neutral axis

简明释义

中性轴中和轴

英英释义

例句

1.When analyzing the deflection of a cantilever beam, engineers must consider the position of the neutral axis (中性轴).

在分析悬臂梁的挠度时，工程师必须考虑 中性轴 (neutral axis) 的位置。

2.The neutral axis (中性轴) is the line in a structural member where the material experiences no tensile or compressive stress.

在结构构件中，中性轴 (neutral axis) 是材料没有拉伸或压缩应力的线。

3.In a beam subjected to bending, the location of the neutral axis (中性轴) is crucial for determining stress distribution.

在受到弯曲的梁中，中性轴 (neutral axis) 的位置对确定应力分布至关重要。

4.During the load application, the neutral axis (中性轴) does not change its position in linear elastic materials.

在施加载荷的过程中，在线性弹性材料中，中性轴 (neutral axis) 的位置不会改变。

5.Understanding the concept of the neutral axis (中性轴) helps in designing more efficient structural components.

理解 中性轴 (neutral axis) 的概念有助于设计更高效的结构组件。

作文

In the field of engineering, particularly in mechanics and materials science, the concept of the neutral axis plays a crucial role in understanding how structures behave under various loading conditions. The neutral axis is defined as an imaginary line within a material or structural member where there is no longitudinal stress when it is subjected to bending. This means that above this line, the material experiences compressive stress, while below it, the material experiences tensile stress. Understanding the location and behavior of the neutral axis is essential for engineers when designing beams and other structural components to ensure they can withstand applied loads without failing.When a beam bends, it does so due to the application of external forces. As the beam deforms, different sections of the beam experience varying levels of stress. The neutral axis is located at the point where the material transitions from compression to tension. For most symmetrical cross-sections, such as rectangles or circles, the neutral axis is located at the centroid of the shape. However, in asymmetrical cross-sections, determining the location of the neutral axis requires careful analysis and calculation.The significance of the neutral axis extends beyond theoretical applications; it has practical implications in construction and design. Engineers must consider the neutral axis when selecting materials and dimensions for beams to ensure safety and efficiency. If a beam is designed without properly accounting for the neutral axis, it may lead to unexpected failures, resulting in costly repairs or even catastrophic accidents.Moreover, the neutral axis is not static; it can change based on the type of loading and the material properties. For instance, if a beam is subjected to a concentrated load at its center, the neutral axis will shift towards the area experiencing higher stress. This dynamic nature of the neutral axis makes it imperative for engineers to conduct thorough analyses during the design phase.In summary, the neutral axis is a fundamental concept in structural engineering that helps predict how materials will respond to bending forces. By understanding the behavior of the neutral axis, engineers can create safer and more efficient designs, ultimately contributing to the integrity of structures we rely on every day. As technology advances and materials evolve, the study of the neutral axis will continue to be a vital area of research, ensuring that our built environment remains safe and resilient against the forces of nature and human activity.

在工程领域，特别是在力学和材料科学中，中性轴的概念在理解结构在各种载荷条件下的行为方面发挥着至关重要的作用。中性轴被定义为在材料或结构构件内部的一条假想线，当其受到弯曲时，该线处没有纵向应力。这意味着在这条线的上方，材料经历压缩应力，而在下方，材料经历拉伸应力。理解中性轴的位置和行为对于工程师在设计梁和其他结构组件时至关重要，以确保它们能够承受施加的载荷而不发生失效。当梁弯曲时，它是由于施加外力所致。随着梁的变形，梁的不同部分经历不同水平的应力。中性轴位于材料从压缩转变为拉伸的点。对于大多数对称截面，如矩形或圆形，中性轴位于形状的重心。然而，在不对称截面中，确定中性轴的位置需要仔细的分析和计算。中性轴的重要性超越了理论应用；它在建筑和设计中具有实际意义。工程师在选择材料和梁的尺寸时，必须考虑中性轴以确保安全和效率。如果一个梁在设计时没有正确考虑中性轴，可能会导致意想不到的失效，从而导致昂贵的修复或甚至灾难性的事故。此外，中性轴并不是静态的；它可以根据载荷类型和材料特性而变化。例如，如果一个梁在其中心受到集中载荷，中性轴将向经历更高应力的区域移动。这种中性轴的动态特性使得工程师在设计阶段进行彻底分析变得至关重要。总之，中性轴是结构工程中的一个基本概念，有助于预测材料对弯曲力的反应。通过理解中性轴的行为，工程师可以创造出更安全、更高效的设计，最终有助于我们日常依赖的结构的完整性。随着技术的进步和材料的发展，中性轴的研究将继续成为一个重要的研究领域，确保我们的建筑环境在自然力量和人类活动的影响下保持安全和韧性。