Abstract
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 model.
| Original language | English |
|---|---|
| Pages (from-to) | 613-619 |
| Number of pages | 7 |
| Journal | Strojniski Vestnik/Journal of Mechanical Engineering |
| Volume | 59 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
Keywords
- Finite element analysis
- Parametric optimization
- Portal axle
- Shaft design
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering