coulomb friction

简明释义

库仑摩擦

英英释义

例句

1.The engineer calculated the amount of coulomb friction 库仑摩擦 acting on the sliding block.

工程师计算了滑块上作用的库仑摩擦。

2.When analyzing the motion of the cart, we need to account for coulomb friction 库仑摩擦 that opposes its movement.

在分析小车的运动时，我们需要考虑阻碍其运动的库仑摩擦。

3.The coefficient of coulomb friction 库仑摩擦 varies with the materials in contact.

库仑摩擦的系数因接触材料的不同而变化。

4.Understanding coulomb friction 库仑摩擦 is essential for designing efficient braking systems.

理解库仑摩擦对设计高效的制动系统至关重要。

5.In this experiment, we measured the coulomb friction 库仑摩擦 between different surfaces.

在这个实验中，我们测量了不同表面之间的库仑摩擦。

作文

Coulomb friction, often referred to as dry friction, is a fundamental concept in physics and engineering that describes the resistance encountered when two surfaces slide against each other. This type of friction is named after the French physicist Charles-Augustin de Coulomb, who first formulated the laws governing friction in the late 18th century. Understanding coulomb friction (库仑摩擦) is essential for various applications, ranging from mechanical engineering to everyday activities like walking or driving. The principle behind coulomb friction (库仑摩擦) is relatively straightforward. When two surfaces are in contact, they experience a force that opposes their relative motion. This opposing force is what we refer to as friction. The magnitude of this frictional force depends on two main factors: the nature of the materials in contact and the normal force pressing them together. The relationship can be expressed mathematically by the equation: F_f = μN, where F_f is the frictional force, μ is the coefficient of friction, and N is the normal force. The coefficient of friction, μ, is a dimensionless value that varies depending on the materials involved. For instance, rubber on concrete has a high coefficient of friction, which is why vehicles can grip the road effectively. Conversely, ice on metal has a low coefficient, leading to slippery conditions. Understanding these coefficients is crucial for engineers when designing systems that involve moving parts, such as machinery and vehicles. In practical terms, coulomb friction (库仑摩擦) plays a significant role in determining how efficiently machines operate. For example, excessive friction can lead to wear and tear on components, reducing their lifespan and increasing maintenance costs. Therefore, engineers must consider coulomb friction (库仑摩擦) when selecting materials and designing mechanisms to minimize energy loss and enhance performance. Moreover, coulomb friction (库仑摩擦) is not only relevant in mechanical systems but also in biological systems. For instance, when a person walks, their foot pushes against the ground, and the friction generated between the shoe and the surface allows them to move forward without slipping. This interaction is a practical demonstration of how coulomb friction (库仑摩擦) is integral to our daily lives. In conclusion, coulomb friction (库仑摩擦) is a vital concept that underpins many aspects of both engineering and everyday activities. By understanding the principles of friction, we can better design systems that utilize this force effectively, ensuring safety and efficiency in various applications. As we continue to explore the complexities of friction, it becomes clear that coulomb friction (库仑摩擦) will remain an essential topic in both academic research and practical engineering solutions.

库仑摩擦，通常被称为干摩擦，是物理学和工程学中的一个基本概念，描述了当两个表面相互滑动时遇到的阻力。这种摩擦类型以法国物理学家查尔斯-奥古斯丁·库仑的名字命名，他在18世纪末首次制定了关于摩擦的定律。理解库仑摩擦对于各种应用至关重要，从机械工程到日常活动，如走路或驾驶。库仑摩擦的原理相对简单。当两个表面接触时，它们会经历一种反对其相对运动的力。这种反对力就是我们所称的摩擦力。摩擦力的大小取决于两个主要因素：接触材料的性质和将它们压在一起的法向力。这个关系可以用公式表示：F_f = μN，其中F_f是摩擦力，μ是摩擦系数，N是法向力。摩擦系数μ是一个无量纲值，因所涉及的材料而异。例如，橡胶与混凝土之间的摩擦系数较高，这就是为什么车辆能够有效地抓住道路。相反，冰与金属之间的摩擦系数较低，导致滑溜的条件。理解这些系数对于工程师在设计涉及运动部件的系统（如机械和车辆）时至关重要。在实际应用中，库仑摩擦在决定机器的运行效率方面起着重要作用。例如，过度的摩擦可能导致部件磨损，减少其使用寿命并增加维护成本。因此，工程师在选择材料和设计机制时必须考虑库仑摩擦，以最小化能量损失并提高性能。此外，库仑摩擦不仅在机械系统中相关，也在生物系统中发挥作用。例如，当一个人走路时，他们的脚推向地面，鞋子与表面之间产生的摩擦使他们能够向前移动而不打滑。这种相互作用是库仑摩擦在我们日常生活中不可或缺的实用示范。总之，库仑摩擦是一个重要的概念，支撑着工程和日常活动的许多方面。通过理解摩擦的原理，我们可以更好地设计有效利用这种力量的系统，确保各种应用中的安全和效率。随着我们继续探索摩擦的复杂性，很明显，库仑摩擦将始终是学术研究和实际工程解决方案中的一个重要主题。