Analysis of a two-stage flywheel unit for automobile braking energy recovery

doi:10.12028/j.issn.2095-4239.2019.0008

Energy Storage Science and Technology ›› 2019, Vol. 8 ›› Issue (3): 567-574.doi: 10.12028/j.issn.2095-4239.2019.0008

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Analysis of a two-stage flywheel unit for automobile braking energy recovery

ZHAO Xiaoting, CHU Jiangwei, YUAN Shankun, GUAN Xiangyuan

College of traffc and transportation, Northeast Forestry University, Harbin 150040, Heilongjiang, China

Received:2019-01-23 Revised:2019-02-22 Online:2019-05-01 Published:2019-05-01

Abstract

Abstract: This paper proposes a two-stage flywheel energy storage device based on the conventional one-stage flywheel configuration. It was found that, for a given energy storage capacity, the twostage device could have a lighter mass and a smaller volume. Based on the above, a 10th order modal analysis and an equivalent stress analysis were carried out on the flywheel rotor system in an Ansys software environment. The simulation results showed no resonance to the modified flywheel rotor system, meeting the strength requirements.

Key words: braking energy, two-stage flywheel, fnite element method, modal analysis

CLC Number:

TM619

ZHAO Xiaoting, CHU Jiangwei, YUAN Shankun, GUAN Xiangyuan. Analysis of a two-stage flywheel unit for automobile braking energy recovery[J]. Energy Storage Science and Technology, 2019, 8(3): 567-574.

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Analysis of a two-stage flywheel unit for automobile braking energy recovery

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