neutral line

简明释义

中性线

英英释义

例句

1.In a balanced three-phase system, the neutral line carries no current.

在平衡的三相系统中，中性线不携带任何电流。

2.The technician checked the neutral line to ensure there were no faults in the wiring.

技术员检查了中性线以确保布线没有故障。

3.The neutral line in this circuit ensures that the current flows properly without any interruptions.

这个电路中的中性线确保电流正常流动，没有任何中断。

4.During the installation, it is crucial to identify the neutral line correctly.

在安装过程中，正确识别中性线至关重要。

5.If the neutral line is not properly connected, it can lead to electrical hazards.

如果中性线连接不当，可能会导致电气危险。

作文

In the world of physics and engineering, the term neutral line refers to a specific line in a structural element where there is no tensile or compressive stress during bending. Understanding the concept of the neutral line is crucial for engineers and architects as it helps them design structures that can withstand various loads without failing. When a beam bends under load, the top part of the beam experiences compression while the bottom part experiences tension. The neutral line is the dividing line between these two areas, and it remains unstressed. This principle is not only applicable to beams but also to other structural elements such as arches and frames.To illustrate the importance of the neutral line, let’s consider a simple example of a cantilever beam. When one end of the beam is fixed and the other end is subjected to a downward force, the beam bends. The upper fibers of the beam are compressed, and the lower fibers are stretched. The neutral line runs along the length of the beam at the point where the material is neither compressed nor stretched. Engineers must calculate the position of the neutral line accurately to ensure that the material used can handle the expected stresses without yielding or breaking.Moreover, the location of the neutral line can change based on the cross-sectional shape of the beam and the type of material used. For instance, in a rectangular beam, the neutral line typically lies at the centroid of the beam's cross-section. However, in more complex shapes, such as I-beams or T-beams, the neutral line may shift, requiring more advanced calculations to determine its exact position.The implications of the neutral line extend beyond simple beam theory. In the field of materials science, understanding how different materials respond to stress along the neutral line can inform the selection of materials for specific applications. For example, composite materials may behave differently under stress, and knowing the behavior of the neutral line can help engineers choose the right composite for a particular structure.In addition to structural engineering, the concept of the neutral line can also be applied in various fields such as biomechanics and robotics. In biomechanics, understanding how forces act on the human body can lead to better designs for prosthetics and orthotics, ensuring that they mimic the natural movements and stresses experienced by biological limbs. In robotics, the principles surrounding the neutral line can influence the design of robotic arms and joints, allowing for more efficient and effective movement.In conclusion, the neutral line is a fundamental concept that plays a vital role in the design and analysis of structures across various disciplines. Its significance in determining where stress occurs within a material allows engineers and designers to create safe and effective solutions to complex problems. As technology advances and new materials are developed, the understanding of the neutral line will continue to evolve, providing even greater insights into the mechanics of materials and structures. Therefore, mastering the concept of the neutral line is essential for anyone involved in the fields of engineering, architecture, and materials science.

在物理和工程的世界中，术语neutral line指的是在弯曲过程中结构元素中没有拉伸或压缩应力的特定线。理解neutral line的概念对工程师和建筑师至关重要，因为它帮助他们设计能够承受各种荷载而不发生失败的结构。当梁在荷载下弯曲时，梁的上部经历压缩，而下部经历拉伸。neutral line是这两个区域之间的分界线，它保持无应力。这一原理不仅适用于梁，也适用于拱和框架等其他结构元素。为了说明neutral line的重要性，让我们考虑一个简单的悬臂梁的例子。当梁的一端固定而另一端受到向下的力时，梁会弯曲。梁的上纤维受到压缩，而下纤维受到拉伸。neutral line沿着梁的长度运行，在该点材料既不被压缩也不被拉伸。工程师必须准确计算neutral line的位置，以确保所用材料能够承受预期的应力而不会屈服或断裂。此外，neutral line的位置可能会根据梁的横截面形状和所用材料类型而变化。例如，在矩形梁中，neutral line通常位于梁横截面的重心处。然而，在更复杂的形状中，例如I型梁或T型梁，neutral line可能会偏移，需要进行更高级的计算以确定其确切位置。neutral line的影响超出了简单的梁理论。在材料科学领域，了解不同材料在neutral line附近如何响应应力可以为特定应用的材料选择提供信息。例如，复合材料在应力下的表现可能不同，了解neutral line的行为可以帮助工程师为特定结构选择合适的复合材料。除了结构工程之外，neutral line的概念还可以应用于生物力学和机器人等多个领域。在生物力学中，理解力量如何作用于人体可以导致更好的假肢和矫形器设计，确保它们模仿生物肢体所经历的自然运动和应力。在机器人技术中，围绕neutral line的原则可以影响机器手臂和关节的设计，从而实现更高效和有效的运动。总之，neutral line是一个基本概念，在各个学科的结构设计和分析中发挥着重要作用。它在确定材料内部应力发生位置方面的重要性使工程师和设计师能够为复杂问题创造安全有效的解决方案。随着技术的进步和新材料的发展，对neutral line的理解将继续演变，为材料和结构的力学提供更大的洞察。因此，掌握neutral line的概念对于任何参与工程、建筑和材料科学领域的人来说都是至关重要的。