Rotating systems accumulate a substantial quantity of kinetic energy while in operation, however, it is arduous to extract that energy when the transduction mechanism is embedded in the rotating body. In this paper, it is proposed that the use of a pendulum system attached to an electromagnetic generator, can be an efficient solution to extract the kinetic energy from rotating systems. Three pendulum systems are experimentally tested: simple pendulum, double pendulum and Rott’s pendulum. The harvester can be used for rotating elements such as car’s wheel, where tire pressure monitoring systems (TPMS) can benefit from such harvester. An experimental set up is developed to emulate a commercial car’s wheel rotating at constant and variable speeds. The three pendulums are tested first under various constant rotation speeds. It is experimentally observed that the systems undergoes three different dynamic regimes depending on the rotation speed. An analytical model is also developed for the three proposed pendulums in order to compare the experimental results with the one obtained numerically. For constant rotation speed, the double pendulum showed the best performance, with a peak power of 9.5 mW at 89 rpm. For a variable speed of the disk, using different initial positions of the disk for each pendulum, the RMS values of the generated power showed that the double pendulum gives better performance for a majority of the tested initial conditions.

旋转系统在运行时会积累大量的动能，然而，当转换机构嵌入旋转体时，很难提取这些能量。在本文中，建议使用连接到电磁发电机的钟摆系统，可以成为从旋转系统中提取动能的有效解决方案。实验测试了三个摆系统：单摆、双摆和罗特摆。收割机可用于汽车车轮等旋转元件，轮胎压力监测系统 (TPMS) 可以从此类收割机中受益。开发了一个实验装置来模拟商用车的车轮以恒定和可变速度旋转。首先在各种恒定转速下对三个摆进行测试。实验观察到，系统根据转速经历三种不同的动态状态。还为三个提出的摆建立了一个分析模型，以便将实验结果与数值获得的结果进行比较。对于恒定转速，双摆表现出最佳性能，在 89 rpm 时峰值功率为 9.5 mW。对于可变速度的磁盘，为每个摆使用不同的磁盘初始位置，生成功率的 RMS 值表明双摆在大多数测试的初始条件下提供更好的性能。还为三个提出的摆建立了一个分析模型，以便将实验结果与数值获得的结果进行比较。对于恒定转速，双摆表现出最佳性能，在 89 rpm 时峰值功率为 9.5 mW。对于可变速度的磁盘，为每个摆使用不同的磁盘初始位置，生成功率的 RMS 值表明双摆在大多数测试的初始条件下提供更好的性能。还为三个提出的摆建立了一个分析模型，以便将实验结果与数值获得的结果进行比较。对于恒定转速，双摆表现出最佳性能，在 89 rpm 时峰值功率为 9.5 mW。对于可变速度的磁盘，为每个摆使用不同的磁盘初始位置，生成功率的 RMS 值表明双摆在大多数测试的初始条件下提供更好的性能。