燃油效率、机动性和安全性。随着技术的不断进步，我们可以期待“可控螺距”系统的进一步增强，使其在现代运输解决方案中变得更加不可或缺。推进的未来在于我们适应和优化的能力，而“可控螺距”代表了朝这一方向迈出的重要一步。