dynamic braking

简明释义

动力制动

英英释义

例句

1.The train uses dynamic braking to slow down effectively when approaching a station.

火车在接近车站时使用动态制动有效减速。

2.The use of dynamic braking in industrial cranes improves safety during load handling.

工业起重机中使用动态制动提高了搬运货物时的安全性。

3.During downhill driving, trucks rely on dynamic braking to maintain control.

在下坡驾驶时，卡车依赖动态制动来保持控制。

4.In electric vehicles, dynamic braking helps in recharging the battery while decelerating.

在电动车中，动态制动有助于在减速时为电池充电。

5.The roller coaster features dynamic braking systems to ensure passenger safety.

过山车配备了动态制动系统以确保乘客安全。

作文

Dynamic braking is a term commonly used in the field of engineering, particularly in relation to electric motors and transportation systems. In essence, dynamic braking refers to a method of slowing down or stopping a moving vehicle or machinery by converting its kinetic energy into electrical energy. This process occurs when the motor operates as a generator, allowing the energy produced during deceleration to be fed back into the power supply system or dissipated as heat. This technique not only enhances safety but also improves energy efficiency, making it a vital component in modern transportation systems.In trains, for instance, dynamic braking plays a crucial role. When a train needs to slow down, the electric traction motors that drive the wheels are switched to generator mode. As the train slows, the kinetic energy generated is transformed into electrical energy, which can then be used to power other systems on the train or returned to the electrical grid. This not only helps in reducing wear and tear on traditional braking systems but also contributes to energy conservation, making trains more environmentally friendly.Another application of dynamic braking can be found in electric vehicles (EVs). Many EVs utilize regenerative braking systems that operate on similar principles. When the driver applies the brakes, the electric motor switches to generator mode, capturing energy that would otherwise be lost as heat during conventional braking. This recovered energy is stored in the vehicle's battery, extending its range and efficiency. Thus, dynamic braking not only aids in stopping the vehicle but also enhances its overall performance and sustainability.In industrial settings, dynamic braking is employed in various machinery, such as cranes and elevators. By using this braking method, operators can achieve smoother and more controlled stops, thereby enhancing safety for both operators and nearby personnel. The ability to quickly decelerate heavy loads without relying solely on mechanical brakes reduces the risk of equipment damage and increases operational efficiency.Despite its advantages, there are some considerations to keep in mind when implementing dynamic braking. One potential drawback is the generation of heat during the energy conversion process. If not properly managed, this heat can lead to overheating of components, which may necessitate additional cooling systems. Furthermore, the effectiveness of dynamic braking can vary depending on factors such as vehicle speed, load, and system design. Therefore, engineers must carefully analyze these variables to optimize the braking system for specific applications.In conclusion, dynamic braking is an essential technology that significantly enhances the efficiency and safety of various transportation and industrial systems. By transforming kinetic energy into electrical energy, it provides a sustainable alternative to traditional braking methods. As we continue to advance in technology, the importance of dynamic braking will likely grow, paving the way for even more innovative solutions in energy conservation and safety within our increasingly mechanized world.

动态制动是一个常用于工程领域的术语，特别是在电动机和交通系统方面。实质上，动态制动指的是通过将动能转化为电能来减缓或停止移动的车辆或机器的一种方法。当电动机作为发电机运行时，这一过程发生，使得在减速过程中产生的能量可以反馈到电力供应系统或以热的形式散失。这种技术不仅增强了安全性，还提高了能效，使其成为现代交通系统中的一个重要组成部分。例如，在火车中，动态制动发挥着至关重要的作用。当火车需要减速时，驱动车轮的电牵引电动机会切换到发电模式。随着火车减速，产生的动能被转化为电能，可以用来为火车上的其他系统供电或返回电网。这不仅有助于减少传统制动系统的磨损，还有助于节约能源，使火车更环保。另一个动态制动的应用可以在电动车（EV）中找到。许多电动车利用再生制动系统，运作原理类似。当驾驶员踩下刹车时，电动机切换到发电模式，捕捉本来会在传统制动过程中损失的能量。这回收的能量存储在车辆的电池中，延长了其续航里程和效率。因此，动态制动不仅有助于停车，还增强了车辆的整体性能和可持续性。在工业环境中，动态制动被应用于各种机械，如起重机和电梯。通过使用这种制动方法，操作员可以实现更平稳、更可控的停车，从而增强操作人员和附近人员的安全性。能够快速减速重载而不完全依赖机械制动，减少了设备损坏的风险，提高了操作效率。尽管有其优势，但在实施动态制动时需要考虑一些因素。一个潜在的缺点是在能量转换过程中会产生热量。如果管理不当，这种热量可能导致组件过热，可能需要额外的冷却系统。此外，动态制动的有效性可能会因车辆速度、负载和系统设计等因素而异。因此，工程师必须仔细分析这些变量，以优化特定应用的制动系统。总之，动态制动是一项重要的技术，显著提高了各种交通和工业系统的效率和安全性。通过将动能转化为电能，它提供了一种可持续替代传统制动方法的方案。随着我们技术的不断进步，动态制动的重要性可能会进一步增长，为我们日益机械化的世界中的能源保护和安全提供更多创新解决方案。