forced vibration

简明释义

强迫振动

英英释义

例句

1.In a mechanical system, forced vibration can be induced by external forces such as motors.

在机械系统中，强迫振动可以通过外部力量如电动机引起。

2.The testing equipment was designed to measure forced vibration in various materials.

测试设备旨在测量各种材料中的强迫振动。

3.Understanding forced vibration is crucial for designing stable structures.

理解强迫振动对设计稳定结构至关重要。

4.During the experiment, we observed significant forced vibration at certain frequencies.

在实验过程中，我们观察到在某些频率下有显著的强迫振动。

5.The engineer studied the effects of forced vibration on the bridge's structural integrity.

工程师研究了强迫振动对桥梁结构完整性的影响。

作文

In the study of mechanical systems, one important concept is that of forced vibration, which refers to the oscillation of a system due to an external force. This phenomenon occurs when a periodic force is applied to a structure or mechanical component, causing it to vibrate at a frequency that may not be its natural frequency. Understanding forced vibration is crucial in various fields such as engineering, architecture, and even music. To illustrate this concept, consider a simple example: a child on a swing. When a parent pushes the swing at regular intervals, the swing experiences forced vibration because the external force (the push) is acting on it. The frequency of the pushes can synchronize with the natural frequency of the swing, resulting in larger amplitude swings. If the pushes are not timed correctly, the swing may not reach its maximum height, demonstrating how the effectiveness of forced vibration relies on the relationship between the external force and the system's natural frequency.In engineering, forced vibration is a critical factor to consider when designing structures such as bridges and buildings. Engineers must ensure that their designs can withstand external forces, such as wind or earthquakes, which can induce vibrations. For instance, during an earthquake, the ground shakes, and buildings experience forced vibration due to the seismic waves. If the building's natural frequency coincides with the frequency of the vibrations caused by the earthquake, it can lead to catastrophic failure. Therefore, understanding and mitigating forced vibration is essential for ensuring safety and structural integrity.Moreover, forced vibration is also relevant in the field of acoustics. Musical instruments, for example, rely on forced vibration to produce sound. When a musician plays a stringed instrument, they apply a force to the strings, causing them to vibrate. The frequency of these vibrations determines the pitch of the sound produced. If the musician applies a force at a frequency that aligns with the string's natural frequency, the sound will be amplified, showcasing the importance of forced vibration in music production.In summary, forced vibration is a vital concept that spans multiple disciplines, from engineering to music. It highlights the significance of external forces in inducing vibrations within a system and the potential consequences that arise when these forces interact with a system's natural frequency. By studying forced vibration, we can better understand how to design resilient structures, create harmonious music, and predict the behavior of mechanical systems under various conditions. As technology advances, the principles behind forced vibration will continue to play a pivotal role in innovation and safety across diverse fields.

在机械系统的研究中，一个重要的概念是强迫振动，它指的是由于外部力而导致的系统振荡。当周期性力施加到结构或机械组件上时，就会发生这种现象，促使其以可能不是其自然频率的频率振动。理解强迫振动在工程、建筑甚至音乐等多个领域都是至关重要的。为了说明这个概念，考虑一个简单的例子：一个孩子在秋千上。当父母定期推秋千时，秋千经历了强迫振动，因为外部力（推）作用于它。推的频率可以与秋千的自然频率同步，导致更大的摆动幅度。如果推的时机不正确，秋千可能无法达到最大高度，这表明强迫振动的有效性依赖于外部力与系统自然频率之间的关系。在工程学中，强迫振动是设计桥梁和建筑物等结构时必须考虑的关键因素。工程师必须确保他们的设计能够承受外部力量，例如风或地震，这些力量会引发振动。例如，在地震期间，地面震动，建筑物由于地震波而经历强迫振动。如果建筑物的自然频率与地震引起的振动频率重合，可能会导致灾难性的失败。因此，理解和减轻强迫振动对确保安全和结构完整性至关重要。此外，强迫振动在声学领域也很相关。例如，乐器依赖于强迫振动来产生声音。当音乐家演奏弦乐器时，他们对弦施加力量，导致弦振动。这些振动的频率决定了产生的声音的音调。如果音乐家施加的力的频率与弦的自然频率对齐，声音将被放大，展示了强迫振动在音乐制作中的重要性。总之，强迫振动是一个跨越多个学科的重要概念，从工程到音乐。它突显了外部力量在诱发系统内振动中的重要性，以及当这些力量与系统的自然频率相互作用时可能产生的后果。通过研究强迫振动，我们可以更好地理解如何设计出抗压的结构，创造和谐的音乐，并预测机械系统在各种条件下的行为。随着技术的发展，强迫振动背后的原理将继续在各个领域的创新和安全中发挥关键作用。