Fig. 2. Consumer bicycle purchase criteria.
Fig. 3. Consumer bicycle purchase reasons.
Fig. 1. double diamond of UK design council [6].
Fig. 4. Consumer bicycle price preference.
Fig. 5. interested person map.
Fig. 6. Service design in wordcloud.
Fig. 7. Photographs of damaged carbon frame and component as circle parts (a) Damage caused by spoke imbalance, (b) RIM node damage, (c) RIM node damage and (d) Carbonization by frictional heat.
Fig. 8. Designed CFRP CNT frame.
Fig. 9. The graph of Vibration attenuation test (a) Vibration attenuation test of CFRP CNT Frame, (b) Vibration attenuation test of normal CNT frame.
Fig. 10. The graph of frame tensile strength test results.
Fig. 11. The graph of frame compression test results.
Table 1 Frame fatigue test results (% of success)
Table 2 Frame compression test results
References
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- http://www.kidd.co.kr/news/204636.
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- K.B. Kwon and S.K. Cheong, "Fatigue characteristics of bicycle frames depending on types and materials", Journal of the Korean Society of Safety 32 (2017) 8.
- https://www.designcouncil.org.uk/news-opinion/designprocess-what-dou ble-diamond.
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