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Load description and damage evaluation using vehicle independent driving events

Roza Maghsood (Institutionen för matematiska vetenskaper, matematisk statistik) ; Igor Rychlik (Institutionen för matematiska vetenskaper, matematisk statistik) ; P. Johannesson
Procedia Engineering. International Conference on Material and Component Performance under Variable Amplitude Loading, VAL 2015, Prague, Czech Republic, 23-26 March 2015 (1877-7058). Vol. 101 (2015), C, p. 268-276.
[Konferensbidrag, refereegranskat]

We consider the loads that are related to steering events, and focus on the events that cause high forces on steering components. The load is simplified by keeping the extreme force value for each driving event. We define a simplified stochastic model for the load by modeling the extreme value for each driving event by a random variable. We give formulas to compute the theoretical load spectrum and the expected fatigue damage caused by the driving events. Further, in a sensitivity study we investigate how much the expected damage depends on the variability of parameters of the proposed model.

Nyckelord: Fatigue damage index, Hidden Markov models, Markov chain, Rainflow cycles, Steering events, Vehicle independent load models



Denna post skapades 2015-04-10. Senast ändrad 2016-09-22.
CPL Pubid: 215094

 

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Institutioner (Chalmers)

Institutionen för matematiska vetenskaper, matematisk statistik (2005-2016)

Ämnesområden

Matematik

Chalmers infrastruktur