1566 KB23 KB199920252013Ho, Jee-HouLim, Ying PioOoi, Jong BoonTan, ChingSeongWang, XinWong, Kok-Cheongštevilka:10letnik:59str. 613-619, SI 119ISSN:0039-2480COBISSID:13160987URN:URN:NBN:SI:doc-3SQXX3OWenAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikfinite element analysisfinite element methodmetoda končnih elementovmetoda Taguchiparametric optimizationparametrična optimizacijaportal axleportalne premeshaft designvotle gredizasnova eksperimentazasnova grediParametric optimization of the output shaft of a portal axle using finite element analysis|A portal axle unit is a gearbox unit installed on a vehicle for higher ground clearance and driving in off-road conditions. Shafts must be exceptionally tough and light to improve the overall performance of the portal axle unit. In this paper, a hollow shaft with a rib at both ends was proposed. The torsional stress of the three-dimensional shaft model was determined using finite element analysis (FEA) and validated by experimental testing. The hollow shaft thickness, rib thickness, depth of spokes, rib fillet radius, and number of spokes are the five of parameters considered in the torsional strength analysis of the rib. A Taguchi orthogonal array (L25) was applied to determine the optimum set of parameters for the proposed shaft. The strength and weight of the optimized model were calculated and compared to the solid shaft, hollow shaft, and proposed model. The optimized model showed improvement in torsional strength with a slight increase in weight compared to the benchmark modelTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo