접촉 위치에 따른 에스컬레이터용 스텝 롤러의 기계역학적 거동에 관한 연구

다국어 초록 (Multilingual Abstract)

An escalator which is widely used for step ascending system recently is operated by rotating chain below the escalator step connected with the sprocket which is located in upper part of the escalator. When the chain rotates, the sprocket wheel actually contacts with the step roller made of elastic urethane. As more people ride escalator or the rise of escalator gets higher, the larger reaction force is applied on a step roller which contacts with sprocket. Therefore, we must analyze the load condition and the appropriate rise of the escalator in which a step roller can sustain. So, in this study we got the vertical displacement on the contact surface of the step roller from the experiment of the roller contacting with a sprocket wheel, and compared it with that obtained from the nonlinear contact analysis. Then we analyze the stress of the step roller with respect to the change of the contacting area between a step roller and a sprocket wheel.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. Hertz 접촉이론
• 3. 접촉 시험
• 4. 유한요소해석
• 4.1 스텝 롤러의 접촉모델
• 4.2 하중 및 경계조건
• 4.3 재료의 기계적 특성
• 5. 결과 및 고찰
• 5.1 유한요소해석결과와 시험결과의 비교
• 5.2 동일 하중 작용시 두 접촉 모델의 비교
• 5.3 스프라켓과의 접촉폭 변화에 따른 스텝롤러의 최대 상당응력 및 처짐 분석
• 6. 결론
• References

참고문헌 (Reference)

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2 S. P. Timoshenko, "Theory of Elasticity" McGRAW-HILL 403-420, 1987

3 KS B 6896, "Step Roller for Escalator"

4 T. Moro, "Reliability analysis of a mechanical contact between deformable solids" 17 : 227-232, 2002

5 R. L. Norton, "MACHINE DESIGN" Prentice-Hall 219-259, 1995

6 C. J. Park, "Dynamic Characteristics Analysis of an Escalator Using a Computer Model" 16 (16): 95-101, 1999

7 J. R. Barber, "Contact mechanism" 37 : 29-43, 2000

8 김진수, "ADAMS/ANSYS를 이용한 다관절 소방 파괴 방수차의 설계에 관한 연구" 한국기계기술학회 15 (15): 199-204, 2013

9 C. J. Park, "A Study on the Ride Improvement of an Escalator Using Flexible Body Dynamics Model" 17 (17): 135-142, 2000