unstable roll

简明释义

不稳定横摇

英英释义

例句

1.The aircraft experienced an unstable roll during the turbulence, which caused concern among the passengers.

飞机在颠簸中经历了不稳定的滚转，这让乘客们感到担忧。

2.Engine failure can lead to an unstable roll in helicopters, requiring immediate action from the pilot.

发动机故障可能导致直升机出现不稳定的滚转，需要飞行员立即采取行动。

3.The drone's unstable roll made it difficult to maintain a steady flight path.

无人机的不稳定的滚转使其难以保持稳定的飞行轨迹。

4.During the test flight, the pilot had to correct for an unstable roll that was unexpected.

在试飞期间，飞行员不得不纠正一个意外的不稳定的滚转。

5.The boat capsized due to an unstable roll after hitting a large wave.

船在撞上大浪后由于不稳定的滚转而翻覆。

作文

In the world of aerodynamics and flight, understanding the concept of an unstable roll is crucial for both pilots and engineers. An unstable roll refers to a condition where an aircraft experiences difficulty in maintaining a stable attitude during flight, particularly in the roll axis. This phenomenon can lead to excessive rolling motion that can be challenging to control, resulting in potential safety hazards. The mechanics behind an unstable roll can be attributed to various factors, including aerodynamic forces, weight distribution, and the design of the aircraft itself.To delve deeper into the implications of an unstable roll, it is essential to first understand the basic principles of flight. Aircraft are designed to achieve a delicate balance between lift, weight, thrust, and drag. When these forces are in equilibrium, the aircraft can fly smoothly. However, when an imbalance occurs, such as a sudden shift in weight or a change in aerodynamic forces, the aircraft may begin to roll uncontrollably. This is where the term unstable roll comes into play.For instance, during takeoff or landing, if one wing encounters turbulence while the other remains unaffected, the aircraft may experience an unstable roll. Pilots must be trained to recognize the signs of this instability and respond promptly to regain control. Failure to do so could result in a dangerous situation, potentially leading to a crash. Therefore, understanding how to manage an unstable roll is vital for ensuring flight safety.Moreover, the design of an aircraft plays a significant role in its susceptibility to an unstable roll. Aircraft with a high aspect ratio, which means they have long wings relative to their width, may be more prone to this condition due to the increased lift generated at the tips of the wings. Conversely, aircraft designed with shorter wings may exhibit greater stability. Engineers must carefully consider these factors when designing new aircraft to minimize the risk of unstable roll.In addition to design and training, technology has also advanced to help mitigate the risks associated with unstable roll. Modern aircraft are equipped with sophisticated avionics and stability augmentation systems that can automatically correct minor roll disturbances. These systems use sensors to detect changes in the aircraft's attitude and make real-time adjustments to the control surfaces, helping to maintain stability and prevent an unstable roll.In conclusion, the concept of unstable roll is a critical aspect of aviation that encompasses various elements, from pilot training to aircraft design and technological advancements. Understanding this phenomenon not only enhances flight safety but also contributes to the overall efficiency of air travel. As the aviation industry continues to evolve, ongoing research and development will be essential in addressing the challenges posed by unstable roll and ensuring that future aircraft remain safe and reliable for all passengers. By prioritizing education and innovation, we can work towards minimizing the risks associated with unstable roll and promoting a safer flying experience for everyone.

在空气动力学和飞行的世界中，理解“不稳定滚转”这一概念对飞行员和工程师至关重要。“不稳定滚转”是指飞机在飞行过程中，特别是在滚转轴上，难以保持稳定姿态的一种状态。这种现象可能导致过度的滚转运动，难以控制，从而造成潜在的安全隐患。“不稳定滚转”的机制可以归因于多种因素，包括空气动力学力、重量分布和飞机本身的设计。要深入探讨“不稳定滚转”的影响，首先需要理解飞行的基本原理。飞机被设计成在升力、重量、推力和阻力之间达到微妙的平衡。当这些力量处于平衡状态时，飞机可以平稳飞行。然而，当出现失衡时，例如重量的突然转移或空气动力学力的变化，飞机可能会开始失控地滚转。这就是“不稳定滚转”一词的由来。例如，在起飞或着陆过程中，如果一只机翼遭遇湍流而另一只机翼未受影响，飞机可能会经历“不稳定滚转”。飞行员必须接受培训，以识别这种不稳定的迹象并迅速做出反应，以重新获得控制。如果不这样做，可能会导致危险情况，甚至坠毁。因此，了解如何管理“不稳定滚转”对于确保飞行安全至关重要。此外，飞机的设计在其易感性方面也起着重要作用。高展弦比的飞机，即相对于其宽度具有较长机翼的飞机，可能由于机翼尖端产生的升力增加而更容易出现这种情况。相反，设计较短机翼的飞机可能表现出更大的稳定性。工程师在设计新飞机时必须仔细考虑这些因素，以最小化“不稳定滚转”的风险。除了设计和培训，技术的进步也有助于减轻与“不稳定滚转”相关的风险。现代飞机配备了复杂的航空电子设备和稳定性增强系统，可以自动纠正轻微的滚转扰动。这些系统使用传感器检测飞机姿态的变化，并实时调整控制面，帮助保持稳定，防止“不稳定滚转”。总之，“不稳定滚转”的概念是航空领域的一个关键方面，涉及多个元素，从飞行员培训到飞机设计以及技术进步。理解这一现象不仅提高了飞行安全性，还有助于提高航空旅行的整体效率。随着航空工业的不断发展，持续的研究和开发将对解决“不稳定滚转”带来的挑战至关重要，并确保未来的飞机在所有乘客中保持安全和可靠。通过优先考虑教育和创新，我们可以努力最小化与“不稳定滚转”相关的风险，促进每个人更安全的飞行体验。