A compact vibratory bowl feeder system is proposed to transport lightweight annular film components. Vibration analysis was conducted to calculate its natural frequencies, and the motion characteristics of the bowl and transported parts were analyzed under resonance excitation at varying supply voltage levels. The natural frequencies of the proposed system were found to be 157Hz, 249Hz, and 505Hz. At these resonance frequencies, significant rotational vibrations occurred, while vertical vibrations were relatively small. Especially at 505Hz, bending of the leaf spring caused large rotational motion of the bowl. The part feeding speed increased linearly with the applied voltage, reaching 4mm/sec at 100V and 18mm/sec at 200V. At 157Hz and 249Hz excitation frequencies, large rotational and vertical vibrations were observed, respectively. Under rotational vibration, the parts moved forward via jumping motion when the bowl's velocity amplitude was relatively large, or via slipping when smaller. Minor backward slipping was also observed. Under vertical vibration, parts exhibited forward jumping motion without back-and-forth slipping.

Abstract
1. 서 론
2. 진동형 볼피더 모 델링
    2.1 볼피더 운동 모 델
    2.2 부품이송 운동 모 델
    2.3 볼피더 고유 진동 모 델
    2.4 가진력 모 델
3. 설계 파라미터 및 모 델 해석
4. 결과 및 고찰
5. 결 론
References

• 양영수(Dept. of Mechanical Engineering, Chonnam National University) | Young-Soo Yang
• 배강열(School of Mechatronics Engineering, Gyeongsang National University) | Kang-Yul Bae Corresponding author