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A Study on Resonance Durability Analysis of Vehicle Suspension System  

이상범 (국민대학교 자동차공학 전문대학원)
한우섭 (GM 대우자동차㈜)
임홍재 (국민대학교 자동차공학 전문대학원)
Publication Information
The Journal of the Acoustical Society of Korea / v.22, no.6, 2003 , pp. 512-518 More about this Journal
Abstract
In this paper, resonance durability analysis is performed for the fatigue life assessment considering vibration effect of a vehicle system. In the resonance durability analysis, the frequency response and the dynamic load on frequency domain are used. Multi-body dynamic analysis, finite element analysis, and fatigue life prediction method are applied for the virtual durability assessment. To obtain the frequency response and the dynamic load history, the computer simulations running over typical pothole and Belgian road are carried out by utilizing vehicle dynamic model. The durability estimations on the rear suspension system of the passenger car are performed by using the resonance durability analysis technique and compared with the quasi-static durability analysis. The study shows that the fatigue life considering resonant frequency of vehicle system can be effectively estimated in early design stage.
Keywords
Durability assessment; Fatigue life; Multi-body dynamic analysis; Resonance durability analysis Quasi-static durability analysis; Suspension system; Vibration analysis;
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