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Structural Analysis on Control Arm of Automobile under Nonuniform Fatigue Load  

Cho, Jae-Ung (공주대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society of Mechanical Technology / v.13, no.3, 2011 , pp. 87-92 More about this Journal
Abstract
This study analyzes structural stress and fatigue on control arm of automobile under nonuniform load. Maximum equivalent stress at bolt part is shown with 419.1MPa and the corner is deformed with maximum displacement of 1.1628mm. Among 3 cases of nonuniform fatigue loads applying on control arm, '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 $-10^5MPa$ to $10^5MPa$ and the amplitude stress of 0 MPa to $10^5MPa$, the possibility of maximum damage becomes 3%. This stress state can be shown with 6 times more than the damage possibility of 'SAE bracket history' or 'SAE transmission'. Safety and durability on automobile can be effectively improved by applying the fatigue analysis result on control arm.
Keywords
Control arm; Nonuniform fatigue loads; Fatigue life; Fatigue damage; Damage frequency; Durability;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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