critical speed

简明释义

临界速率

英英释义

Critical speed refers to the speed at which a system, such as a rotating shaft or a vehicle, experiences resonance, leading to increased oscillations or vibrations that can cause structural failure or instability.

临界速度是指系统(如旋转轴或车辆)在此速度下经历共振,导致振动或摆动增加,从而可能引起结构故障或不稳定。

例句

1.During testing, the team observed that exceeding the critical speed 临界速度 caused vibrations.

在测试过程中,团队观察到超过critical speed 临界速度会导致振动。

2.In wind turbine design, understanding the critical speed 临界速度 is essential for stability.

在风力发电机设计中,理解critical speed 临界速度对稳定性至关重要。

3.The critical speed 临界速度 of the vehicle affects its handling and performance.

车辆的critical speed 临界速度影响其操控和性能。

4.The engineer calculated the critical speed 临界速度 of the rotating shaft to ensure it operates safely.

工程师计算了旋转轴的critical speed 临界速度以确保其安全运行。

5.The aircraft's design must account for critical speed 临界速度 to avoid structural failure.

飞机的设计必须考虑critical speed 临界速度以避免结构失效。

作文

The concept of critical speed is essential in various fields of engineering and physics. It refers to the speed at which a system experiences significant changes in behavior or stability. For instance, in mechanical engineering, the critical speed of a rotating shaft is the speed at which the system can begin to vibrate uncontrollably, potentially leading to catastrophic failure. Understanding this speed is crucial for engineers when designing machinery to ensure it operates safely and effectively within its limits. In the context of civil engineering, the critical speed can also apply to structures such as bridges. When a vehicle crosses a bridge at its critical speed, the vibrations can resonate with the natural frequency of the bridge, which may lead to structural damage. Therefore, engineers must calculate these speeds accurately to prevent any potential disasters, ensuring that the bridge can withstand the forces applied to it without compromising safety.Moreover, in the field of aerodynamics, the critical speed is often associated with the speed at which an aircraft can take off or land safely. Pilots must be aware of this speed to manage their aircraft efficiently during flight operations. If an aircraft exceeds its critical speed during certain phases of flight, it may experience loss of control or other dangerous situations.The importance of understanding critical speed extends beyond engineering. In sports science, for example, athletes often train to improve their performance by understanding their own critical speed in terms of endurance and speed. This concept helps them optimize their training regimens and enhance their competitive edge. By identifying their critical speed, athletes can tailor their workouts to push their limits without risking injury.In summary, the term critical speed encapsulates a vital principle across multiple disciplines. Whether in engineering, aviation, or sports, recognizing and calculating critical speed is fundamental to maintaining safety, enhancing performance, and achieving desired outcomes. As technology advances and our understanding of these principles deepens, the implications of critical speed will continue to play a pivotal role in innovation and development. Engineers, pilots, and athletes alike must remain vigilant about this concept to ensure success in their respective fields.

“临界速度”这一概念在工程和物理的多个领域中至关重要。它指的是一个系统经历显著行为或稳定性变化的速度。例如,在机械工程中,旋转轴的“临界速度”是系统开始不受控制地振动的速度,这可能导致灾难性的故障。了解这个速度对工程师在设计机械时至关重要,以确保其在安全和有效的范围内运行。在土木工程的背景下,“临界速度”也适用于桥梁等结构。当车辆以其“临界速度”通过桥梁时,振动可能与桥梁的自然频率共振,这可能导致结构损坏。因此,工程师必须准确计算这些速度,以防止任何潜在的灾难,确保桥梁能够承受施加于其上的力量而不危及安全。此外,在空气动力学领域,“临界速度”通常与飞机安全起飞或着陆的速度相关。飞行员必须意识到这个速度,以便在飞行操作中有效管理他们的飞机。如果飞机在某些飞行阶段超过其“临界速度”,可能会经历失去控制或其他危险情况。理解“临界速度”的重要性超越了工程。在运动科学中,例如,运动员通常通过了解自己的“临界速度”在耐力和速度方面来改善他们的表现。这一概念帮助他们优化训练计划,增强竞争优势。通过识别他们的“临界速度”,运动员可以调整他们的锻炼,以推动他们的极限而不冒受伤的风险。总之,“临界速度”这一术语概括了多个学科中的一个重要原则。无论是在工程、航空还是体育领域,识别和计算“临界速度”对于维护安全、提高性能和实现预期结果至关重要。随着技术的进步和我们对这些原则理解的加深,“临界速度”的影响将继续在创新和发展中发挥关键作用。工程师、飞行员和运动员都必须对这一概念保持警惕,以确保在各自领域的成功。