forced vibrations

简明释义

强制振动

英英释义

例句

1.Researchers are exploring how forced vibrations affect the performance of musical instruments.

研究人员正在探讨强迫振动如何影响乐器的性能。

2.In machinery design, forced vibrations can lead to unexpected failures if not properly managed.

在机械设计中，如果不加以妥善管理，强迫振动可能会导致意外故障。

3.The engineer studied the effects of forced vibrations on the bridge structure to ensure its stability.

工程师研究了强迫振动对桥梁结构的影响，以确保其稳定性。

4.The technician adjusted the settings to minimize forced vibrations in the compressor.

技术员调整设置以最小化压缩机中的强迫振动。

5.The team conducted tests to measure the impact of forced vibrations on the aircraft's fuselage.

团队进行了测试，以测量强迫振动对飞机机身的影响。

作文

In the realm of physics and engineering, understanding the concept of forced vibrations is essential for various applications, from designing buildings to creating musical instruments. Forced vibrations refer to oscillations that occur when a system is subjected to an external periodic force. This phenomenon can be observed in numerous contexts, including mechanical systems, structural engineering, and even in everyday objects like bridges and musical devices.To illustrate, consider a simple example of a child on a swing. When someone pushes the swing at regular intervals, the swing moves higher and higher. The external force exerted by the person pushing the swing is what creates the forced vibrations. The swing's natural frequency—the rate at which it would oscillate if left alone—interacts with the frequency of the pushes, leading to an increase in amplitude. This interaction highlights the significance of resonance, a crucial aspect of forced vibrations.In engineering, the implications of forced vibrations are profound. For instance, in the construction of skyscrapers, engineers must account for the forces that act on the building due to wind or seismic activity. These external forces can induce forced vibrations, which may lead to structural failure if not properly managed. Engineers employ dampers and other technologies to mitigate these vibrations, ensuring the safety and stability of the structures.Another fascinating application of forced vibrations is found in musical instruments. Take a guitar, for example. When a player plucks a string, the string vibrates at a certain frequency. However, if the player uses a technique that applies a consistent force at a specific interval, the string will resonate, producing a louder sound. This is another instance of forced vibrations, where the external force enhances the natural oscillation of the string, resulting in a richer tone.Moreover, forced vibrations can also have detrimental effects, especially in mechanical systems. For example, in machinery, if the operating frequency matches the natural frequency of a component, it can lead to excessive vibrations, causing wear and tear or even catastrophic failure. This phenomenon is known as resonance and is a critical consideration in the design and maintenance of machines.In conclusion, forced vibrations are a fundamental concept in both physics and engineering, influencing a wide range of applications. From enhancing the sound of musical instruments to posing challenges in structural integrity, understanding forced vibrations allows us to harness their benefits while mitigating their risks. As technology advances, the study of forced vibrations will continue to play a vital role in innovation and safety across various fields.

在物理和工程领域，理解强迫振动的概念对各种应用至关重要，从建筑设计到乐器制作。强迫振动是指当一个系统受到外部周期性力的作用时发生的振荡。这种现象可以在多个上下文中观察到，包括机械系统、结构工程，甚至在日常物品如桥梁和乐器中。为了说明这一点，考虑一个简单的例子：孩子在秋千上。当有人定期推动秋千时，秋千会越来越高。施加在秋千上的外部力就是造成强迫振动的原因。秋千的自然频率——如果不受外力影响，它将以多快的速度振荡——与推动的频率相互作用，导致振幅增加。这种相互作用突显了共振的重要性，这是强迫振动的一个关键方面。在工程学中，强迫振动的影响深远。例如，在摩天大楼的建设中，工程师必须考虑风或地震活动对建筑物施加的力量。这些外部力量可能会引发强迫振动，如果没有妥善管理，可能会导致结构失效。工程师们采用阻尼器和其他技术来减轻这些振动，确保结构的安全和稳定。另一个有趣的强迫振动应用可以在乐器中找到。以吉他为例。当演奏者拨动琴弦时，琴弦以一定的频率振动。然而，如果演奏者使用一种在特定间隔施加一致力量的技巧，琴弦将共振，产生更响亮的声音。这是强迫振动的另一个实例，其中外部力量增强了琴弦的自然振荡，导致音调更丰富。此外，强迫振动也可能产生不利影响，尤其是在机械系统中。例如，在机械设备中，如果操作频率与某个部件的自然频率匹配，可能会导致过度振动，从而引起磨损甚至灾难性故障。这种现象被称为共振，是机器设计和维护中的一个关键考虑因素。总之，强迫振动是物理学和工程学中的一个基本概念，影响着广泛的应用。从增强乐器的声音到对结构完整性构成挑战，理解强迫振动使我们能够利用其优势，同时减轻其风险。随着技术的进步，强迫振动的研究将在各个领域的创新和安全中继续发挥重要作用。