parametric resonance

简明释义

参量共振

英英释义

例句

1.The findings on parametric resonance 参数共振 could impact future aerospace engineering projects.

关于参数共振的发现可能会影响未来的航空航天工程项目。

2.The concept of parametric resonance 参数共振 is crucial in designing stable structures in engineering.

在工程设计中，参数共振的概念对于设计稳定结构至关重要。

3.The engineers studied the effects of parametric resonance 参数共振 on the stability of the bridge design.

工程师们研究了参数共振对桥梁设计稳定性的影响。

4.Researchers are exploring parametric resonance 参数共振 for potential applications in energy harvesting.

研究人员正在探索参数共振在能量收集中的潜在应用。

5.In the laboratory, we observed parametric resonance 参数共振 in a pendulum system under varying conditions.

在实验室中，我们观察到在不同条件下摆系统中的参数共振。

作文

In the realm of physics and engineering, the concept of parametric resonance plays a crucial role in understanding how systems respond to varying parameters. Parametric resonance refers to the phenomenon where a system experiences amplified oscillations due to periodic changes in its parameters, such as stiffness or mass. This phenomenon is not only fascinating from a theoretical standpoint but also has significant practical applications across various fields, including mechanical engineering, structural dynamics, and even in the design of musical instruments.To illustrate the concept, consider a simple pendulum. If the length of the pendulum is altered periodically, the pendulum can swing with greater amplitude if the timing of the adjustments is synchronized with its natural frequency. This synchronization amplifies the oscillations, demonstrating the essence of parametric resonance. The key takeaway here is that the energy input into the system can lead to dramatic changes in motion when the external conditions are varied appropriately.The implications of parametric resonance extend beyond theoretical examples. Engineers often encounter this phenomenon when designing structures that must withstand dynamic loads, such as bridges or buildings in earthquake-prone areas. If the frequency of the external forces matches the natural frequency of the structure, catastrophic results can ensue due to resonance. Understanding parametric resonance allows engineers to design systems that avoid these dangerous scenarios by ensuring that the parameters of the system do not align with the frequencies of external forces.Moreover, parametric resonance is also observed in electrical circuits, particularly in oscillators and filters. In these systems, changes in capacitance or inductance can lead to increased oscillation amplitudes under certain conditions. This principle is harnessed in technologies such as radio transmitters, where tuning circuits exploit parametric resonance to amplify signals effectively.Musical instruments provide another vivid example of parametric resonance in action. String instruments, for instance, rely on the tension and length of the strings to produce sound. When a musician plucks a string, the vibrations can resonate within the body of the instrument, leading to enhanced sound quality. The adjustments made to the string's tension and length can be seen as a form of parametric resonance, where the periodic changes contribute to the richness of the sound produced.In conclusion, parametric resonance is a compelling concept that highlights the intricate relationship between oscillatory systems and their changing parameters. Its applications span across various disciplines, influencing everything from engineering designs to musical performances. By understanding parametric resonance, we can better predict and control the behavior of dynamic systems, ultimately leading to advancements in technology and improvements in safety and performance. As we continue to explore the nuances of this phenomenon, it becomes clear that parametric resonance is not just a theoretical curiosity, but a fundamental aspect of the physical world that shapes our everyday lives.

在物理和工程领域，参数共振的概念在理解系统如何响应变化的参数方面起着至关重要的作用。参数共振是指由于其参数（如刚度或质量）的周期性变化，系统经历放大振荡的现象。这一现象不仅在理论上引人入胜，而且在机械工程、结构动力学甚至乐器设计等多个领域具有重要的实际应用。为了说明这一概念，可以考虑一个简单的摆。如果摆的长度周期性改变，摆可以在与其自然频率同步的情况下以更大的幅度摆动。这种同步放大了振荡，展示了参数共振的本质。这里的关键是，当外部条件适当变化时，输入到系统中的能量可以导致运动的戏剧性变化。参数共振的影响超出了理论示例。工程师在设计必须承受动态载荷的结构（例如地震多发地区的桥梁或建筑物）时常常会遇到这一现象。如果外力的频率与结构的自然频率相匹配，可能会导致灾难性的结果，因为共振的发生。理解参数共振使工程师能够设计避免这些危险场景的系统，确保系统的参数不与外力的频率对齐。此外，参数共振也出现在电路中，特别是在振荡器和滤波器中。在这些系统中，电容或电感的变化在某些条件下可以导致振荡幅度的增加。这个原理被应用于诸如无线电发射机等技术中，调谐电路利用参数共振有效放大信号。乐器提供了参数共振在实际应用中的另一个生动例子。例如，弦乐器依赖于弦的张力和长度来产生声音。当音乐家拨动弦时，振动可以在乐器的共鸣箱内共振，从而增强音质。对弦的张力和长度的调整可以视为一种参数共振，其中周期性变化有助于产生丰富的声音。总之，参数共振是一个引人入胜的概念，突显了振荡系统与其变化参数之间的复杂关系。它的应用跨越多个学科，影响从工程设计到音乐表演的一切。通过理解参数共振，我们可以更好地预测和控制动态系统的行为，最终推动技术进步，提高安全性和性能。随着我们继续探索这一现象的细微差别，显然参数共振不仅仅是一个理论上的好奇，而是塑造我们日常生活的物理世界的基本方面。