impact excitation

简明释义

冲击激励

英英释义

例句

1.The researchers conducted a study on the effects of impact excitation 冲击激励 on the structural integrity of bridges.

研究人员对桥梁结构完整性受到的冲击激励影响进行了研究。

2.The scientist explained how impact excitation 冲击激励 can lead to resonance in certain systems.

科学家解释了如何通过冲击激励导致某些系统中的共振。

3.In mechanical engineering, impact excitation 冲击激励 is often used to test the durability of materials.

在机械工程中，冲击激励常用于测试材料的耐久性。

4.Engineers must consider impact excitation 冲击激励 when designing earthquake-resistant buildings.

工程师在设计抗震建筑时必须考虑冲击激励的影响。

5.During the experiment, impact excitation 冲击激励 was applied to observe the response of the system.

在实验过程中，施加了冲击激励以观察系统的响应。

作文

In the field of engineering and physics, the term impact excitation refers to the process by which a sudden force or impact induces vibrations or oscillations in a system. This phenomenon is crucial for understanding how structures respond to dynamic loads, such as those experienced during earthquakes, vehicle collisions, or even the operation of machinery. By studying impact excitation, engineers can design safer buildings, bridges, and vehicles that can withstand unexpected forces.When an external force is applied to a structure, it does not simply deform and return to its original shape; instead, it can generate a series of vibrations. These vibrations are the result of the energy transferred from the impact into the material. The analysis of impact excitation is essential for predicting how these vibrations will propagate through different materials and how they can affect the integrity of the structure.For example, consider a bridge subjected to a sudden load from a heavy truck. The impact creates a rapid change in momentum, resulting in impact excitation that travels through the bridge's components. Engineers must calculate the frequency and amplitude of these vibrations to ensure that the bridge can handle such loads without failing. Failure to account for impact excitation could lead to catastrophic structural failures, endangering lives and property.Moreover, impact excitation plays a significant role in various testing methods employed in material science. In laboratory settings, researchers often use controlled impacts to study the response of materials under dynamic conditions. For instance, a drop weight test may be performed to evaluate how a material behaves when subjected to sudden forces. The results provide valuable insights into the material's toughness, ductility, and overall performance under stress.Another important application of impact excitation is in the field of vibration analysis. Engineers use sensors and accelerometers to measure the vibrations induced by impacts on machinery and equipment. This data helps in diagnosing potential issues, such as misalignment or wear, allowing for timely maintenance before a failure occurs. By understanding the patterns of impact excitation, technicians can predict when and where problems may arise, thereby extending the lifespan of critical machinery.In conclusion, impact excitation is a vital concept in engineering and physics that encompasses the response of materials and structures to sudden forces. Its implications are far-reaching, affecting everything from the safety of infrastructure to the efficiency of industrial processes. As technology advances, the ability to accurately analyze and predict the effects of impact excitation will continue to improve, leading to safer and more resilient designs in our built environment. Understanding this concept not only enhances our technical knowledge but also ensures that we can mitigate risks associated with dynamic loads in our everyday lives.

在工程和物理学领域，术语impact excitation指的是突然的力量或冲击引发系统振动或振荡的过程。这一现象对于理解结构如何应对动态载荷至关重要，例如在地震、车辆碰撞甚至机械操作中所经历的载荷。通过研究impact excitation，工程师可以设计出更安全的建筑、桥梁和车辆，使其能够承受意外的力量。当外部力量施加到结构上时，它并不会简单地变形并返回到原始形状；相反，它可能会产生一系列的振动。这些振动是从冲击传递到材料中的能量的结果。对impact excitation的分析对于预测这些振动如何在不同材料中传播以及它们如何影响结构的完整性至关重要。例如，考虑一座桥梁在重型卡车的突然载荷下受到的影响。冲击产生了动量的快速变化，导致impact excitation在桥梁的组成部分中传播。工程师必须计算这些振动的频率和幅度，以确保桥梁能够承受这样的载荷而不发生故障。如果未能考虑impact excitation，可能会导致灾难性的结构故障，危及生命和财产。此外，impact excitation在材料科学中多种测试方法中也发挥着重要作用。在实验室环境中，研究人员通常使用控制冲击来研究材料在动态条件下的反应。例如，可以进行跌落试验，以评估材料在突然力量作用下的表现。结果提供了对材料韧性、延展性和整体性能的宝贵见解。impact excitation的另一个重要应用是在振动分析领域。工程师使用传感器和加速度计来测量机器和设备受到冲击引起的振动。这些数据有助于诊断潜在问题，例如不对中或磨损，从而在故障发生之前进行及时维护。通过了解impact excitation的模式，技术人员可以预测何时何地可能出现问题，从而延长关键机械的使用寿命。总之，impact excitation是工程和物理学中的一个重要概念，涵盖了材料和结构对突然力量的响应。其影响深远，涉及从基础设施的安全性到工业过程的效率等各个方面。随着技术的进步，准确分析和预测impact excitation的效果的能力将继续提高，从而导致我们建造环境中的设计更加安全和更具韧性。理解这一概念不仅增强了我们的技术知识，还确保我们能够降低与动态载荷相关的风险，保障我们的日常生活。