torsional critical speed

简明释义

临界扭转转速

英英释义

例句

1.The torsional critical speed 扭转临界转速 is a critical parameter in the design of high-speed motors.

在高速电机的设计中，torsional critical speed 扭转临界转速是一个关键参数。

2.To ensure stability, the system was tested below its torsional critical speed 扭转临界转速 during the initial phase.

为了确保稳定性，在初始阶段，系统的测试在其torsional critical speed 扭转临界转速以下进行。

3.The design of the turbine shaft must consider the torsional critical speed 扭转临界转速 to avoid resonance during operation.

涡轮轴的设计必须考虑到torsional critical speed 扭转临界转速，以避免在运行过程中产生共振。

4.Exceeding the torsional critical speed 扭转临界转速 can lead to catastrophic failure in the drive system.

超过torsional critical speed 扭转临界转速可能会导致驱动系统的灾难性故障。

5.Engineers performed simulations to determine the torsional critical speed 扭转临界转速 of the rotating machinery.

工程师进行了模拟，以确定旋转机械的torsional critical speed 扭转临界转速。

作文

The concept of torsional critical speed is fundamental in the field of mechanical engineering, particularly in the design and analysis of rotating machinery. Understanding this concept is essential for engineers who aim to ensure the safety and reliability of machines that operate under rotational forces. In simple terms, torsional critical speed refers to the speed at which a rotating shaft experiences resonance due to torsional vibrations. When a shaft rotates at this specific speed, the natural frequency of the system aligns with the frequency of the external forces acting on it, resulting in amplified oscillations that can lead to catastrophic failure if not properly managed.The importance of torsional critical speed cannot be overstated. For example, in applications such as turbines, generators, and motors, the consequences of ignoring the critical speed can be severe. Engineers must conduct thorough analyses to determine the critical speeds of their designs, ensuring that operational speeds do not approach these critical thresholds. This involves utilizing mathematical models and simulations to predict how the system will behave under various conditions.To illustrate the significance of torsional critical speed, consider a scenario where a motor operates at a speed close to its critical speed. As the motor accelerates, it may reach a point where the torsional vibrations become amplified. This can cause excessive stress on the shaft and its components, leading to premature wear or even complete failure. In industries where downtime is costly, such as aerospace or manufacturing, understanding and mitigating the risks associated with torsional critical speed is crucial.Furthermore, engineers often employ various techniques to alter the critical speed of a system. By changing the mass distribution along the shaft or adjusting its stiffness, they can shift the critical speed away from the operational range. This proactive approach helps in enhancing the reliability of the machinery and prolonging its lifespan.In conclusion, the concept of torsional critical speed plays a pivotal role in the design and operation of rotating machinery. It highlights the need for engineers to carefully analyze and understand the dynamic behavior of their systems. By doing so, they can prevent potential failures and ensure that machines operate safely and efficiently. The study of torsional critical speed is not just an academic exercise; it has real-world implications that affect the performance and longevity of critical machinery across various industries.

“扭转临界速度”这一概念在机械工程领域中具有重要意义，尤其是在旋转机械的设计和分析中。理解这一概念对于旨在确保在旋转力作用下运行的机器安全性和可靠性的工程师至关重要。简单来说，扭转临界速度是指旋转轴在经历扭转振动时所达到的共振速度。当轴以此特定速度旋转时，系统的自然频率与作用于其上的外部力的频率相一致，从而导致振动被放大，如果不加以管理，可能会导致灾难性的故障。扭转临界速度的重要性不容小觑。例如，在涡轮机、发电机和电动机等应用中，忽视临界速度的后果可能是严重的。工程师必须进行全面分析，以确定其设计的临界速度，确保操作速度不会接近这些临界阈值。这涉及利用数学模型和仿真来预测系统在各种条件下的行为。为了说明扭转临界速度的重要性，考虑一个电动机在接近其临界速度时运行的场景。当电动机加速时，它可能会达到一个点，在这个点上，扭转振动变得被放大。这可能导致轴及其组件承受过大的应力，从而导致过早磨损甚至完全失效。在停机成本高昂的行业中，如航空航天或制造业，理解和减轻与扭转临界速度相关的风险至关重要。此外，工程师通常采用各种技术来改变系统的临界速度。通过改变轴上的质量分布或调整其刚度，他们可以将临界速度移出操作范围。这种主动的方法有助于提高机器的可靠性并延长其使用寿命。总之，扭转临界速度的概念在旋转机械的设计和操作中发挥着关键作用。它突显了工程师需要仔细分析和理解其系统动态行为的必要性。通过这样做，他们可以防止潜在的故障，确保机器安全高效地运行。对扭转临界速度的研究不仅仅是学术练习；它对各行业关键机械的性能和寿命产生了现实影响。