• Title/Summary/Keyword: Pedal

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Structural and Fatigue Analysis on Bicycle Pedal (자전거 페달에 대한 구조 및 피로 해석)

  • Han, Moon-Sik;Cho, Jae-Ung
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.21 no.1
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    • pp.51-57
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    • 2012
  • This study investigates structural and fatigue analyses at bicycle pedal. Maximum deformation at model 1 is 2 times as much as model 2 at static analysis. Models 1 and 2 have the possibility of the weakest strength at the part of contact with chain gear. Among the cases of nonuniform fatigue loads at Models 1 and 2, 'SAE bracket history' with the severest change of load becomes most unstable but 'Sample history' becomes most stable. In case of 'Sample history' with the average stress of 0 to $-10^4$ MPa and the amplitude stress of 0 to $10^4$ MPa, the possibility of maximum damage becomes 4%. This stress state can be shown with 5 to 7 times more than the damage possibility of 'SAE bracket history' or 'SAE transmission'. The analysis result of this study can be effectively utilized with the safe design of pedal.

A Convergence Study through Structural Analysis for Lightweight of Brake Pedal for Racing Spec Installed with Balance Bar (밸런스 바가 장착된 레이싱 스펙 브레이크 페달의 경량화 구조 해석을 통한 융합연구)

  • Oh, Bum-Suk;Cho, Jae-Ung
    • Journal of the Korea Convergence Society
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    • v.10 no.10
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    • pp.123-128
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    • 2019
  • The structural analysis for light weight on the brake pedal of the racing spec installed with the balance bars of the four models were performed in this study. By utilizing two materials of steels and aluminum alloys, four shapes were analyzed. It is generally assumed that the magnitude of force a person may incur when riding in a car is 1000 N. The fixed points are designated as the parts at which the bolts and pedals are fixed and the mounting part of the balance bar applied by the stress transmitted through the rod when the pressure of the master cylinder rises and the operation stops. Through this analysis study, it is thought that the vulnerability of each brake pedal model can be investigated and the transmission efficiency of the brake pedal can be increased by light weight. As the design data with the durability of brake pedal obtained on the basis of this study result are utilized, the esthetic sense can be shown by being grafted onto the part of car at real life.

AN ESTIMATE OF THE AREA OF CONSTANT BREADTH CURVES

  • Chai, Y.D.;Kim, Yong-Il
    • Communications of the Korean Mathematical Society
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    • v.12 no.3
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    • pp.679-683
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    • 1997
  • We obtain new upper bound of the area of a constant breath curve. We estimate the area of a constant breadth curve in terms of its breadth and minimal radius and the arc length of its pedal curve.

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Automatic brake control system (자동 브레이크 제어장치)

  • 하정용
    • Journal of the korean Society of Automotive Engineers
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    • v.11 no.6
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    • pp.17-23
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    • 1989
  • 자동 Brake제어장치(ABCS)는 정차중에는 brake pedal을 놓아도 되고 gear 중립시에는 clutch pedal까지 놓아도 제동력이 계속 되므로 휴식할 수 있으며 출발시에는 전후진, 상하경사에 관계없이 쉽게 출발하므로 자동차 문화에서 혁신적인 발명품이라 할 수 있을 것이다.

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