torsional fatigue

简明释义

扭转疲劳

英英释义

例句

1.To prevent torsional fatigue, engineers often use materials with high fatigue resistance.

为了防止扭转疲劳，工程师通常使用具有高疲劳抗力的材料。

2.The engineer conducted tests to determine the impact of torsional fatigue on the drive shaft's lifespan.

工程师进行了测试，以确定扭转疲劳对传动轴寿命的影响。

3.The research paper highlighted the effects of torsional fatigue on material performance under cyclic loading.

研究论文强调了在循环载荷下，扭转疲劳对材料性能的影响。

4.In high-performance vehicles, torsional fatigue can lead to failure of the transmission system.

在高性能车辆中，扭转疲劳可能导致传动系统的故障。

5.Manufacturers must consider torsional fatigue when designing components that will experience twisting forces.

制造商在设计会受到扭转力作用的部件时，必须考虑扭转疲劳。

作文

Torsional fatigue is a critical concept in mechanical engineering and materials science that refers to the failure of materials under twisting or rotational forces. This phenomenon occurs when a material is subjected to repeated torsional loading, leading to the gradual accumulation of damage over time. Understanding torsional fatigue (扭转疲劳) is essential for designing safe and reliable structures, especially in applications involving rotating machinery, automotive components, and aerospace systems.The study of torsional fatigue (扭转疲劳) begins with the recognition that materials have limits to the amount of stress they can endure before failing. When a material is twisted, it experiences shear stress, which can lead to microscopic cracks forming within its structure. These cracks may remain dormant for a while, but as the loading continues, they can grow and propagate, ultimately resulting in catastrophic failure.One of the key factors influencing torsional fatigue (扭转疲劳) is the material's properties. Different materials exhibit varying degrees of resistance to torsional loading. For instance, metals such as steel and aluminum possess high fatigue strength, making them suitable for applications where torsional loads are common. In contrast, materials like plastics may have lower fatigue resistance, making them more susceptible to failure under similar conditions.Another important aspect of torsional fatigue (扭转疲劳) is the frequency and magnitude of the applied loads. High-frequency loading can lead to rapid accumulation of damage, while low-frequency loading may allow for some recovery between cycles. Engineers must carefully consider these factors when designing components that will experience torsional forces, ensuring that they can withstand the expected loading conditions over their intended lifespan.Testing for torsional fatigue (扭转疲劳) typically involves subjecting materials or components to controlled torsional loading until failure occurs. This testing helps engineers determine the fatigue limit of a material, which is the maximum stress level that can be applied without causing failure over a specified number of cycles. By understanding the fatigue limits of different materials, engineers can make informed decisions about material selection and design parameters.In practical applications, torsional fatigue (扭转疲劳) plays a significant role in the performance and reliability of various systems. For example, in the automotive industry, drive shafts and axles are constantly subjected to torsional loads as the vehicle accelerates and decelerates. If these components fail due to torsional fatigue (扭转疲劳), it can lead to severe accidents and costly repairs. Therefore, automotive engineers must take into account the potential for torsional fatigue (扭转疲劳) when designing these critical components.In conclusion, torsional fatigue (扭转疲劳) is an essential consideration in the field of engineering, particularly in the design and analysis of components subjected to twisting forces. By understanding the mechanisms behind this phenomenon, engineers can develop safer and more reliable products, ultimately enhancing the performance and longevity of machines and structures. As technology continues to advance, ongoing research into torsional fatigue (扭转疲劳) will further improve our ability to predict and mitigate failures, ensuring the integrity of critical systems across various industries.

扭转疲劳是机械工程和材料科学中的一个重要概念，指的是材料在扭转或旋转力作用下的失效现象。当材料受到重复的扭转载荷时，会导致随着时间的推移逐渐累积损伤。理解torsional fatigue（扭转疲劳）对于设计安全可靠的结构至关重要，尤其是在涉及旋转机械、汽车部件和航空航天系统的应用中。对torsional fatigue（扭转疲劳）的研究始于认识到材料在失效之前能够承受的应力限度。当材料被扭转时，会产生剪切应力，这可能导致其内部结构形成微观裂纹。这些裂纹可能会保持休眠状态一段时间，但随着载荷的持续施加，它们可能会生长并扩展，最终导致灾难性失效。影响torsional fatigue（扭转疲劳）的一个关键因素是材料的性质。不同材料对扭转载荷表现出不同程度的抵抗能力。例如，钢和铝等金属具有高疲劳强度，适合用于常见扭转载荷的应用。相比之下，塑料等材料的疲劳抵抗能力较低，在类似条件下更容易发生失效。另一个关于torsional fatigue（扭转疲劳）的重要方面是施加载荷的频率和幅度。高频加载可能导致损伤快速累积，而低频加载则可能允许在循环之间进行一定的恢复。在设计将经历扭转力的组件时，工程师必须仔细考虑这些因素，以确保它们能够承受预期的载荷条件，并在其预定使用寿命内保持性能。对torsional fatigue（扭转疲劳）的测试通常涉及将材料或组件置于控制的扭转载荷下，直到发生失效。这种测试帮助工程师确定材料的疲劳极限，即在规定的循环次数内不会导致失效的最大应力水平。通过了解不同材料的疲劳极限，工程师可以在材料选择和设计参数方面做出明智的决策。在实际应用中，torsional fatigue（扭转疲劳）在各种系统的性能和可靠性中发挥着重要作用。例如，在汽车工业中，驱动轴和车轴在车辆加速和减速时不断受到扭转载荷。如果这些组件因torsional fatigue（扭转疲劳）而失效，可能会导致严重的事故和昂贵的维修。因此，汽车工程师在设计这些关键组件时必须考虑torsional fatigue（扭转疲劳）的潜在影响。总之，torsional fatigue（扭转疲劳）是工程领域中的一个重要考虑因素，特别是在设计和分析受到扭转力的组件时。通过理解这一现象背后的机制，工程师可以开发出更安全、更可靠的产品，从而增强机器和结构的性能和耐用性。随着技术的不断进步，对torsional fatigue（扭转疲劳）的持续研究将进一步提高我们预测和减轻失效的能力，确保各行业关键系统的完整性。