natural frequency

简明释义

固有频率

英英释义

例句

1.Engineers must calculate the natural frequency of components to avoid resonance.

工程师必须计算组件的固有频率以避免共振。

2.In mechanical systems, the natural frequency can be affected by changes in mass and stiffness.

在机械系统中，固有频率会受到质量和刚度变化的影响。

3.The bridge oscillated at its natural frequency, causing concern among engineers.

这座桥以其固有频率振荡，引起了工程师们的担忧。

4.Understanding the natural frequency of a building is crucial for earthquake engineering.

了解建筑物的固有频率对于抗震工程至关重要。

5.The tuning fork vibrates at a specific natural frequency when struck.

当音叉被敲击时，它会以特定的固有频率振动。

作文

Understanding the concept of natural frequency is essential in various fields of science and engineering. The term refers to the frequency at which a system tends to oscillate in the absence of any driving force. Every physical structure or mechanical system has its own natural frequency, which is determined by its mass and stiffness. When a system is disturbed, it will vibrate at this frequency until the energy dissipates. This phenomenon can be observed in many scenarios, from musical instruments to bridges and buildings.For instance, consider a guitar string. When plucked, the string vibrates at its natural frequency, producing a specific musical note. The tension and length of the string determine this frequency. If the string is too tight, it will have a higher natural frequency, resulting in a higher pitch. Conversely, if the string is loosened, the natural frequency decreases, producing a lower pitch. This relationship between tension, length, and frequency is a fundamental principle in acoustics.In engineering, understanding natural frequency is crucial for designing structures that can withstand dynamic loads, such as earthquakes or wind forces. For example, skyscrapers are designed with their natural frequency in mind to ensure they do not resonate with seismic waves. If a building's natural frequency matches the frequency of an earthquake, it can lead to catastrophic failure. Therefore, engineers conduct thorough analyses to ensure that the natural frequency of a structure is well above the expected frequencies of environmental forces.Moreover, in mechanical systems, such as vehicles or machinery, the natural frequency plays a significant role in vibration analysis. Excessive vibrations can lead to fatigue and eventual failure of components. By analyzing the natural frequency of parts, engineers can design systems that minimize unwanted vibrations, enhancing performance and longevity.In conclusion, the concept of natural frequency is a fundamental aspect of physics and engineering. It influences how structures respond to external forces and how musical instruments produce sound. A deep understanding of natural frequency allows engineers and scientists to create safer, more efficient designs, ensuring that both man-made and natural systems function harmoniously. As technology advances, the importance of mastering the principles surrounding natural frequency will only grow, paving the way for innovations in various fields, from architecture to aerospace engineering.

理解自然频率的概念对于科学和工程的各个领域至关重要。这个术语指的是在没有任何驱动力的情况下，一个系统倾向于振荡的频率。每个物理结构或机械系统都有其自身的自然频率，这由其质量和刚度决定。当一个系统受到干扰时，它将在这个频率下振动，直到能量耗散。这种现象可以在许多场景中观察到，从乐器到桥梁和建筑物。例如，考虑一下吉他弦。当被拨动时，弦以其自然频率振动，产生特定的音乐音符。弦的张力和长度决定了这个频率。如果弦太紧，它将具有更高的自然频率，导致更高的音调。相反，如果弦被放松，自然频率降低，产生较低的音调。这种张力、长度和频率之间的关系是声学中的基本原理。在工程学中，理解自然频率对于设计能够承受动态载荷的结构（如地震或风力）至关重要。例如，摩天大楼的设计考虑了其自然频率，以确保它们不会与地震波共振。如果一栋建筑的自然频率与地震的频率相匹配，就可能导致灾难性的失败。因此，工程师会进行彻底的分析，以确保结构的自然频率远高于环境力量的预期频率。此外，在机械系统中，例如车辆或机械，自然频率在振动分析中发挥着重要作用。过度的振动可能导致部件的疲劳和最终失效。通过分析部件的自然频率，工程师可以设计出最小化不必要振动的系统，从而提高性能和使用寿命。总之，自然频率的概念是物理学和工程学的一个基本方面。它影响结构如何响应外部力量，以及乐器如何产生声音。深入理解自然频率使工程师和科学家能够创造更安全、更高效的设计，确保人造系统和自然系统协调运作。随着技术的进步，掌握围绕自然频率的原则的重要性只会增加，为建筑、航空航天工程等各个领域的创新铺平道路。