Mobile Flywheel Energy Storage Systems: Determining Rolling Element Bearing Loads to Expand Possibilities

Armin Buchroithner, Andreas Brandstatter, Manes Recheis

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Efficient energy storage is the key to modern hybrid or zero emission vehicles and low carbon mobility in general. Compared to conventional storage technologies like batteries, flywheel energy storage systems (FESSs) offer various theoretical advantages, such as high cycle life, no capacity fade over time, temperature independence, easy determination of state of charge, and complete recyclability. However, the special operating conditions of FESSs-such as vacuum, high rotational speeds, and high gyroscopic reactions, etc.-make bearing design a complex and crucial endeavor. This article describes methods of determining loads for rolling element bearings in automotive FESSs. An overview of FESS technology is given, followed by the discussion of an analytic, numeric, and empiric approach, including a detailed comparison of the different methods. Furthermore, the concept of a test bench investigating flywheel behavior in a resilient mount is described, and its results regarding the design of an FESS-tovehicle mount are discussed in depth.

Original languageEnglish
Article number7993067
Pages (from-to)83-94
Number of pages12
JournalIEEE Vehicular Technology Magazine
Volume12
Issue number3
DOIs
Publication statusPublished - 1 Sep 2017

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Bearings (structural)
Flywheels
Energy storage
Life cycle
Vacuum
Carbon

ASJC Scopus subject areas

  • Automotive Engineering

Cite this

Mobile Flywheel Energy Storage Systems : Determining Rolling Element Bearing Loads to Expand Possibilities. / Buchroithner, Armin; Brandstatter, Andreas; Recheis, Manes.

In: IEEE Vehicular Technology Magazine, Vol. 12, No. 3, 7993067, 01.09.2017, p. 83-94.

Research output: Contribution to journalArticleResearchpeer-review

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