Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
권호 표지
DOI QR코드

DOI QR Code

A Convergence Study through Durability Analysis due to the Configuration of Automotive Frame Butted

자전거 프레임 버티드 형상에 따른 내구성 해석을 통한 융합연구

  • Choi, Gye-Gwang (Department of Metal Mold Design Engineering, Kongju national University) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju National University)
  • 최계광 (공주대학교 금형설계공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2018.08.09
  • Accepted : 2018.11.20
  • Published : 2018.11.28
Download PDF
⟨ Previous Next ⟩

Abstract

When the driver riding in a bicycle goes on board, the load of driver is shown differently according to the position loaded on the frame of bicycle. The load is applied most at the joint of bike frame and the load at the mid-part of frame is applied least than the other parts. So, the weight of frame is decreased as the part not applied with a lot of load is manufactured into the thin thickness. As the part applied with high load is manufactured into the thick thickness, it can be endured through this load. The configurations of general frame, double butted and triple butted were modelled by using CATIA program. The durabilities of each model due to the load of passenger were investigated by carrying the structural and fatigue analyses. As this study result investigated with the analysis program of ANSYS, the deformation of general frame happened most and that of triple butted became least. These simulation analysis data are intended to be used to design the actual bicycle frame in the most efficient way at design and manufacture.

자전거를 타는 운전자가 자전거를 탑승하게 되면 그 프레임에 실리게 되는 위치에 따라서 운전자의 하중이 다르게 나타난다. 자전거 프레임의 접합 부분에서 가장 많은 하중이 작용하게 되며, 프레임의 중간 부분에서 다른 부분 보다 하중이 적게 작용하게 된다. 그래서 자전거 하중이 많이 작용하지 않는 부분을 두께를 얇게 제작함으로서 프레임의 무게를 줄이고, 하중이 크게 작용하는 부분에는 두껍게 제작하여 하중을 잘 버틸수 있게 한다. CATIA 프로그램을 사용하여 일반 프레임, 더블 버티드, 트리플 버티드의 형상으로 모델링하였고, 구조해석 및 피로해석을 진행하여 탑승자의 하중에 의해 각각의 모델의 내구성을 검토하였다. ANSYS 해석 프로그램을 사용하여 확인하여 본 연구 결과로는 일반 프레임의 변형이 가장 많이 일어났고, 트리플 버티드의 변형이 가장 적었다. 이러한 시뮬레이션 해석 데이터를 사용하여 실제 자전거 프레임을 설계 및 제작 시에 가장 효율적인 방법으로 설계할 것으로 사료된다.

Keywords

OHHGBW_2018_v9n11_271_f0001.png 이미지

Fig. 1. Analysis model

OHHGBW_2018_v9n11_271_f0002.png 이미지

Fig. 4. Analysis conditions of models

OHHGBW_2018_v9n11_271_f0003.png 이미지

Fig. 5. Total deformation of models

OHHGBW_2018_v9n11_271_f0004.png 이미지

Fig. 6. Equivalent stress of models

OHHGBW_2018_v9n11_271_f0005.png 이미지

Fig. 7. Load histories at nonuniform fatigue loads

OHHGBW_2018_v9n11_271_f0006.png 이미지

Fig. 8. Contour plots of fatigue life at SAE bracket history

OHHGBW_2018_v9n11_271_f0007.png 이미지

Fig. 9. Contour plots of fatigue life at SAEtransmission

OHHGBW_2018_v9n11_271_f0008.png 이미지

Fig. 10. Contour plots of fatigue life at Sample history

OHHGBW_2018_v9n11_271_f0009.png 이미지

Fig. 2. Internal shape of models

References

  1. S. J. Han, S. U. Kim, J. H. Cho & K. C. Koo (2017). Ergonomic Evaluation of Indoor Bike Coordinated with Virtual Images. Journal of Digital Convergence, 15(5), 443-451. https://doi.org/10.14400/JDC.2017.15.5.443
  2. G. W. Hwang & J. U. Cho. (2017). Convergence Study on Durability Improvement due to Radius of Arch Type at CFRP Structure with Stacking Angle. Journal of the Korea Convergence Society, 8(7), 219-224. https://doi.org/10.15207/JKCS.2017.8.4.219
  3. J. W. Park. (2017). Structural Analysis of a Tractor Cabin Considering Structure Production Error. Journal of the Korea Convergence Society, 8(5), 155-160. https://doi.org/10.15207/JKCS.2017.8.1.155
  4. J. I. Lee. (2017). The Convergence Design for Stiffness and Structure Advancement of Automotive Body. Journal of the Korea Convergence Society, 8(4), 189-197. https://doi.org/10.15207/JKCS.2017.8.4.189
  5. M. K. Park & B. G. Lee. (2018). A Study on the Structural Analysis of the Spindle of Swiss Turn Type Lathe for Ultra Precision Convergence Machining. Journal of the Korea Convergence Society, 9(5), 145-150. https://doi.org/10.15207/JKCS.2018.9.5.145
  6. J. H. Lee & J. U. Cho (2016). Convergence Technique Study of Model Tie Rod End by Configuration through Simulation Analysis. Journal of the Korea Convergence Society, 7(1), 161-166. https://doi.org/10.15207/JKCS.2016.7.1.161
  7. J. L. Cui, M. H. Chey & S. I. Kim. (2015). Seismic Performance of Urban Structures with Various Horizontal Irregularities using Equivalent Static Analysis. Journal of Convergence for Information Technology, 6(1), 25-32. https://doi.org/10.22156/CS4SMB.2016.6.1.025
  8. J. H. Hyeon, Y. H. Moon & S. W. Ha. (2018). Development of Automation Software for Corner Radius Analysis of Composite Laminated Structure. Journal of Convergence for Information Technology, 8(3), 107-114. https://doi.org/10.22156/CS4SMB.2018.8.3.107
  9. J. U. Cho. (2015). Study on Convergence Technique through Structural Analysis on the Axle of Railway Vehicle. Journal of the Korea Convergence Society, 6(1), 93-101. https://doi.org/10.15207/JKCS.2015.6.1.093
  10. J. W. Park & E. D. Kim & J. U. Cho. (2018). Analysis Study on Influence that the Center Hole Notch of CFRP with Laminated Structure Affects. Journal of the Korea Convergence Society, 9(2), 323-329.
  11. C. H. Yoon & K. D. Choi. (2016). A Study on the Double Mediation Analysis in Structural Equating Models with Bootstrapping Using R. Journal of Digital Convergence, 14(9), 111-121. https://doi.org/10.14400/JDC.2016.14.9.111
  12. D. C. Lee & K. W. Kang. (2013). Quasi Static Fatigue Analysis of Spot Welding Component considering Change of Stiffness. Journal of the Korea Convergence Society, 4(2), 21-27. https://doi.org/10.15207/JKCS.2013.4.2.021
  13. C. S. Kim. (2017). Fatigue Analysis of the Welded Bogie Frame for Rolling Stock Considering Dynamic Effects. Journal of the Korean Society of Mechanical Technology, 19(1), 100-106. https://doi.org/10.17958/ksmt.19.1.201702.100
  14. B. S. Kong. (2003). A Study on Optimal Design and Fatigue Experiment by Parameters of the Shape for U-Rib in Orthotropic Steel Deck Bridge(I). Journal of the Korea Construction and Environment Association, 2(3), 111-121.
  15. S. J. Kim. (2006). Fatigue analysis of steel-girder bridges by reliability theory. Bulletin of the Marine Science Institute, 30(1), 59-66.