Data · dataset · 2026
Effect of Voltage Frequency on the Formation of Electric Damage on Bearing Outer Race
Listed in ScienceDB
Electrical erosion in high-frequency alternating current (AC) electric fields is the main failure mode of traction motor bearings in fields such as new-energy vehicles.
Description
The electrical damage on the outer race of bearings was produced from direct current (DC) to 1 MHz AC condition. The average friction coefficient increased from 0.019 to 0.097 and then decreased to 0.052.
The equivalent contact resistance decreased to its minimum at 0.99 Ω then rose to 2.6 Ω. Three electric erosion morphologies were observed: pitting under DC and low frequency, fluting under resonance frequency (1 kHz) and frosting under high frequency. It was speculated that the frequency may affect the number of charge-discharge cycles of the bearing capacitance.
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This further affected the energy density of the bearing breakdown together with the current density, ultimately affecting the morphology of electrical corrosion.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.39285 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.39285 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |