rheostatic braking

简明释义

变阻器制动

英英释义

例句

1.During the test, the engineer monitored the rheostatic braking system for any anomalies.

在测试过程中，工程师监控了电阻制动系统以发现任何异常。

2.The train uses rheostatic braking to slow down safely when approaching the station.

这列火车使用电阻制动在接近车站时安全减速。

3.The heavy machinery relies on rheostatic braking to prevent accidents during operation.

重型机械依赖于电阻制动在操作过程中防止事故发生。

4.In industrial applications, rheostatic braking is crucial for controlling motor speed.

在工业应用中，电阻制动对于控制电机速度至关重要。

5.The bus was equipped with rheostatic braking to enhance its stopping power.

这辆公交车配备了电阻制动以增强其制动能力。

作文

In the world of electrical engineering and transportation, the concept of rheostatic braking plays a significant role in enhancing the efficiency and safety of various vehicles, particularly electric trains and trams. To understand this mechanism, we first need to delve into what rheostatic braking actually means. It refers to a method of slowing down or stopping a vehicle by converting its kinetic energy into heat through resistive elements. This process not only helps in decelerating the vehicle but also allows for energy recovery in some systems.The principle behind rheostatic braking is relatively straightforward. When a vehicle equipped with an electric motor needs to reduce its speed, the motor is switched from a propulsion mode to a generator mode. In this scenario, the motor continues to rotate due to the vehicle's momentum, but instead of drawing power from the electrical supply, it generates electricity. This generated electricity is then passed through a rheostat, which is essentially a variable resistor. The resistance creates heat, which dissipates into the environment, effectively slowing down the vehicle.One of the key advantages of rheostatic braking is that it allows for precise control over the braking process. Unlike traditional mechanical brakes, which can wear out over time and require maintenance, rheostatic systems can provide a consistent braking force without physical wear. Additionally, because the energy generated during braking is converted into heat rather than being wasted, this method can be more energy-efficient when compared to standard braking techniques.Moreover, rheostatic braking contributes to the overall safety of the vehicle. By providing a reliable and controllable means of slowing down, it reduces the risk of skidding or losing control, especially on slippery surfaces. This is particularly important in public transportation systems, where passenger safety is paramount.However, there are limitations to the use of rheostatic braking. One significant drawback is that the heat generated during the braking process must be managed effectively. If not properly dissipated, the resistive elements can overheat, leading to potential failures. Therefore, engineers must design these systems with adequate cooling mechanisms to ensure they operate safely and efficiently over extended periods.In conclusion, rheostatic braking is a vital technology in modern electric vehicles, offering numerous benefits such as improved energy efficiency, reduced wear on mechanical components, and enhanced safety. As the demand for sustainable and efficient transportation solutions continues to grow, understanding and implementing technologies like rheostatic braking will be crucial for meeting future challenges in the transportation sector. With ongoing advancements in materials and engineering practices, we can expect to see even more innovative applications of this braking method in various fields, further solidifying its importance in the realm of electrical engineering and vehicle design.

在电气工程和交通运输的世界中，电阻制动的概念在提高各种车辆（特别是电动列车和有轨电车）的效率和安全性方面发挥着重要作用。要理解这一机制，我们首先需要深入了解电阻制动的实际含义。它指的是通过电阻元件将车辆的动能转化为热量以减速或停车的一种方法。这一过程不仅有助于减速，还允许在某些系统中进行能量回收。电阻制动背后的原理相对简单。当装备有电动机的车辆需要降低速度时，电动机从推进模式切换到发电模式。在这种情况下，由于车辆的惯性，电动机继续旋转，但不再从电源中抽取电力，而是产生电力。然后，这些产生的电力通过一个电阻器传递，电阻器本质上是一个可变电阻。电阻产生的热量会散发到环境中，有效地减慢车辆的速度。电阻制动的一个关键优点是，它允许对制动过程进行精确控制。与传统的机械制动不同，后者可能随着时间的推移而磨损并需要维护，电阻系统可以提供一致的制动力，而无需物理磨损。此外，由于在制动过程中产生的能量转化为热量而不是被浪费，这种方法在与标准制动技术相比时可能更具能效。此外，电阻制动有助于提高车辆的整体安全性。通过提供一种可靠且可控的减速手段，它降低了在滑溜表面上打滑或失控的风险。这在公共交通系统中尤为重要，因为乘客的安全至关重要。然而，使用电阻制动也存在局限性。一个显著的缺点是，在制动过程中产生的热量必须有效管理。如果没有得到适当的散热，电阻元件可能会过热，从而导致潜在故障。因此，工程师必须设计这些系统，以确保它们在长时间内安全高效地运行，配备足够的冷却机制。总之，电阻制动是现代电动汽车中的一项重要技术，提供了许多好处，如提高能效、减少机械部件磨损和增强安全性。随着对可持续和高效交通解决方案的需求不断增长，理解和实施像电阻制动这样的技术对于应对未来交通领域的挑战至关重要。随着材料和工程实践的不断进步，我们可以期待在各个领域看到这种制动方法的更多创新应用，进一步巩固其在电气工程和车辆设计领域的重要性。