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Modeling extreme loads acting on steering components using driving events

Roza Maghsood (Institutionen för matematiska vetenskaper, matematisk statistik) ; Igor Rychlik (Institutionen för matematiska vetenskaper, matematisk statistik) ; Jonas Wallin (Institutionen för matematiska vetenskaper, matematisk statistik)
Probabilistic Engineering Mechanics (0266-8920). Vol. 41 (2015), p. 13-20.
[Artikel, refereegranskad vetenskaplig]

Forces during steering events, such as curves and maneuvers, cause large stresses on steering components. In this paper, we formulate a model for the lateral loads causing fatigue damage of the steering components. Steering events are identified using a Hidden Markov model on the CAN (Controller Area Network) bus data. The CAN data is available on all vehicles, thus the model is applicable across many types of vehicles. To identify the events, the observation from CAN data is modeled by a multivariate generalized Laplace (GAL) distribution. An explicit formula for the expected fatigue damage is given. Results are validated using measured lateral acceleration.

Nyckelord: Fatigue damage index, Hidden Markov models (HMMs), Laplace distribution, Rainflow cycles, Vehicle, MARKOV, ALGORITHM, CYCLES, Engineering, Mechanical, Mechanics, Statistics & Probability.

Denna post skapades 2015-10-26.
CPL Pubid: 224809


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Institutioner (Chalmers)

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


Matematisk statistik

Chalmers infrastruktur