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Reliability-Based Optimal Design of Pillar Sections Considering Fundamental Vibration Modes of Vehicle Body Structure  

Lee Sang Beom (국민대학교 자동차공학전문대학원)
Yim Hong Jae (국민대학교 자동차공학전문대학원)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.13, no.6, 2004 , pp. 107-113 More about this Journal
Abstract
This paper presents the pillar section optimization technique considering the reliability of the vehicle body structure consisted of complicated thin-walled panels. The response surface method is utilized to obtain the response surface models that describe the approximate performance functions representing the system characteristics on the section properties of the pillar and on the mass and the natural frequencies of the vehicle B.I.W. The reliability-based design optimization on the pillar sections Is performed and compared with the conventional deterministic optimization. The FORM is applied for the reliability analysis of the vehicle body structure. The developed optimization system is applied to the pillar section design considering the fundamental natural frequencies of passenger car body structure. By applying the proposed RBDO technique, it can be possible to optimize the pillar sections considering the reliability that engineers require.
Keywords
First-Order Reliability Method(FORM); Pillar Section; Response Surface Method(RSM); Reliability-Based Design Optimization(RBDO); Vibration Analysis; Vehicle Bo Structure;
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Times Cited By KSCI : 1  (Citation Analysis)
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