Numerical and experimental analysis of vibrations in a three-phase linear switched reluctance actuator
Type
bookPart
Publisher
Identifier
SALVADO, J.A.C.; CALADO, M.R.A; ESPIRÍTO-SANTO, A.E.V. (2020) - Numerical and experimental analysis of vibrations in a three-phase linear switched reluctance actuator. In ARAÚJO, R.E.; CAMACHO, J.R. eds - Modelling and Control of Switched Reluctance Machines. London; Rijeka: IntechOpen. ISBN 978-1-78984-455-9. 1-33 p.
978-1-78984-455-9
10.5772/intechopen.89214
Title
Numerical and experimental analysis of vibrations in a three-phase linear switched reluctance actuator
Subject
Linear switched reluctance drives
Force ripple
Vibrations
Acoustic noise
Numerical analysis
Operational modal responses
Hybrid spectrum
Force ripple
Vibrations
Acoustic noise
Numerical analysis
Operational modal responses
Hybrid spectrum
Date
2020-12-04T15:24:47Z
2020-12-04T15:24:47Z
2020-09-09
2020-12-04T15:24:47Z
2020-09-09
Description
This chapter focuses on the analysis and characterization of the vibrations produced by switched reluctance actuators. The emphasis stands on the linear configuration of this type of machine. The complexity of the mechanical system and the
materials is used to define the modal frequencies. Moreover, the power controller
topology, the excitation regimes, and the switching frequency used for the actuator
operation can excite the natural modes and put restrictions on its usage. The analysis
considers both numerical and experimental methodologies. The numerical technique
relies on the finite element method (FEM) using the 3D model of the actuator to find
its natural frequencies up to 1.3 kHz. The experimental characterization counts on
the operational modal responses and the acoustic noise emitted. We identify the
regions of interest to measure the local accelerations and collect data for postprocessing and record the audible noise emitted for signal analysis. The popular
discrete Fourier transform and the joint wavelet-Fourier analysis are used for signal
analysis. The reliability and the suitability of this approach are verified comparing
both the numerical and the experimental outcomes and support the identification of
the switching frequencies with high potential to excite the natural modes under the
regular operation of the machine and to choose the proper control strategy.
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/publishedVersion
Access restrictions
openAccess
http://creativecommons.org/licenses/by-nc/4.0/
http://creativecommons.org/licenses/by-nc/4.0/
Language
eng
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