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

点击翻译按钮获取中文摘要

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.