power curve

简明释义

功率曲线

英英释义

例句

1.Understanding the power curve 功率曲线 of a bicycle helps cyclists improve their performance by pacing themselves effectively.

了解自行车的功率曲线可以帮助骑自行车的人通过有效的配速来提高他们的表现。

2.In wind turbine design, engineers analyze the power curve 功率曲线 to determine the energy production at various wind speeds.

在风力涡轮机设计中，工程师分析功率曲线以确定在不同风速下的能量生产。

3.The power curve 功率曲线 of a new electric motor shows significant improvements over previous models.

新电动机的功率曲线显示出比以前的模型有显著改善。

4.The pilot adjusted the aircraft's throttle to optimize the power curve 功率曲线 for better fuel efficiency during the flight.

飞行员调整了飞机的油门，以优化功率曲线，以提高飞行过程中的燃油效率。

5.During the marathon, runners often refer to their power curve 功率曲线 to adjust their pace and conserve energy.

在马拉松比赛中，跑步者常常参考他们的功率曲线来调整步伐并节省能量。

作文

In the realm of aerodynamics, the term power curve refers to a graphical representation that illustrates the relationship between the power output of an aircraft engine and the airspeed of the aircraft. Understanding this concept is crucial for pilots, engineers, and aviation enthusiasts alike, as it helps in optimizing performance during various phases of flight. The power curve is typically plotted with power on the vertical axis and airspeed on the horizontal axis. This allows for a clear visualization of how much power is required at different speeds, which is essential for safe and efficient flying.The power curve can be divided into three main sections: the region of low speed, the region of best climb, and the region of high speed. In the low-speed region, the power required to maintain level flight increases significantly due to increased drag. Pilots must be aware of this increase as it affects their ability to climb or maneuver effectively. For instance, when an aircraft is flying at a slow speed, the pilot must ensure that they have enough power available to avoid stalling.As the aircraft gains speed and enters the best climb region, the power curve shows that the power required decreases. This is because the lift-to-drag ratio improves, allowing the aircraft to climb more efficiently. Pilots often aim to operate within this region during takeoff and initial climb, as it represents the most favorable conditions for gaining altitude.In contrast, once the aircraft reaches higher speeds, the power curve begins to rise again. This increase indicates that more power is needed to overcome the additional drag that occurs at higher velocities. It is important for pilots to recognize this shift in the power curve, as operating at excessive speeds can lead to increased fuel consumption and potential structural stress on the aircraft.Understanding the power curve is not only vital for pilots but also for aircraft designers and engineers. By analyzing the power curve, engineers can make informed decisions about engine specifications, aerodynamic designs, and overall aircraft performance. For example, they can identify the optimal engine size and configuration that will allow the aircraft to perform efficiently across a range of speeds.Moreover, the power curve plays a significant role in flight training. Flight instructors often use this concept to teach students about the importance of maintaining proper airspeed and power settings during various maneuvers. By familiarizing themselves with the power curve, student pilots can develop a better understanding of how their aircraft behaves in different flight conditions, ultimately enhancing their flying skills.In conclusion, the power curve is a fundamental concept in aviation that provides valuable insights into the relationship between power output and airspeed. Whether you are a pilot, engineer, or aviation enthusiast, grasping the intricacies of the power curve is essential for ensuring safe and efficient flight operations. As technology advances and aircraft become more sophisticated, the significance of understanding the power curve will continue to grow, making it a critical area of study in the field of aviation.

在空气动力学领域，术语power curve指的是一种图形表示，说明了飞机发动机的功率输出与飞机空速之间的关系。理解这一概念对飞行员、工程师和航空爱好者都至关重要，因为它有助于在飞行的各个阶段优化性能。power curve通常以功率为纵轴，以空速为横轴进行绘制。这使得在不同速度下所需的功率清晰可见，这对于安全和高效的飞行至关重要。power curve可以分为三个主要部分：低速区域、最佳爬升区域和高速区域。在低速区域，保持水平飞行所需的功率显著增加，这是由于阻力增加。飞行员必须意识到这种增加，因为它影响他们的爬升或有效机动能力。例如，当飞机以较慢的速度飞行时，飞行员必须确保他们有足够的功率以避免失速。随着飞机加速并进入最佳爬升区域，power curve显示所需功率减少。这是因为升阻比改善，使飞机能够更有效地爬升。飞行员通常在起飞和初始爬升期间希望在这个区域内操作，因为它代表了获得高度的最有利条件。相反，一旦飞机达到更高的速度，power curve又开始上升。这一增加表明需要更多的功率来克服在较高速度下产生的额外阻力。飞行员识别这一变化的power curve是至关重要的，因为在过高的速度下操作可能导致燃油消耗增加和潜在的结构压力。理解power curve不仅对飞行员至关重要，对飞机设计师和工程师也是如此。通过分析power curve，工程师可以就发动机规格、空气动力学设计和整体飞机性能做出明智的决策。例如，他们可以确定最佳的发动机尺寸和配置，从而使飞机在各种速度下高效运行。此外，power curve在飞行训练中也发挥着重要作用。飞行教官通常使用这一概念来教导学生在各种机动过程中保持适当的空速和功率设置。通过熟悉power curve，学员飞行员可以更好地理解他们的飞机在不同飞行条件下的表现，从而提升其飞行技能。总之，power curve是航空中的一个基本概念，为功率输出与空速之间的关系提供了有价值的见解。无论您是飞行员、工程师还是航空爱好者，掌握power curve的复杂性对于确保安全和高效的飞行操作都是至关重要的。随着技术的进步和飞机变得更加复杂，理解power curve的重要性将继续增长，使其成为航空领域研究的关键领域。