Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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THE JUSTIFICATION OF METHODS OF FATIGUE LIFE ESTIMATION FOR VEHICLE SUSPENSION’S PARTS

Ogorodnov S.M. 1 Zezulin D.V. 1 Makarov V.S. 1 Tumasov A.V. 1
1 Nizhny Novgorod State Technical University n.a. R. E. Alekseev
The paper contains the analysis of different scientific studies that are related with the problem of estimation of vehicles ride. There are some proposals for the method of generating of road surface disturbing action for the fatigue life estimation of light commercial vehicles suspensions. There is the description of justification of the vehicle simulation model and moving conditions that are close to the actual operating conditions. The analysis of road surface disturbing transmitted to vehicle’s wheel in dependence of micro and macro road profile is presented. It is shown that the micro road profile could be fully described by using of correlation function or spectral density of distortion. The algorithm of loading history forming for the vehicle’s suspension parts is described as well as further ways of research development are indicated.