dynamic amplification factor

简明释义

动力放大系数

英英释义

例句

1.The dynamic amplification factor 动态放大系数 helps predict the response of buildings to wind loads.

在风荷载作用下，动态放大系数 动态放大系数 有助于预测建筑物的反应。

2.A higher dynamic amplification factor 动态放大系数 indicates that a system is more sensitive to dynamic loads.

较高的动态放大系数 动态放大系数 表明系统对动态荷载的敏感性更高。

3.In seismic design, the dynamic amplification factor 动态放大系数 is crucial for ensuring structures can withstand earthquakes.

在抗震设计中，动态放大系数 动态放大系数 对确保结构能够承受地震至关重要。

4.In vibration analysis, the dynamic amplification factor 动态放大系数 is used to evaluate the maximum response of a structure.

在振动分析中，动态放大系数 动态放大系数 用于评估结构的最大响应。

5.Engineers calculate the dynamic amplification factor 动态放大系数 to assess how vibrations will affect a bridge under heavy traffic.

工程师计算动态放大系数 动态放大系数 来评估重型交通下振动将如何影响桥梁。

作文

In the field of structural engineering, understanding the behavior of structures under dynamic loads is crucial. One important concept that engineers frequently refer to is the dynamic amplification factor. This term describes how much a structure's response to dynamic loads—such as earthquakes or wind—exceeds its static response. Essentially, it quantifies the increase in stress, strain, or displacement that occurs when a structure is subjected to rapidly changing forces compared to when it is subjected to steady, static forces.When designing buildings and other structures, engineers must consider various factors that influence their stability and integrity. The dynamic amplification factor plays a significant role in this process. For instance, during an earthquake, the ground shakes and creates forces that can cause buildings to sway. If these forces are not accounted for, the resulting vibrations could lead to catastrophic failures. Therefore, calculating the dynamic amplification factor allows engineers to predict how much more intense these dynamic responses will be compared to static conditions.The calculation of the dynamic amplification factor involves several parameters, including the natural frequency of the structure, the frequency of the applied dynamic load, and the damping ratio of the material. Structures with low natural frequencies tend to experience higher amplification because they resonate more with the frequency of the applied loads. Similarly, materials with low damping ratios will exhibit greater amplification effects since they do not dissipate energy as effectively.To illustrate the importance of the dynamic amplification factor, consider a tall building designed to withstand high winds. Engineers must ensure that the building can flexibly respond to wind loads without exceeding acceptable limits of deformation or stress. By applying the dynamic amplification factor in their calculations, they can determine the maximum expected forces during extreme wind events and design reinforcements accordingly.Moreover, the dynamic amplification factor is not only relevant for buildings but also for bridges, towers, and other infrastructure. For example, a suspension bridge experiences dynamic loads from vehicles and pedestrians, as well as environmental forces like wind. Engineers must use the dynamic amplification factor to ensure that the bridge can safely accommodate these loads without excessive movement or risk of failure.In conclusion, the dynamic amplification factor is a critical parameter in structural engineering that helps predict how structures will behave under dynamic loads. By understanding and applying this concept, engineers can design safer and more resilient buildings and infrastructure. As we continue to face challenges from natural disasters and climate change, the importance of accurately assessing the dynamic amplification factor in our designs becomes ever more significant. This understanding not only protects lives but also ensures the longevity and sustainability of our built environment.

在结构工程领域，理解结构在动态荷载下的行为至关重要。工程师经常提到的一个重要概念是动态放大因子。这个术语描述了当结构受到动态荷载（如地震或风）时，其响应超过静态响应的程度。基本上，它量化了当结构受到快速变化的力时，所产生的应力、应变或位移的增加程度，相较于当它受到稳定、静态力时的情况。在设计建筑物和其他结构时，工程师必须考虑影响其稳定性和完整性的各种因素。动态放大因子在这个过程中扮演着重要角色。例如，在地震期间，地面震动并产生力量，可能导致建筑物摇摆。如果这些力量没有被考虑，随之而来的振动可能会导致灾难性的失败。因此，计算动态放大因子可以让工程师预测这些动态响应在静态条件下将会有多么强烈。动态放大因子的计算涉及多个参数，包括结构的自然频率、施加的动态荷载的频率以及材料的阻尼比。具有低自然频率的结构往往会经历更高的放大，因为它们与施加荷载的频率共振。同样，具有低阻尼比的材料会表现出更大的放大效应，因为它们不能有效地耗散能量。为了说明动态放大因子的重要性，考虑一座设计用来抵御强风的高层建筑。工程师必须确保建筑能够灵活地响应风荷载，而不超过可接受的变形或应力限制。通过在计算中应用动态放大因子，他们可以确定在极端风事件中预期的最大力量，并相应设计加固措施。此外，动态放大因子不仅与建筑物有关，还与桥梁、塔楼和其他基础设施相关。例如，悬索桥受到车辆和行人的动态荷载，以及风等环境力量的影响。工程师必须使用动态放大因子来确保桥梁可以安全地容纳这些荷载，而不会出现过度的运动或失败风险。总之，动态放大因子是结构工程中的一个关键参数，帮助预测结构在动态荷载下的行为。通过理解和应用这一概念，工程师可以设计出更安全、更具韧性的建筑和基础设施。随着我们继续面临自然灾害和气候变化的挑战，准确评估设计中动态放大因子的重要性愈发突出。这种理解不仅保护生命，还确保了我们建筑环境的持久性和可持续性。