mechanical resonance

简明释义

机械共振

英英释义

例句

1.A car's suspension system must mitigate mechanical resonance 机械共振 to ensure a smooth ride.

汽车的悬挂系统必须减轻机械共振以确保平稳的行驶。

2.In the design of musical instruments, mechanical resonance 机械共振 is crucial for enhancing sound quality.

在乐器设计中，机械共振对于提高音质至关重要。

3.The engineer explained how mechanical resonance 机械共振 can amplify vibrations in a bridge during strong winds.

工程师解释了机械共振在强风中如何放大桥梁的振动。

4.During the experiment, we observed that mechanical resonance 机械共振 caused the metal rod to vibrate at specific frequencies.

在实验中，我们观察到机械共振导致金属棒在特定频率下振动。

5.Understanding mechanical resonance 机械共振 is essential for preventing structural failures in buildings.

理解机械共振对于防止建筑物结构失效至关重要。

作文

Mechanical systems are often subjected to various forces and vibrations, which can lead to interesting phenomena. One such phenomenon is known as mechanical resonance, or in Chinese, 机械共振. This occurs when a mechanical system is driven by an external force at a frequency that matches the system's natural frequency. The result is a dramatic increase in amplitude of oscillation, which can have both beneficial and detrimental effects depending on the context.To better understand mechanical resonance, consider a simple example: a swing. When a child pushes the swing at just the right moment, the swing goes higher and higher. This is because the timing of the push aligns with the natural frequency of the swing's motion. In this case, the push acts as an external force that enhances the swing's movement through mechanical resonance. In engineering, mechanical resonance can be both a friend and a foe. For instance, bridges and buildings must be designed to withstand the forces of nature, such as wind and earthquakes, which can induce resonance. The infamous collapse of the Tacoma Narrows Bridge in 1940 is a classic example of how mechanical resonance can lead to catastrophic failure. The bridge began to oscillate violently due to wind-induced vibrations that matched its natural frequency, ultimately leading to its collapse.Conversely, mechanical resonance can be harnessed for useful applications. Musical instruments, for example, rely on resonance to produce sound. A guitar string vibrates at a certain frequency, and when plucked, it resonates to create musical notes. The body of the guitar amplifies these vibrations, making the sound louder and richer. Similarly, tuning forks are designed to resonate at specific frequencies, producing clear and consistent pitches.In technology, mechanical resonance is utilized in various devices, from quartz watches to accelerometers. These devices exploit the principles of resonance to maintain accurate timekeeping or measure acceleration. By understanding and controlling mechanical resonance, engineers can design systems that operate efficiently and reliably.However, the consequences of mechanical resonance are not always predictable. In some cases, unexpected resonant frequencies can lead to failures in machinery or structural components. This is why engineers conduct thorough analyses and testing to identify potential resonant frequencies during the design phase. By doing so, they can implement dampening techniques or design modifications to mitigate the risks associated with mechanical resonance.In conclusion, mechanical resonance is a fascinating phenomenon that plays a significant role in both nature and technology. It illustrates the delicate balance between forces and vibrations that can lead to both harmony and chaos. Understanding mechanical resonance is crucial for engineers and scientists alike, as it allows them to harness its power while avoiding its pitfalls. Whether in the design of a sturdy bridge or the crafting of a beautiful musical instrument, the principles of mechanical resonance continue to shape our world in profound ways.

机械系统常常受到各种力量和振动的影响，这可能导致有趣的现象。其中一种现象被称为机械共振，即当一个机械系统受到外部力量以与系统的自然频率相匹配的频率驱动时，就会发生这种现象。结果是振荡幅度显著增加，这在不同的情况下可能产生有益或有害的效果。为了更好地理解机械共振，考虑一个简单的例子：秋千。当一个孩子在恰当的时刻推秋千时，秋千就会越荡越高。这是因为推的时机与秋千运动的自然频率相一致。在这种情况下，推的力量作为外部力量，通过机械共振增强了秋千的运动。在工程学中，机械共振既可以是朋友，也可以是敌人。例如，桥梁和建筑物必须设计得能够抵御自然力量，如风和地震，这些力量可能引发共振。1940年塔科马海峡大桥的倒塌就是一个经典的例子，说明了机械共振如何导致灾难性的失败。由于风引起的振动与桥梁的自然频率相匹配，桥梁开始剧烈振荡，最终导致其倒塌。相反，机械共振可以被利用于有用的应用中。例如，乐器依赖共振来产生声音。吉他弦在特定频率下振动，拨动时，它会共振产生音乐音符。吉他的共鸣箱放大这些振动，使声音更加响亮和丰富。同样，音叉被设计为在特定频率下共振，产生清晰且一致的音调。在技术领域，机械共振被用于各种设备，从石英手表到加速度计。这些设备利用共振原理来保持准确的计时或测量加速度。通过理解和控制机械共振，工程师可以设计出高效可靠的系统。然而，机械共振的后果并不总是可预测的。在某些情况下，意外的共振频率可能导致机械或结构组件的故障。这就是为什么工程师在设计阶段进行彻底分析和测试，以识别潜在的共振频率。通过这样做，他们可以实施阻尼技术或设计修改，以减轻与机械共振相关的风险。总之，机械共振是一个迷人的现象，在自然和技术中发挥着重要作用。它展示了力量和振动之间微妙的平衡，这可能导致和谐与混乱。理解机械共振对于工程师和科学家来说至关重要，因为这使他们能够利用其力量，同时避免其陷阱。无论是在坚固桥梁的设计中，还是在美丽乐器的制作中，机械共振的原理继续以深刻的方式塑造我们的世界。