self excited vibrations

简明释义

自激振动

英英释义

例句

1.In certain conditions, self excited vibrations can lead to structural failure, meaning 自激振动可能导致结构失效。

在某些条件下，自激振动可能导致结构失效，这意味着自激振动可能导致结构失效。

2.The research focused on controlling self excited vibrations in mechanical systems, which are 自激振动在机械系统中的控制。

研究集中在控制机械系统中的自激振动上，即自激振动在机械系统中的控制。

3.Understanding self excited vibrations is crucial for improving product design, as 自激振动对产品性能有直接影响。

理解自激振动对于改善产品设计至关重要，因为自激振动对产品性能有直接影响。

4.The technician used software to analyze self excited vibrations in the engine, which are 自激振动在发动机中的分析。

技术人员使用软件分析发动机中的自激振动，即自激振动在发动机中的分析。

5.The engineer explained how the machine operates with self excited vibrations, which refers to 自激振动 that occur without external influence.

工程师解释了机器如何通过自激振动运作，这指的是在没有外部影响的情况下发生的自激振动。

作文

In the world of engineering and physics, understanding the concept of self excited vibrations is crucial for designing stable structures and systems. These vibrations occur when a system generates oscillations due to its own energy input, rather than an external force acting upon it. This phenomenon can be observed in various applications, from mechanical systems like engines and turbines to civil engineering structures such as bridges and buildings. The study of self excited vibrations helps engineers predict and mitigate potential failures that could arise from these oscillations.To illustrate this concept, consider a simple example of a swing. When a child pushes the swing, they provide energy that causes it to move back and forth. However, if the swing were to somehow continue moving on its own without any external push, it would be exhibiting self excited vibrations. In this case, the swing's motion is sustained by the energy stored in its system, leading to continuous oscillation until external forces, such as friction or air resistance, eventually dampen the motion.In engineering applications, self excited vibrations can be both beneficial and detrimental. For instance, in certain types of machinery, engineers may design components that intentionally create self excited vibrations to enhance performance or efficiency. These vibrations can help in processes like mixing or grinding materials, where a consistent oscillation can lead to better results.However, uncontrolled self excited vibrations can lead to catastrophic failures. For example, in the case of bridges, if the natural frequency of the structure matches the frequency of the vibrations caused by wind or traffic, it can result in resonance. This resonance amplifies the vibrations, potentially leading to structural damage or even collapse. Therefore, engineers must carefully analyze and design structures to avoid conditions that could lead to harmful self excited vibrations.Moreover, the understanding of self excited vibrations extends beyond just mechanical and civil engineering. In the field of electronics, certain circuits can exhibit similar behavior. For example, oscillators are designed to generate signals at specific frequencies, and if these circuits experience self excited vibrations, they can produce unwanted noise or distortions in the signal. Engineers must ensure that these systems are stable and do not fall into chaotic oscillation patterns.In conclusion, the phenomenon of self excited vibrations plays a significant role in various fields of engineering and technology. Understanding how these vibrations occur and how to control them is essential for creating safe and efficient systems. As technology continues to advance, the need for engineers to comprehend and manage self excited vibrations will only grow, ensuring the reliability and longevity of the structures and devices we depend on every day.

在工程和物理的世界中，理解“自激振动”这一概念对于设计稳定的结构和系统至关重要。这种振动发生在一个系统由于自身能量输入而产生振荡时，而不是外部力量作用于它。这个现象可以在各种应用中观察到，从机械系统如发动机和涡轮机，到土木工程结构如桥梁和建筑物。“自激振动”的研究帮助工程师预测和减轻可能因这些振荡而导致的潜在故障。为了说明这个概念，考虑一个简单的例子：秋千。当一个孩子推动秋千时，他们提供的能量使其前后摆动。然而，如果秋千在没有任何外部推动的情况下继续移动，它就会表现出“自激振动”。在这种情况下，秋千的运动是由其系统中储存的能量维持的，导致持续的振荡，直到外部力量（如摩擦或空气阻力）最终减弱这种运动。在工程应用中，“自激振动”既可以是有益的，也可以是有害的。例如，在某些类型的机器中，工程师可能设计出故意产生“自激振动”的部件，以增强性能或效率。这些振动可以帮助混合或研磨材料，在这些过程中，一致的振荡可以带来更好的结果。然而，无法控制的“自激振动”可能导致灾难性的故障。例如，在桥梁的案例中，如果结构的自然频率与风或交通造成的振动频率相匹配，就会导致共振。这种共振会放大振动，可能导致结构损坏甚至倒塌。因此，工程师必须仔细分析和设计结构，以避免导致有害的“自激振动”的条件。此外，“自激振动”的理解不仅限于机械和土木工程。在电子领域，某些电路也可能表现出类似的行为。例如，振荡器被设计用来生成特定频率的信号，如果这些电路经历“自激振动”，可能会产生不必要的噪声或信号失真。工程师必须确保这些系统是稳定的，不会陷入混沌的振荡模式。总之，“自激振动”现象在各个工程和技术领域中发挥着重要作用。理解这些振动如何发生以及如何控制它们，对于创建安全和高效的系统至关重要。随着技术的不断进步，工程师对“自激振动”的理解和管理需求只会增加，从而确保我们每天依赖的结构和设备的可靠性和耐用性。