angle of sweepback

简明释义

1. 回扫角; 2. 后掠角;

英英释义

例句

1.The aircraft's performance is significantly affected by the angle of sweepback.

飞机的性能受到后掠角的显著影响。

2.A higher angle of sweepback can improve an aircraft's speed at high altitudes.

较高的后掠角可以提高飞机在高空的速度。

3.Designers must consider the angle of sweepback when creating new wing shapes.

设计师在创造新的机翼形状时必须考虑后掠角。

4.The angle of sweepback influences both aerodynamic efficiency and stability.

后掠角影响空气动力效率和稳定性。

5.Engineers calculated the optimal angle of sweepback for the new fighter jet.

工程师计算了新战斗机的最佳后掠角。

作文

The design of aircraft wings plays a crucial role in determining their performance and efficiency. One important aspect of wing design is the angle of sweepback, which refers to the angle at which the wings are angled backward from the fuselage. This specific angle can significantly affect the aerodynamics of the aircraft, influencing factors such as lift, drag, and stability. Understanding the angle of sweepback is essential for both engineers and pilots, as it directly impacts the aircraft's handling characteristics during flight.When wings are swept back at an angle, they can reduce drag at high speeds, allowing the aircraft to achieve greater speeds without requiring excessive power. This is particularly beneficial for military jets and commercial airliners that operate at supersonic or near-supersonic speeds. The angle of sweepback helps to delay the onset of shock waves that occur when an aircraft approaches the speed of sound, thus enhancing performance and efficiency.In contrast, a straight-wing design, which has little to no angle of sweepback, is typically more effective at lower speeds. Aircraft designed for short takeoff and landing, such as regional jets or general aviation planes, often feature straight wings to maximize lift at low velocities. Therefore, the choice of angle of sweepback is a critical consideration in the overall design process, balancing the need for speed with the requirements for stability and control.Furthermore, the angle of sweepback also influences the stall characteristics of an aircraft. A higher sweepback angle can lead to a more gradual stall, providing pilots with better control and recovery options in the event of a loss of lift. This is especially important in high-performance aircraft where precise maneuverability is required. Pilots must be aware of the implications of the angle of sweepback on their aircraft's performance, as it can affect how the plane behaves during different phases of flight.In conclusion, the angle of sweepback is a fundamental aspect of aircraft wing design that has significant implications for performance, efficiency, and safety. Whether designing a new aircraft or flying an existing one, understanding this concept is vital. It allows engineers to create designs that optimize speed and stability while enabling pilots to make informed decisions in various flying conditions. As technology advances and the demand for faster, more efficient aircraft increases, the importance of mastering the angle of sweepback will only grow, shaping the future of aviation.

飞机翼的设计在决定其性能和效率方面起着至关重要的作用。一个重要的翼设计方面是后掠角，它指的是机翼从机身向后倾斜的角度。这个特定的角度可以显著影响飞机的空气动力学，影响升力、阻力和稳定性等因素。理解后掠角对工程师和飞行员都至关重要，因为它直接影响飞机在飞行中的操控特性。当机翼以一个角度向后掠时，它们可以在高速下减少阻力，使飞机能够在不需要过多动力的情况下达到更高的速度。这对于军用喷气机和运营于超音速或接近超音速速度的商用客机尤其有利。后掠角有助于延迟在飞机接近音速时发生的冲击波，从而增强性能和效率。相反，直翼设计，即几乎没有后掠角，通常在低速下更为有效。设计用于短距离起降的飞机，如区域喷气机或通用航空飞机，通常采用直翼，以最大化低速时的升力。因此，选择后掠角是在整体设计过程中至关重要的考虑因素，平衡速度需求与稳定性和控制要求。此外，后掠角还会影响飞机的失速特性。较高的后掠角可能导致更加渐进的失速，为飞行员在失去升力的情况下提供更好的控制和恢复选项。这在高性能飞机中尤为重要，因为这些飞机需要精确的机动性。飞行员必须意识到后掠角对其飞机性能的影响，因为这可能影响飞机在不同飞行阶段的表现。总之，后掠角是飞机翼设计的一个基本方面，对性能、效率和安全性有重大影响。无论是设计新飞机还是飞行现有飞机，理解这一概念都是至关重要的。它使工程师能够创建优化速度和稳定性的设计，同时使飞行员能够在各种飞行条件下做出明智的决策。随着技术的发展和对更快、更高效飞机的需求增加，掌握后掠角的重要性只会增加，塑造航空的未来。