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http://dx.doi.org/10.3795/KSME-A.2013.37.8.1035

Study on Structural Integrity and Dynamic Characteristics of Knuckle Parts of KTX Anti-Roll Bar  

Jeon, Kwang Woo (Applied Technology Division, Korea Institute of Robot and Convergence)
Shin, Kwang Bok (Dept. of Mechanical Engineering, Hanbat Nat'l Univ.)
Kim, Jin Woo (Korea Railroad Corporation, Research Institute)
Jeong, Yeon Il (Korea Railroad Corporation, Research Institute)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.8, 2013 , pp. 1035-1041 More about this Journal
Abstract
To evaluate the structural integrity and dynamic characteristic of the knuckle part of a KTX anti-roll bar, an experimental and a numerical approach were used in this study. In the experimental approach, the acceleration and strain data for the knuckle parts of the KTX and KTX-SANCHUN anti-roll bar were respectively measured to evaluate and compare its structural dynamic characteristics under the operating environments of the Honam line. In the numerical approach, the evaluation of its structural integrity was conducted using LS-DYNA 3D, and then, the reliability of the finite element model used was ensured by a comparative evaluation with the experiment. The numerical results showed that the stress and velocity field of the knuckle part composed of a layered structure of a thin steel plate and rubber were more moderate than those of the knuckle part made of only a thick steel block owing to the reduction of relative contact between the knuckle and the connecting rod. It was found that the knuckle part made of a thin steel plate and rubber was recommended as the best solution to improve its structural integrity resulting from the elastic behavior of the KTX anti-roll bar being enabled under a repeating external force.
Keywords
Anti-Roll Bar; Elastic Knuckle; Rigid Knuckle; Structural Dynamic Characteristics; Surface Fatigue Wear;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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