neutral axis

简明释义

中和轴线

英英释义

例句

1.When designing a structural component, engineers must calculate the position of the neutral axis 中性轴 to ensure safety and performance.

在设计结构组件时，工程师必须计算中性轴 neutral axis 的位置，以确保安全性和性能。

2.The neutral axis 中性轴 is the line along which there is no tension or compression when the beam is loaded.

当梁受载时，中性轴 neutral axis 是没有拉伸或压缩的线。

3.In a bending beam, the location of the neutral axis 中性轴 is crucial for determining how much stress will be experienced by different sections.

在一个弯曲的梁中，中性轴 neutral axis 的位置对于确定不同截面将承受多少应力至关重要。

4.To accurately model the bending behavior, we need to identify the neutral axis 中性轴 of the material.

为了准确模拟弯曲行为，我们需要识别材料的中性轴 neutral axis。

5.In composite materials, the neutral axis 中性轴 may shift depending on the properties of each layer.

在复合材料中，中性轴 neutral axis 可能会根据每层的特性而移动。

作文

In the field of engineering and physics, understanding the concept of the neutral axis is crucial for analyzing the behavior of beams under load. The neutral axis refers to the line within a beam where the material experiences neither tension nor compression when the beam is subjected to bending. This concept is fundamental in structural engineering, as it helps engineers determine how various materials will respond to forces applied to them. When a beam bends, the upper fibers of the beam are compressed while the lower fibers are stretched. The neutral axis, therefore, lies between these two regions, acting as a dividing line where the stress changes from positive (compression) to negative (tension). To visualize this, consider a simple beam supported at both ends with a load applied in the center. As the load is applied, the beam will deform, creating a curve. The top section of the beam will compress, while the bottom section will elongate. The neutral axis is the horizontal line that runs through the center of this curve, indicating the point where the material is neither being pushed together nor pulled apart. Understanding the location of the neutral axis is essential for engineers when designing structures. If the neutral axis is not correctly identified, it could lead to inadequate support and ultimately failure of the structure. For example, if a beam is designed without considering the neutral axis, the material may be over-stressed in certain areas, leading to cracks or complete structural failure. Furthermore, different materials have different properties, which means that the position of the neutral axis can vary based on the material used. In composite beams, where different materials are combined, the neutral axis might not lie at the geometric center of the beam. Engineers must take into account the varying moduli of elasticity of the materials involved to accurately determine the position of the neutral axis. In addition to its application in beams, the concept of the neutral axis extends to other areas of mechanics, such as torsion and buckling. In torsional loading, the neutral axis helps identify the lines along which shear stress occurs, while in buckling scenarios, it assists in predicting failure modes. In conclusion, the neutral axis is a vital concept in the study of mechanics and structural engineering. It allows engineers to understand how materials behave under load, ensuring that structures are designed with safety and efficiency in mind. By accurately identifying the neutral axis, engineers can create more reliable and durable structures, ultimately contributing to safer built environments for all. Therefore, grasping the importance of the neutral axis is essential for anyone involved in the fields of engineering and physics.

在工程和物理学领域，理解“中性轴”的概念对于分析受载梁的行为至关重要。“中性轴”是指在梁弯曲时，材料经历既不拉伸也不压缩的线。这一概念在结构工程中是基础，因为它帮助工程师确定各种材料在施加力量时的反应。当梁弯曲时，梁的上部纤维被压缩，而下部纤维则被拉伸。因此，“中性轴”位于这两个区域之间，充当应力从正（压缩）变化到负（拉伸）的分界线。为了更好地理解这一点，可以考虑一个简单的梁，在两端支撑并在中心施加负载。当施加负载时，梁会变形，形成一个曲线。梁的顶部部分将受到压缩，而底部部分将被拉长。“中性轴”是穿过该曲线中心的水平线，指示材料既没有被挤压也没有被拉扯的点。了解“中性轴”的位置对于工程师在设计结构时至关重要。如果没有正确识别“中性轴”，可能导致支持不足，最终导致结构失败。例如，如果设计梁时没有考虑“中性轴”，某些区域的材料可能会过载，从而导致裂缝或完全结构失效。此外，不同材料具有不同的特性，这意味着使用的材料会影响“中性轴”的位置。在复合梁中，当不同材料组合在一起时，“中性轴”可能不会位于梁的几何中心。工程师必须考虑所涉及材料的弹性模量差异，以准确确定“中性轴”的位置。除了在梁中的应用外，“中性轴”的概念还扩展到力学的其他领域，例如扭转和屈曲。在扭转载荷中，“中性轴”帮助识别剪切应力发生的线路，而在屈曲场景中，它有助于预测失效模式。总之，“中性轴”是力学和结构工程研究中的一个重要概念。它使工程师能够理解材料在载荷下的行为，从而确保结构设计的安全性和效率。通过准确识别“中性轴”，工程师可以创建更可靠和耐用的结构，最终为所有人贡献更安全的建筑环境。因此，掌握“中性轴”的重要性对于任何参与工程和物理学领域的人来说都是必不可少的。