Exploring a Vibration Synthesis Process for the Acoustic Characterization of Electric Drives

Boesing, Matthias; Doncker, Rik W. De

doi:10.1109/tia.2011.2175469

Cited by 67 publications

(13 citation statements)

References 14 publications

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“…Samples of the operational deflections at the points marked by circles in Figure 7 are given in Figures 8-10, with a summary in Figure 11. The relationship between force excitation shape, frequency multiple, and dominant vibration mode shapes is further investigated in [10].…”

Section: Pmsmmentioning

confidence: 99%

Universal Acoustic Modeling Framework for Electrical Drives

Boesing

Hofmann

Doncker

2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

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This paper presents a universal acoustic modeling process for efficient, high-quality acoustic modeling of electrical drives. It combines the two fast and user-interactive steps system simulation and vibration synthesis. The underlying model parameters are obtained via automated offline finite-element simulations based on generic input parameters. This allows using complex electromagnetic and structural models without computation time becoming prohibitive. The approach can be applied to all types of machines, including outer rotor and transversal flux machines as well as machines with rotor or stator skew. Switching frequencies and spatial machine harmonics are routinely taken into account. Sound radiation or transfers path analyses can be added. Analytical or measured models can also be used. This makes it a universal acoustic modeling framework for electrical drives. Application examples are given for a permanent magnet synchronous machine traction drive for a hybrid electric vehicle as well as a for a switched reluctance auxiliary drive. Simulated run-up spectrograms for structure borne sound are validated against measurements and operational deflections are presented.

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Section: Pmsmmentioning

confidence: 99%

Universal Acoustic Modeling Framework for Electrical Drives

Boesing

Hofmann

Doncker

2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

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“…The AGSF is used to calculate equivalent distributed forces at the neutral fiber of the stator yoke [21] or on the tip of the stator teeth [29]. Several models have recently been proposed to compute from the AGSF the equivalent forces which applies to the neutral fiber [30,31].…”

Section: Introductionmentioning

confidence: 99%

Analytical study of air-gap surface force – application to electrical machines

Pile

Besnerais²,

Parent

et al. 2020

Open Physics

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The Maxwell stress tensor (MST) method is commonly used to accurately compute the global efforts, such as electromagnetic torque ripple and unbalanced electromagnetic forces in electrical machines. The MST has been extended to the estimation of local magnetic surface force for the vibroacoustic design of electrical machines under electromagnetic excitation. In particular, one common air-gap surface force (AGSF) method based on MST is to compute magnetic surface forces on a cylindrical shell in the air gap. However, the AGSF distribution depends on the radius of the cylindrical shell. The main contribution of this study is to demonstrate an analytic transfer law of the AGSF between the air gap and the stator bore radius. It allows us to quantify the error between the magnetic surface force calculated in the middle of the air gap and the magnetic force computed on the stator teeth. This study shows the strong influence of the transfer law on the computed tangential surface force distribution through numerical applications with induction and synchronous electrical machines. Finally, the surface force density at stator bore radius is more accurately estimated when applying the new transfer law on the AGSF.

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“…In particular, both electromagnetic and mechanical models have to be finely detailed to accurately compute the time and space distribution of the electromagnetic forces and the resulting vibration level of the machine's structure. Besides, for variable-speed machines such as traction machines, the simulation has to be performed for several points of the speed cycle to assert potential resonance issues between magnetic forces and structural modes of the machine [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Benchmark for Magnetic Noise and Vibrations Analysis in Electrical Machines

Devillers

Hecquet

Cimetiere

et al. 2018

2018 XIII International Conference on Electrical Machines (ICEM)

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This article presents an experimental setup dedicated to the analysis of magnetic noise and vibrations in radial flux electrical machines. Both electromagnetic excitation and structural response of the electrical machine are simplified to provide the first benchmark of the phenomenon of electromagnetically-excited noise and vibrations. The test bench properties as well as the magnetic, vibration and acoustic upcoming extensive measurements are shared to the scientific community, providing a clear reference case to compare different modeling and simulation approaches.

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Exploring a Vibration Synthesis Process for the Acoustic Characterization of Electric Drives

Cited by 67 publications

References 14 publications

Universal Acoustic Modeling Framework for Electrical Drives

Universal Acoustic Modeling Framework for Electrical Drives

Analytical study of air-gap surface force – application to electrical machines

Experimental Benchmark for Magnetic Noise and Vibrations Analysis in Electrical Machines

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