self-excited vibration

简明释义

自激振动

英英释义

例句

1.The research focused on understanding the causes of self-excited vibration 自激振动 in rotating machinery.

研究集中在理解旋转机械中自激振动self-excited vibration的原因。

2.Engineers often use simulation software to predict self-excited vibration 自激振动 in complex systems.

工程师通常使用仿真软件来预测复杂系统中的自激振动self-excited vibration。

3.To mitigate self-excited vibration 自激振动, the design team implemented a damping system in the structure.

为了减轻自激振动self-excited vibration，设计团队在结构中实施了阻尼系统。

4.The engineer discovered that the machine was experiencing self-excited vibration 自激振动 during operation, which could lead to premature wear.

工程师发现机器在运行过程中出现了自激振动self-excited vibration，这可能导致过早磨损。

5.During testing, the prototype exhibited self-excited vibration 自激振动, prompting further analysis.

在测试过程中，原型显示出自激振动self-excited vibration，促使进一步分析。

作文

In the field of engineering, particularly in mechanical and structural systems, understanding the concept of self-excited vibration is crucial for ensuring stability and functionality. 自激振动 refers to a type of oscillation that occurs when a system generates its own energy through feedback mechanisms. This phenomenon can be observed in various applications, from bridges swaying in the wind to the vibrations of musical instruments. To illustrate this concept, consider a simple example of a swing. When a person pushes a swing, they provide an external force, leading to oscillations. However, if the swing is designed in such a way that it can generate its own motion after the initial push, we see the emergence of self-excited vibration. In this case, the energy from the swing's motion is converted back into kinetic energy, allowing it to continue swinging without additional pushes.The implications of self-excited vibration extend beyond recreational swings. In civil engineering, structures like bridges and buildings must be designed to withstand forces that may induce 自激振动. For instance, during an earthquake, the natural frequency of a building may resonate with the seismic waves, leading to potentially catastrophic vibrations. Engineers must carefully analyze these potential interactions to prevent structural failure.Another interesting application of self-excited vibration is found in the field of acoustics. Musical instruments rely on this principle to produce sound. For example, in a guitar, the strings vibrate when plucked, creating sound waves. The body of the guitar amplifies these vibrations, resulting in a rich, resonant sound. Here, the instrument itself contributes to the 自激振动, enhancing the overall auditory experience.However, self-excited vibration can also lead to undesirable consequences. In machinery, excessive vibrations can cause wear and tear, leading to breakdowns and increased maintenance costs. For instance, in rotating equipment, if the vibrations reach a certain threshold, they can cause fatigue in materials, ultimately resulting in failure. Therefore, engineers must implement damping techniques to mitigate these vibrations, ensuring the longevity and reliability of their designs.In conclusion, the concept of self-excited vibration is pivotal across various disciplines, influencing everything from the design of safe structures to the creation of beautiful music. Understanding how systems can generate their own oscillations helps engineers and designers create more efficient and resilient products. As technology advances, the study of 自激振动 will continue to play a significant role in innovation, pushing the boundaries of what is possible in both engineering and art.