| 제목 |
구동모터의 슬리브 최적화를 통한 소음 진동 저감연구 |
| 분야 |
모빌리티 동력 및 구동시스템 |
| 언어 |
Korean |
| 저자 |
정재덕(BorgWarner DTC), 박선병(BorgWarner DTC), 정경태(Borgwarner) |
| Key Words |
Traction Motor(견인전동기), S-winding(연속와인딩), Optimization(최적화), Design of Experiments(실험계획법), Vibration(진동), Noise(소음) |
| 초록 |
This study investigates noise and vibration (NVH) reduction in electric traction motors employing continuous hairpin winding (S-winding) by optimizing the sleeve structure. While S-winding offers inherent NVH advantages due to the high slot count, further improvements are necessary. To address this, the sleeve—an element directly coupled with the stator and including the cooling channel—was simplified and modeled with varying rib configurations (one, two, and three ribs). Using Finite Element Method (FEM) simulations and Design of Experiments (DoE), the influence of sleeve thickness rib width and rib positions on NVH performance was analyzed across multiple operating points of the speed. Results consistently showed that sleeve thickness is the most significant factor affecting NVH, with both increased and decreased thickness from the baseline (4 mm) contributing to noise reduction. Rib positions also showed speed-dependent effects, while rib width had minimal impact. The findings suggest that structural optimization of the sleeve can effectively reduce motor noise without compromising electromagnetic performance, though trade-offs in durability and cooling efficiency must be considered. |
| 원문(PDF) |
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