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박장수(Jangsoo Park),김흥섭(Heungseob Kim),부광석(Kwangsuck Boo) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The purpose of this paper is to compare with estimation of equivalent fatigue load in time domain and frequency domain. The fatigue analysis for random loads is discussed in several papers. In general, Equivalent fatigue load in time-domain is estimated by rainflow cycle counting. In case of frequency domain, it can estimate through probability density function of Dirlik`s method that directly use power spectrum density of stress. Probability density function of Dirlik`s method is function of spectral moment only. For verification of performance with two methods, simulations is performed with general random signal and FEM analysis.
박장수(Jangsoo Park),윤민섭(Minseob Yoon),김현수(Hyunsoo Kim),제우성(Wooseong Che),부광석(Kwangseok Boo),김흥섭(Heungseob Kim) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
The purpose of this paper is to compare with estimation of equivalent fatigue load in time domain and frequency domain. The fatigue analysis for random loads is discussed in several papers. In general, Equivalent fatigue load in time-domain is estimated by rainflow cycle counting. In case of frequency domain, it can estimate through probability density function of Dirlik’s method that directly use power spectrum density of stress. Probability density function of Dirlik’s method is function of spectral moment only. For verification of performance with two methods, simulations is performed with general random signal and FEM analysis.
박장수(Jangsoo Park),이재원(Jayone Lee),이성범(Seong Beom Lee),김흥섭(Heungseob Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The purpose of this paper is to compare with estimation of equivalent fatigue load in time domain and frequency domain. The fatigue analysis for random loads is discussed in several papers. In general, Equivalent fatigue load in time-domain is estimated by rainflow cycle counting. In case of frequency domain, it can estimate through probability density function of Dirlik`s method that directly use power spectrum density of stress. Probability density function of Dirlik`s method is function of spectral moment only. For verification of performance with two methods, simulations is performed with general random signal and FEM analysis.