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정태은(Taeeun Chung),전병희(Byunghee Jeon),김학준(Hakjun Kim) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Winding simulation for first coiling of filament wires were conducted to establish manufacturing technologies of tungsten filaments for automotive lighting. Natural frequencies and natural modes of rotational axis at 36,000 revolution/minute were calculated to avoid resonance. First coiling process was modeled by nonlinear contact problem and the finite element method was used to solved this problem and consider parameters on manufacturing processes. It is important to maintain equal pitch for continuous filament wires because life time of lighting depends on uniform pitch.