Browse > Article
http://dx.doi.org/10.14775/ksmpe.2013.12.6.093

Development Process of Monocoque Frame for Hybrid Bicycle using Bolt Fastening  

Lee, In-Chul (Dept. of Mechanical Engineering, Inha Univ.)
Jang, Dong-Hwan (Dept. of Mechanical Design, Inha Technical College)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.12, no.6, 2013 , pp. 93-100 More about this Journal
Abstract
This paper presents the development process for a bicycle monocoque frame using bolt fastening. Traditionally, bicycle frames have been constructed with metal tubes joined at their ends by welding. These frames have been brazed or soldered onto metal lugs, forming the frame. Because stress loads become greatest at the joint of the bicycle tube frame, joint construction strongly influences frame design and construction. To avoid the inherent problems of material discontinuity at frame joints, numerous designers have attempted to reduce or eliminate the number of joints in tube frames. Nevertheless, the manufacture of high quality, reliable, one-piece and jointless frames has proven difficult and expensive. In this study, a new monocoque frame adapted to a hybrid bike is proposed. The advantage of the monocoque frame, is theat is has a rechargeable battery system that is built into the frame; as a result, the emotional quality for the customer is improved. In order to estimate the design compatibility compared with that of tube frames, structural analysis is performed using finite element method. A prototype based on a modified design has also been made and stability testing has been carried out.
Keywords
Monocoque Frame; Bicycle; FEM Anaysis; Stability Test; Bolt Fastening;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Liu, T. J-C. and Wu, H-C., "Fiber Direction and Stacking Sequence Design for Bicycle Frame made of Carbon/Epoxy Composite Laminate," Materials & Design, Vol. 31, pp. 1971-1980, 2010.   DOI   ScienceOn
2 Kwon, K. B. and Jeong, S. K., "A Study on the Test and Evaluation for Bicycle Frame," Korea Institute of Sport Science, 2007.
3 Cho, J. U. and Han, M. S., "Structrural Durability Analysis According to the Thickness of Bicycle Frame Tube", J. of KSMPE, Vol. 11, No. 3, pp. 122-129, 2012.
4 Lee, B. S., "Design and Manufacture of CFRP Pipe for Bicycle Frame," J. of KSPE, Vol. 20, No. 6, pp. 130-137, 2003.   과학기술학회마을
5 Reinforced Plastics, "Bike Frame Races Carbon Consumer Goods Forward ," July/August, 2003.
6 Lee, I. C, "A Study on the Development Process of Bike Monocoque for Assembly Improvement," Incheon University Master Thesis, 2011.
7 Kwon, K. B., Ahn, B. H., Kang, K. W. and Jeong, S. K., "The Specification Establishment of Bike Frame," Korea Institute of Sport Science, 2006.
8 Kang, D. M. and Ahn, S. M., "Collison Cahrateristics of an Adult Bicycle to a Car", J. of KSMPE, Vol. 11, No. 2, pp. 92-97, 2012.
9 Altair Eng., $HyperMesh^{TM}$, V9.0.
10 NASTRAN, $NASTRAN^{TM}$, Release 2010.
11 Korea Agency for Technology and Standards, http://www.standard.go.kr, 2008.
12 Larry, B. L., James, A. N. and Patrick, L. L., "Utilization of FEA in the Design of Composite Bicycle Frames," Composites, Vol. 26, No. 1, pp. 72-74, 1995.   DOI   ScienceOn