Rotordynamics Study and Vibration Reduction of an External-Rotor Motor for Mechanical Energy Storage

总部位于魁北克市的快速发展的初创公司IngeniArts开发了一种用于工业升降机的高性能储能系统。他们的专利系统结合了动能存储和化学存储，以支持高要求的应用，如叉车和其他类型的起重设备。这种协同组合提供了快速响应能力和长时间的自主性。然而，机械能量存储，通常被称为飞轮，在系统中引入振动。虽然典型的电动马达振动已经被很好地理解，但关于IngeniArts具有高储能容量的特定配置的科学文献有限。该项目旨在了解飞轮在不同环境条件下的旋转动力学，并评估在某些情况下看到的高振动。将开发一个模型来评估预期的模态响应和振动幅值，并将用实验结果验证。该模型将允许评估有问题的振动条件，并提出设计修改以避免这些高振动。修改后的设计将被制作和测试，以评估所获得的振动。结果将使IngeniArts更好地了解他们的技术和飞轮的改进版本，这将导致更高的性能和更广泛的应用于IngeniArts的产品线。

IngeniArts, a fast-growing start-up based in Quebec City, has developed a high performance energy storagesystem for industrial lifts. Their patented system combines a kinetic energy storage to chemical storage tosupport highly demanding application such as forklift and other type of lifting devices. This synergeticcombination offers fast response capability together with long autonomy. The mechanical energy storage,referred typically as a flywheel, however introduces vibrations in the system. While typical electric motorvibrations are well understood, there is limited scientific literature on IngeniArts specific configuration withhigh energy storage capacity.This project aims at developing an understanding of the rotordynamics of the flywheel in differentenvironmental conditions, and assess the high vibration seen in some cases. A model will be developed toevaluate the modal response and vibration amplitudes expected, which will be validated with experimentalresults. This model will allow to evaluate problematic vibration conditions, and propose design modification toavoid those high vibrations. A revised design will be fabricated and tested to assess the vibrations obtained.The results will provide IngeniArts with a better understanding of their technology and an improved version oftheir flywheel, which will lead to higher performance and wider implementation of this system into IngeniArtsproduct line.