Effect of manufacturing-induced carrier segment defects on torque ripple in coaxial magnetic gears
MEASUREMENT, cilt.283, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 283
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.measurement.2026.122117
- Dergi Adı: MEASUREMENT
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Ankara Üniversitesi Adresli: Evet
Özet
In this study, the effects of manufacturing-induced geometric deviations and process-related imperfections in the modulator segments on the performance of a coaxial magnetic gear were systematically investigated. An error-free reference model was established, and several fault scenarios representing realistic manufacturing defects that may occur in a single segment were defined. Both the reference and faulty configurations were analyzed using a three-dimensional finite-element method (FEM) implemented in Ansys Maxwell to evaluate magnetic flux distribution, average transmitted torque, torque ripple, and harmonic content. The results indicate that, while a symmetric magnetic flux distribution was achieved in the reference model, the fault scenarios led to localized flux irregularities within the magnetic circuit. The variation in average transmitted torque remained limited to approximately +/- 1%, suggesting that the rated torque transmission capability is relatively insensitive to localized segment-level imperfections. In contrast, the input-side torque ripple increased by up to 50% relative to the reference configuration. On the output side, however, torque ripple exhibited a more moderate variation, remaining within the range of 3.36% to 6.77%. Harmonic analyses further revealed that manufacturing deviations significantly increased the total harmonic distortion, particularly on the input side.