tractive effort

简明释义

牵引力

英英释义

例句

1.The design of the wheels affects the tractive effort 牵引力 that can be generated by the train.

轮子的设计影响火车能够产生的牵引力。

2.Maintaining optimal tractive effort 牵引力 is essential for efficient train operation.

保持最佳的牵引力对高效的火车运营至关重要。

3.The locomotive's tractive effort 牵引力 is crucial for pulling heavy freight cars over long distances.

机车的牵引力在长途拉动重货车时至关重要。

4.Engineers must calculate the tractive effort 牵引力 needed to ensure trains can start moving on steep gradients.

工程师必须计算所需的牵引力以确保火车能够在陡坡上启动。

5.A higher tractive effort 牵引力 means that the train can accelerate faster from a standstill.

更高的牵引力意味着火车可以更快地从静止状态加速。

作文

The concept of tractive effort is crucial in the field of engineering, particularly in the design and operation of vehicles such as trains and automobiles. Essentially, tractive effort refers to the force exerted by a vehicle's propulsion system that enables it to move forward. This force is vital for overcoming resistance, such as friction and air drag, allowing the vehicle to accelerate and maintain speed. Understanding tractive effort is essential for engineers to optimize performance and efficiency in transportation systems.In the context of railway systems, the tractive effort produced by locomotives must be sufficient to pull the weight of the train, including cargo and passengers. This requires careful calculations and considerations of various factors, including the gradient of the track and the total mass of the train. For instance, when a train ascends a steep incline, the required tractive effort increases significantly due to gravitational forces acting against the motion. Engineers must ensure that locomotives are equipped with powerful engines capable of generating adequate tractive effort to handle such challenges.Moreover, the relationship between tractive effort and wheel slip is another critical aspect in vehicle dynamics. Wheel slip occurs when the wheels lose traction on the rail or road surface, often leading to inefficient acceleration and potential safety hazards. By analyzing the tractive effort, engineers can develop systems that enhance traction control, ensuring that vehicles maintain optimal grip while maximizing their acceleration capabilities.In automotive engineering, the principles of tractive effort apply similarly. The engine's power output translates into tractive effort through the drivetrain, which ultimately drives the wheels. Factors such as tire design, road conditions, and vehicle weight all influence the effective tractive effort available for acceleration. For example, a sports car designed for high performance will have a greater tractive effort compared to a standard sedan, allowing it to accelerate more rapidly.Furthermore, advancements in technology, such as electric and hybrid vehicles, have introduced new dynamics to the concept of tractive effort. Electric motors can deliver high torque instantaneously, resulting in impressive tractive effort from a standstill. This characteristic allows electric vehicles to achieve rapid acceleration, making them competitive with traditional combustion engine vehicles.In conclusion, the understanding of tractive effort is fundamental for engineers in the fields of transportation and vehicle design. It encompasses the forces necessary for movement, taking into account various factors that affect performance. As technology continues to evolve, the principles surrounding tractive effort will play an increasingly significant role in shaping the future of transportation, leading to safer, more efficient, and faster vehicles. By mastering the intricacies of tractive effort, engineers can contribute to the ongoing development of innovative solutions that meet the demands of modern society.

“牵引力”的概念在工程领域中至关重要，特别是在火车和汽车等交通工具的设计和操作中。简单来说，牵引力是指车辆推进系统施加的使其向前移动的力量。这种力量对于克服摩擦和空气阻力等阻力至关重要，使车辆能够加速和保持速度。理解牵引力对于工程师优化交通系统的性能和效率至关重要。在铁路系统的背景下，机车产生的牵引力必须足够大，以拉动列车的重量，包括货物和乘客。这需要仔细计算和考虑各种因素，包括轨道的坡度和列车的总质量。例如，当列车上坡时，由于重力作用，所需的牵引力显著增加。工程师必须确保机车配备强大的发动机，能够产生足够的牵引力以应对这些挑战。此外，牵引力与轮滑之间的关系是车辆动力学中的另一个关键方面。当车轮在轨道或路面上失去抓地力时，就会发生轮滑，这通常导致低效的加速和潜在的安全隐患。通过分析牵引力，工程师可以开发增强牵引控制的系统，确保车辆在最大化加速能力的同时保持最佳抓地力。在汽车工程中，牵引力的原理类似。发动机的功率输出通过传动系统转化为牵引力，最终驱动车轮。轮胎设计、路况和车辆重量等因素都会影响可用于加速的有效牵引力。例如，设计用于高性能的跑车相比标准轿车将具有更大的牵引力，使其能够更快加速。此外，电动和混合动力汽车等技术的进步为牵引力的概念引入了新的动态。电动机可以瞬间提供高扭矩，从而使得从静止状态起就能产生令人印象深刻的牵引力。这一特性使电动汽车能够实现快速加速，使其与传统内燃机车辆竞争。总之，理解牵引力对于交通和车辆设计领域的工程师而言是基础。它涵盖了运动所需的力量，同时考虑影响性能的各种因素。随着技术的不断发展，围绕牵引力的原理将在塑造未来交通方面发挥越来越重要的作用，带来更安全、更高效和更快速的车辆。通过掌握牵引力的复杂性，工程师可以为满足现代社会需求的创新解决方案的持续发展做出贡献。