prony brake

简明释义

一种制动动力计

英英释义

例句

1.A prony brake can be used to simulate different load conditions on a rotating shaft.

prony brake可用于模拟旋转轴上的不同负载条件。

2.During the workshop, participants learned how to calibrate a prony brake for accurate measurements.

在研讨会上，参与者学习了如何校准prony brake以获得准确的测量结果。

3.The engineer used a prony brake to measure the torque of the engine during testing.

工程师使用了一个prony brake来测量测试期间发动机的扭矩。

4.To demonstrate the principle of power absorption, we set up a prony brake in the lab.

为了演示功率吸收的原理，我们在实验室中搭建了一个prony brake。

5.The prony brake is crucial for understanding the performance characteristics of various motors.

prony brake对于理解各种电动机的性能特征至关重要。

作文

The study of mechanical systems often requires an understanding of various methods to measure torque and power. One such method is the use of a prony brake, a device that has been utilized for centuries to assess the performance of engines and motors. The prony brake operates on a simple principle: it applies a controlled load to the rotating shaft of a machine, allowing engineers to calculate the torque produced by the engine. This is particularly important in the development and testing phases of mechanical engineering, where precise measurements are crucial. Historically, the prony brake was invented by the French engineer Henri Prony in the early 19th century. Its design consists of a brake drum attached to the engine's shaft, with a series of levers and weights that can be adjusted to apply varying amounts of resistance. As the engine runs, the friction between the brake and the drum generates heat, which must be managed to prevent damage to the equipment. One of the key advantages of using a prony brake is its simplicity and effectiveness. Unlike more modern electronic measurement devices, the prony brake does not rely on complex sensors or software. Instead, it provides a direct mechanical means to measure power output, making it an excellent educational tool for students learning about physics and engineering principles. In practical applications, the prony brake is often used in laboratories and workshops to test internal combustion engines, electric motors, and other types of machinery. By measuring the torque and rotational speed, engineers can determine the power output of a machine and identify any inefficiencies or areas for improvement. This information is invaluable when designing new products or optimizing existing ones. However, while the prony brake is a useful tool, it also has its limitations. The friction generated can lead to wear and tear on the components, and the heat produced must be dissipated effectively to avoid damaging both the brake and the engine being tested. Additionally, the prony brake may not provide the level of precision that some modern digital devices offer, which can be a drawback in highly specialized applications. In conclusion, the prony brake remains an important device in the field of mechanical engineering. Its historical significance and practical application provide valuable insights into the workings of engines and machinery. As technology continues to evolve, the prony brake serves as a reminder of the fundamental principles of torque and power, illustrating how simple mechanical devices can still play a vital role in modern engineering practices.

机械系统的研究往往需要理解各种测量扭矩和功率的方法。其中一种方法就是使用prony brake，这种设备已经被用于几个世纪，以评估发动机和电动机的性能。prony brake的工作原理很简单：它在机器旋转轴上施加一个可控负载，从而允许工程师计算发动机产生的扭矩。这在机械工程的开发和测试阶段尤为重要，因为精确的测量至关重要。历史上，prony brake是由法国工程师亨利·普罗尼在19世纪初发明的。它的设计包括一个连接到发动机轴的刹车鼓，具有一系列可以调节的杠杆和重量，以施加不同程度的阻力。当发动机运行时，刹车与鼓之间的摩擦会产生热量，这必须得到管理以防止设备损坏。使用prony brake的一个主要优点是其简单性和有效性。与更现代的电子测量设备不同，prony brake不依赖复杂的传感器或软件。相反，它提供了一种直接的机械手段来测量功率输出，使其成为学生学习物理和工程原理的绝佳教育工具。在实际应用中，prony brake常用于实验室和车间，以测试内燃机、电动机和其他类型的机械。通过测量扭矩和转速，工程师可以确定机器的功率输出，并识别任何低效或改进的领域。这些信息在设计新产品或优化现有产品时是非常宝贵的。然而，尽管prony brake是一个有用的工具，但它也有其局限性。产生的摩擦可能导致部件磨损，产生的热量必须有效散发，以避免损坏刹车和被测试的发动机。此外，prony brake可能无法提供某些现代数字设备所提供的精度，这在高度专业化的应用中可能是一个缺点。总之，prony brake在机械工程领域仍然是一个重要的设备。它的历史意义和实际应用为我们提供了对发动机和机械工作原理的宝贵见解。随着技术的不断发展，prony brake提醒我们扭矩和功率的基本原理，说明简单的机械设备仍然可以在现代工程实践中发挥重要作用。