Shock and Vibration Testing of an AMB Supported Energy Storage Flywheel

Hawkins, Lawrence A.; Murphy, Brian T.; Zierer, Joseph; Hayes, Richard

doi:10.1299/jsmec.46.429

Cited by 17 publications

(6 citation statements)

References 3 publications

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“…It consists of a rotor fully levitated by magnetic bearings and enclosed by a housing 3 . The housing is mounted in a gimbal 2 . The gimbal is installed in two frames.…”

Section: Test Rig Designmentioning

confidence: 99%

Magnetically suspended flywheel in gimbal mount - Test bench design and experimental validation

Dagnæs-Hansen

Santos

2019

Journal of Sound and Vibration

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“…It consists of a rotor fully levitated by magnetic bearings and enclosed by a housing 3 . The housing is mounted in a gimbal 2 . The gimbal is installed in two frames.…”

Section: Test Rig Designmentioning

confidence: 99%

Magnetically suspended flywheel in gimbal mount - Test bench design and experimental validation

Dagnæs-Hansen

Santos

2019

Journal of Sound and Vibration

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“…This is a base vibration of fixed ampli tude so the worst-case condition for each frequency range occurs at the highest frequency in the range (10, 15. and 25 Hz) since that is where the maximum acceleration occurs. If the magnetic bearings could be made stiff enough such that the lowest natural frequency is well above the excitation fre quency, then the rotor motion would closely approximate the housing motion [3], In this case, the additional load capacity needed to meet the vibration requirements would simply be the apparent rotor weight associated with the maximum acceleration from Table 1. For example, with the base vibration of 0.150 in.…”

Section: External Vibration Analysis (Mil-std-167)mentioning

confidence: 99%

Test Results and Analytical Predictions for MIL-STD-167 Vibration Testing of a Direct Drive Compressor Supported on Magnetic Bearings

Hawkins¹,

Khatri²,

Nambiar

2015

Journal of Engineering for Gas Turbines and Power

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External vibration testing was performed on a semihermetic, direct drive compressor on magnetic bearings intended for U.S. Navy Shipboard use. The compressor was placed on a U.S. Navy MIL-STD-167 shaker platform and driven at sinusoidal frequencies from 4 to 33 Hz at graduated displacements equal to a maximum of 1.5 Gs. During the machine design phase, a linear forced response analysis of the coupled rotordynamic system model of the rotor, housing, and magnetic bearings was performed to predict rotorlhousing dis placements and actuator loads. The results were used to guide bearing sizing and control algorithm design. The measured rotor motion and actuator currents correlated well with predictions at all tested frequencies, amplitudes, and orientations. Analysis methodology, test results, and comparisons are reported here.

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“…The loads and requirements for the flywheel bearings are rather high and it is an ambitious goal to use conventional rolling element bearings in such a device. But magnetic bearings are a complex alternative that require significant constructive and financial effort [5] and therefore make it more difficult for flywheels to enter the market. The following criteria needed to be fulfilled by the rolling element bearings chosen for the proposed design: The loads on the bearings were investigated using analytic and numeric methods.…”

Section: • High Energy Contentmentioning

confidence: 99%

Optimal system design and ideal application of flywheel energy storage systems for vehicles

Buchroithner

Andrasec

Bäder

2012

2012 IEEE International Energy Conference and Exhibition (ENERGYCON)

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Even though the r&d activities in the field of energy storage are currently being pushed all over the globe, the results are still far from satisfactory. This paper describes how the benefits of flywheel energy storage systems (FESS) can be exploited even though some properties still need to be improved significantly in the near future.Within a research project at the Graz University of Technology an FESS for application in vehicles serving urban public transportation (UPT) was investigated. The systematic design process and the problems of the proposed topology are discussed. Finally, solutions are suggested, which allow the maximum exploitation of the properties of kinetic energy storage. These recommended solutions do not only affect the flywheel design itself, but also its mode of application. This means that a holistic approach was chosen, which takes into account the whole supersystem of the flywheel hybrid vehicle.Index Terms-Automotive engineering, energy storage, flywheel, hybrid vehicles, methods of development, research and development management.

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Shock and Vibration Testing of an AMB Supported Energy Storage Flywheel

Cited by 17 publications

References 3 publications

Magnetically suspended flywheel in gimbal mount - Test bench design and experimental validation

Magnetically suspended flywheel in gimbal mount - Test bench design and experimental validation

Test Results and Analytical Predictions for MIL-STD-167 Vibration Testing of a Direct Drive Compressor Supported on Magnetic Bearings

Optimal system design and ideal application of flywheel energy storage systems for vehicles

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