controllable reversible pitch

简明释义

可变逆距螺旋桨

英英释义

例句

1.The implementation of controllable reversible pitch technology in wind turbines improves energy efficiency.

在风力涡轮机中实施可控可逆的俯仰技术提高了能源效率。

2.The new drone features a controllable reversible pitch system, allowing it to adjust its angle for better stability during flight.

这款新无人机配备了可控可逆的俯仰系统，使其能够调整角度以提高飞行稳定性。

3.In marine engineering, ships with controllable reversible pitch propellers can change direction and speed more efficiently.

在海洋工程中，配备可控可逆的俯仰螺旋桨的船只可以更有效地改变方向和速度。

4.Using a controllable reversible pitch rotor allows the helicopter to perform advanced aerial maneuvers.

使用可控可逆的俯仰旋翼使直升机能够执行高级空中机动。

5.The aircraft's controllable reversible pitch mechanism enhances maneuverability during takeoff and landing.

飞机的可控可逆的俯仰机制在起飞和着陆时增强了机动性。

作文

In the realm of aerospace engineering, one of the most fascinating concepts is the idea of a controllable reversible pitch. This term refers to a mechanism that allows for the adjustment of the angle of an aircraft's propeller blades in a way that can be reversed, enabling the pilot to control the thrust direction effectively. The significance of this technology cannot be overstated, as it plays a crucial role in enhancing the performance and maneuverability of aircraft. The controllable reversible pitch system works by allowing the pilot to change the pitch angle of the propeller blades while the engine is running. By increasing the pitch, the blades can generate more thrust for takeoff or climbing, while decreasing the pitch allows for more efficient cruising at higher altitudes. Moreover, the ability to reverse the pitch is particularly beneficial during landing, as it enables the aircraft to decelerate rapidly, reducing the landing distance significantly. Historically, the development of controllable reversible pitch systems has evolved from simple fixed-pitch propellers to complex mechanisms that offer pilots greater flexibility and control. Early aircraft relied on fixed-pitch propellers, which limited their performance capabilities. However, as aviation technology advanced, engineers recognized the need for a more sophisticated approach to propeller design. This led to the introduction of variable-pitch propellers, which allowed for adjustments in pitch but did not offer the capability to reverse it. The breakthrough came with the invention of the controllable reversible pitch propeller, which provided pilots with unprecedented control over the aircraft's performance. This innovation made it possible to optimize thrust for various phases of flight, such as takeoff, cruising, and landing. Additionally, it enhanced safety by allowing for improved control in emergency situations. For instance, if an aircraft experiences an engine failure, the pilot can quickly adjust the pitch to maximize lift and control descent. In modern aviation, controllable reversible pitch systems are commonly found in both commercial and military aircraft. They are particularly vital in helicopters, where precise control over lift and thrust is essential for safe operation. Helicopter pilots rely on these systems to perform complex maneuvers, such as hovering and quick directional changes, which would be impossible without the ability to control the pitch of the rotor blades. Moreover, the integration of advanced technology, such as fly-by-wire systems, has further enhanced the functionality of controllable reversible pitch mechanisms. These systems utilize electronic controls to manage the pitch adjustments, allowing for even more precise and responsive handling. As a result, pilots can focus on their primary task of flying the aircraft, while the system takes care of optimizing performance based on real-time data. In conclusion, the concept of controllable reversible pitch is a testament to the ingenuity of aerospace engineering. It represents a significant advancement in aircraft design, providing pilots with the tools they need to operate safely and efficiently. As technology continues to evolve, we can expect further enhancements to this critical system, ultimately leading to safer and more capable aircraft in the skies.

在航空航天工程领域，最引人入胜的概念之一是“可控可逆桨距”的想法。这个术语指的是一种机制，它允许调整飞机螺旋桨叶片的角度，以便有效地控制推力方向。该技术的重要性不容小觑，因为它在增强飞机性能和机动性方面发挥了至关重要的作用。“可控可逆桨距”系统通过允许飞行员在发动机运行时改变螺旋桨叶片的桨距角来工作。通过增加桨距，叶片可以在起飞或爬升时产生更多的推力，而减少桨距则允许在较高高度下更有效地巡航。此外，反向桨距的能力在着陆时尤其有利，因为它使飞机能够迅速减速，从而显著缩短着陆距离。从历史上看，“可控可逆桨距”系统的发展已经从简单的固定桨距螺旋桨演变为提供飞行员更大灵活性和控制的复杂机制。早期飞机依赖于固定桨距螺旋桨，这限制了其性能能力。然而，随着航空技术的进步，工程师意识到需要对螺旋桨设计采取更复杂的方法。这导致了可变桨距螺旋桨的引入，虽然允许桨距的调整，但并未提供反向的能力。突破性的进展出现在“可控可逆桨距”螺旋桨的发明，它为飞行员提供了前所未有的飞机性能控制。这一创新使得在飞行的不同阶段（如起飞、巡航和着陆）优化推力成为可能。此外，它通过提高紧急情况下的控制能力增强了安全性。例如，如果飞机发生发动机故障，飞行员可以迅速调整桨距以最大化升力并控制下降。在现代航空中，“可控可逆桨距”系统普遍存在于商业和军用飞机中。它们在直升机中尤为重要，因为精确控制升力和推力对于安全操作至关重要。直升机飞行员依赖这些系统执行复杂的机动，例如悬停和快速方向变化，而没有这种控制桨叶角度的能力将是不可能的。此外，先进技术的整合，如飞行电传操纵系统，进一步增强了“可控可逆桨距”机制的功能。这些系统利用电子控制来管理桨距调整，从而实现更精确和响应更快的操控。因此，飞行员可以专注于他们的主要任务，即驾驶飞机，而系统则根据实时数据优化性能。总之，“可控可逆桨距”的概念是航空航天工程智慧的证明。它代表了飞机设计的重大进步，为飞行员提供了安全高效操作所需的工具。随着技术的不断发展，我们可以期待这一关键系统的进一步增强，最终导致天空中更安全、更强大的飞机。