elastic deflection

简明释义

弹性挠曲

英英释义

例句

1.In bridge design, elastic deflection 弹性挠度 is a critical factor that determines the structure's safety and performance.

在桥梁设计中，弹性挠度 elastic deflection 是决定结构安全性和性能的关键因素。

2.The engineer calculated the elastic deflection 弹性挠度 of the beam under load to ensure it would not exceed the allowable limits.

工程师计算了梁在荷载下的弹性挠度 elastic deflection，以确保其不会超过允许的极限。

3.Understanding elastic deflection 弹性挠度 helps architects create safer and more efficient designs.

理解弹性挠度 elastic deflection 有助于建筑师创造更安全和更高效的设计。

4.The team used software to simulate the elastic deflection 弹性挠度 of the materials before construction began.

团队在施工开始之前使用软件模拟材料的弹性挠度 elastic deflection。

5.The elastic deflection 弹性挠度 of the suspension cable was measured to ensure it could handle dynamic loads.

悬索的弹性挠度 elastic deflection 被测量以确保它能够承受动态荷载。

作文

In the field of engineering and materials science, understanding the concept of elastic deflection is crucial for designing structures that can withstand various loads without permanent deformation. Elastic deflection refers to the temporary deformation that occurs when a material is subjected to stress within its elastic limit. This means that once the load is removed, the material will return to its original shape. This property is essential in ensuring the safety and functionality of structures such as bridges, buildings, and mechanical components.When engineers design a structure, they must consider how different materials will respond to applied forces. For instance, if a beam is loaded with weight, it will bend or deflect. The amount of this bending is what we refer to as elastic deflection. The deflection is influenced by several factors, including the material's Young's modulus, the geometry of the beam, and the type of load applied.Young's modulus is a measure of a material's stiffness. A material with a high Young's modulus will experience less elastic deflection under the same load compared to a material with a low Young's modulus. For example, steel has a much higher Young's modulus than rubber, which means that steel beams will deflect less than rubber beams when subjected to the same force. This difference is why steel is commonly used in construction where strength and rigidity are required.The geometry of the beam also plays a significant role in determining elastic deflection. A beam's moment of inertia, which depends on its cross-sectional shape, affects how it bends under load. A wider or deeper beam will typically have a larger moment of inertia, leading to less deflection. Engineers often use I-beams or other specialized shapes to optimize the performance of structural elements, minimizing elastic deflection while maximizing strength.Additionally, the type of load applied to a beam can influence its elastic deflection. Loads can be classified as point loads, distributed loads, or varying loads, each producing different deflection patterns. For example, a point load applied at the center of a simply supported beam will create a different deflection profile compared to a uniformly distributed load across the entire length of the beam. Understanding these differences allows engineers to predict how structures will behave under real-world conditions.In practical applications, engineers often calculate elastic deflection to ensure that structures remain within acceptable limits. Building codes and standards provide guidelines for maximum allowable deflection based on the type of structure and its intended use. By adhering to these guidelines, engineers can prevent issues such as excessive sagging, which could lead to structural failure or discomfort for occupants.In conclusion, elastic deflection is a fundamental concept in engineering that describes the temporary deformation of materials under load. By considering factors such as material properties, geometry, and loading conditions, engineers can design safe and effective structures. Understanding elastic deflection not only helps in creating robust designs but also ensures that structures perform well over their lifespan, maintaining safety and functionality for users. As technology advances, the methods for analyzing and predicting elastic deflection continue to improve, allowing for even more innovative and efficient designs in the future.

在工程和材料科学领域，理解弹性挠度的概念对于设计能够承受各种载荷而不发生永久变形的结构至关重要。弹性挠度是指当材料在其弹性极限内受到应力时所发生的暂时变形。这意味着，一旦负载被移除，材料将恢复到其原始形状。这种特性在确保桥梁、建筑物和机械部件等结构的安全性和功能性方面至关重要。当工程师设计结构时，必须考虑不同材料在施加力时的反应。例如，如果一根梁承受重量，它会弯曲或挠曲。我们所指的挠曲量就是弹性挠度。挠度受到多个因素的影响，包括材料的杨氏模量、梁的几何形状以及施加的载荷类型。杨氏模量是衡量材料刚度的指标。具有高杨氏模量的材料在相同载荷下会比低杨氏模量的材料产生更小的弹性挠度。例如，钢的杨氏模量远高于橡胶，这意味着在施加相同力量时，钢梁的挠度会比橡胶梁小。这种差异正是为什么钢材通常用于需要强度和刚度的建筑中的原因。梁的几何形状也在决定弹性挠度方面发挥着重要作用。梁的惯性矩取决于其截面形状，影响其在载荷下的弯曲程度。较宽或较深的梁通常具有较大的惯性矩，从而导致较小的挠度。工程师通常使用I型梁或其他专门设计的形状来优化结构元件的性能，最小化弹性挠度，同时最大化强度。此外，施加在梁上的载荷类型也会影响其弹性挠度。载荷可以分为集中载荷、分布载荷或变化载荷，每种类型都会产生不同的挠度模式。例如，在简单支撑梁的中心施加的集中载荷将产生与整个梁长度上均匀分布载荷不同的挠度特征。理解这些差异使工程师能够预测结构在现实条件下的行为。在实际应用中，工程师通常计算弹性挠度以确保结构保持在可接受的范围内。建筑规范和标准提供了最大允许挠度的指南，基于结构类型及其预期用途。通过遵循这些指南，工程师可以防止过度下垂等问题，这可能导致结构失效或对使用者造成不适。总之，弹性挠度是工程中的一个基本概念，描述了材料在载荷下的暂时变形。通过考虑材料特性、几何形状和加载条件等因素，工程师可以设计出安全有效的结构。理解弹性挠度不仅有助于创建稳健的设计，还确保结构在其使用寿命内表现良好，为用户保持安全和功能性。随着技术的进步，分析和预测弹性挠度的方法不断改进，使得未来能够实现更加创新和高效的设计。