frictional resistance

简明释义

摩擦阻力

英英释义

例句

1.In a fluid dynamics experiment, we measured the frictional resistance 摩擦阻力 encountered by the object as it moved through water.

在流体动力学实验中，我们测量了物体在水中移动时遇到的摩擦阻力 frictional resistance。

2.Reducing frictional resistance 摩擦阻力 in machinery can lead to increased energy efficiency.

减少机械中的摩擦阻力 frictional resistance可以提高能量效率。

3.The engineer calculated the frictional resistance 摩擦阻力 of the moving parts to ensure optimal performance.

工程师计算了运动部件的摩擦阻力 frictional resistance以确保最佳性能。

4.The design of the tires takes into account the frictional resistance 摩擦阻力 to improve fuel efficiency.

轮胎的设计考虑了摩擦阻力 frictional resistance以提高燃油效率。

5.The frictional resistance 摩擦阻力 between the surfaces affects the overall speed of the vehicle.

表面之间的摩擦阻力 frictional resistance影响车辆的整体速度。

作文

Friction is an essential concept in physics, as it plays a significant role in our daily lives. One of the key components of friction is what we refer to as frictional resistance, which can be understood as the opposing force that resists the motion of two surfaces sliding against each other. This phenomenon is not only crucial in understanding basic mechanics but also has practical applications in various fields such as engineering, transportation, and even sports. In this essay, we will explore the concept of frictional resistance in detail, its implications, and how it affects our everyday activities.To begin with, let us define frictional resistance. It arises when two surfaces come into contact and move relative to one another. The roughness of the surfaces, the materials involved, and the force pressing them together all contribute to the level of frictional resistance. For instance, a rubber tire on a concrete road experiences more frictional resistance than a metal ball bearing on a smooth surface. This resistance is vital for providing grip and control, especially in vehicles. Without sufficient frictional resistance, cars would skid uncontrollably, leading to dangerous situations.In engineering, understanding frictional resistance is crucial for designing machines and structures. Engineers must calculate the amount of frictional resistance to ensure that moving parts operate smoothly and efficiently. Excessive frictional resistance can lead to wear and tear, causing machines to fail prematurely. Therefore, lubricants are often used to reduce frictional resistance, enhancing performance and longevity. For example, oil is commonly used in engines to minimize frictional resistance between moving parts, allowing them to function seamlessly.Moreover, frictional resistance is a critical factor in the field of transportation. When designing vehicles, engineers must consider the frictional resistance between tires and the road surface. The right balance of frictional resistance is necessary for safety, as it affects braking distance and cornering ability. Additionally, in aerodynamics, frictional resistance plays a role in the drag experienced by vehicles. Understanding how to minimize frictional resistance can lead to more fuel-efficient designs, which is particularly important in today’s environmentally conscious world.In sports, frictional resistance can greatly influence performance. Athletes often rely on specific types of footwear designed to optimize frictional resistance for their respective sports. For instance, sprinters benefit from shoes that provide maximum grip on the track, while skiers require a different type of frictional resistance to glide smoothly over snow. Coaches and athletes must understand how frictional resistance affects their performance to make informed decisions about equipment and technique.In conclusion, frictional resistance is a fundamental aspect of physics that impacts various aspects of our lives. From ensuring the safety of vehicles to enhancing the performance of machines and athletes, understanding frictional resistance is essential. As we continue to innovate and improve technology, the principles of frictional resistance will remain a cornerstone of engineering and design, helping us navigate the challenges of the future.

摩擦是物理学中的一个基本概念，因为它在我们的日常生活中扮演着重要角色。摩擦的一个关键组成部分是我们所称之为摩擦阻力，可以理解为抵抗两个表面相互滑动的运动的对立力量。这种现象不仅对理解基本机械原理至关重要，而且在工程、交通运输甚至体育等多个领域都有实际应用。在这篇文章中，我们将详细探讨摩擦阻力的概念、其影响以及它如何影响我们的日常活动。首先，让我们定义一下摩擦阻力。当两个表面接触并相对运动时，就会产生摩擦阻力。表面的粗糙度、所涉及的材料以及施加在它们之间的压力都共同影响摩擦阻力的水平。例如，橡胶轮胎在混凝土路面上的摩擦阻力大于光滑表面上的金属球轴承。这种阻力对于提供抓地力和控制至关重要，尤其是在车辆中。如果没有足够的摩擦阻力，汽车将失去控制，导致危险的情况。在工程领域，理解摩擦阻力对于设计机器和结构至关重要。工程师必须计算摩擦阻力的大小，以确保运动部件平稳高效地运作。过大的摩擦阻力可能导致磨损，加速机器的故障。因此，通常使用润滑剂来减少摩擦阻力，提高性能和耐用性。例如，油通常用于发动机中，以最小化运动部件之间的摩擦阻力，使它们能够无缝运作。此外，摩擦阻力是交通运输领域的一个关键因素。在设计车辆时，工程师必须考虑轮胎与路面之间的摩擦阻力。正确的摩擦阻力平衡对于安全至关重要，因为它影响制动距离和转弯能力。此外，在空气动力学中，摩擦阻力在车辆所经历的阻力中也起着作用。理解如何最小化摩擦阻力可以导致更节能的设计，这在今天环保意识日益增强的世界中尤为重要。在体育运动中，摩擦阻力也会极大地影响表现。运动员通常依赖于特定类型的鞋子，旨在优化他们各自运动的摩擦阻力。例如，短跑运动员受益于在跑道上提供最大抓地力的鞋子，而滑雪者则需要不同类型的摩擦阻力以便在雪上顺畅滑行。教练和运动员必须理解摩擦阻力如何影响他们的表现，以便对设备和技术做出明智的决策。总之，摩擦阻力是物理学的一个基本方面，影响着我们生活的各个方面。从确保车辆安全到提升机器和运动员的表现，理解摩擦阻力至关重要。随着我们不断创新和改进技术，摩擦阻力的原理将始终是工程和设计的基石，帮助我们应对未来的挑战。