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http://dx.doi.org/10.7467/KSAE.2012.20.4.133

Fatigue Analysis of Bike Brake under Nonuniform Load  

Cho, Ja-Eung (Department of Mechanical & Automotive Engineering, Kongju National University)
Han, Moon-Sik (Department of Mechanical & Automotive Engineering, Keimyung University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.4, 2012 , pp. 133-141 More about this Journal
Abstract
This study investigates structural and fatigue analyses of bike brake. Maximum equivalent stress of the model of mountain bike is 4 times as much as the model of general bike at static analysis. In cases of mountain and general bikes, maximum damage frequency at load of 'SAE bracket history' with the severest change of load becomes as much as 16 times than the most stable load of 'Sample history' among the nonuniform fatigue loads. In case of mountain bike, the possibility of maximum damage becomes 3% at the load of 'Sample history' with the average stress of 0 to $-3{\times}10^4$MPa and the amplitude stress of 0 to $10^4$MPa. In case of general bike, the possibility of maximum damage becomes 3% at the load of 'Sample history' with the average stress of 0 to $-0.8{\times}10^4$MPa and the amplitude stress of 0 to $0.2{\times}10^4$MPa. This stress state can be shown as 5 to 6 times more than the damage possibility of 'SAE bracket history' or 'SAE transmission'. The analysis result of this study can be effectively utilized for the safe design of bike brake.
Keywords
Bike brake; Mountain bike; General bike; Nonuniform fatigue loads; Fatigue life; Fatigue damage; Damage frequency;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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