시 변화 물림 강성도와 베어링 유연도를 고려한 기어-로터의 위험 속도 시뮬레이션

• 영문명: A Simulation for the Critical Speeds of a Geared Rotor System with Time Varying Mesh Stiffnesses and Bearing Flexibilities.
• 발행기관: 한국시뮬레이션학회
• 저자명: 최명진(Myung-Jin Choi) 박성환(Sung-Hwan Park)
• 간행물 정보: 『한국시뮬레이션학회 논문지』제8권 제3호, 39~48쪽, 전체 10쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 1999.09.30

영문 초록

A finite element model of a geared rotor system with flexible bearings were used to simulate the critical speeds and to investigate the effects of bearing coefficients on the dynamic behaviors of the system. The finite element model includes the effects of tooth mesh stiffness, gyroscopic moment, rotary inertia, shear, and torque of the shaft. The gear mesh was modelled as a pair of rigid disks connected by a spring of time varying stiffness. The time varying mesh stiffness results in the abrupt change of the critical speeds of spur geared systems. As the bearing stiffness increases, critical speeds increase rapidly in case of stiff shafts, compared with flexible shafts.

목차

1. 서론

2. 시 변화 물림 강성도

3. 유한요소 모델

4. 해석 결과 및 고찰

5. 결론

참고문헌