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Stiffness and Fatigue Strength Analysis of Fuel Cell Vehicle Body Frame  

Choi, Bok-Lok (Department of Mechanical & Automotive Engineering, Gangneung-Wonju National University)
Kang, Sung-Jong (Department of Mechanical & Automotive Engineering, Catholic University of Daegu)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.19, no.4, 2011 , pp. 47-53 More about this Journal
Abstract
Firstly, FEM model for the body frame of a fuel cell vehicle was built up and design optimization results based on different schemes were exhibited. One scheme was to minimize weight while maintaining the normal mode frequencies and the other was to increase the frequencies without weight change. Next, for a rear frame model, shape parameter study on collapse characteristics such as peak resistance load and absorbed energy was carried out. Also, the stiffness of frame mounting brackets was predicted using inertance calculation and the durability of those mounting brackets for vehicle system loads was evaluated. Finally, for a representative mounting model, the influence on durability due to thickness change was analyzed.
Keywords
Fuel cell vehicle; Thickness optimization; Rear frame; Mounting bracket; Fatigue safety factor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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