Estudo de durabilidade de rolamentos de roda baseado em rotas brasileiras / Durability study of wheel bearings, based on Brazilian route data

AUTOR(ES)

Edson Lelis Fescina

DATA DE PUBLICAÇÃO

2010

RESUMO

The present work has the objective of defining a load model to estimate the life of wheel bearing, suitable to the conditions of roads in Brazil. A comparative analysis of models of the routes currently available in the literature and practice was conducted and the effect of their loads on the bearing life was analised. A composition of loads extracted from the actual conditions of route was proposed to define the national route. To get the actual loads the data were measured by strain gages fixed in the wheel bearing and the strut body, and also by an accelerometer sensor fixed in the gravity center of the vehicle, circulating in a route used for vehicle durability test in Brazil. The loads were analyzed and compared with the loads previously proposed. After that, a more appropriate load model was adopted to calculate the durability of the bearing for the real conditions of the Brazilian roads

ASSUNTO(S)

rolamentos durabilidade (engenharia) automóveis - rodas bearing durability (engineering) automobiles

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