M. Namjoo, H. Golbakhshi,
Volume 4, Issue 3 (9-2014)
Abstract
The natural frequencies and mode shapes of pneumatic tires are predicted using a geometrically accurate,
three-dimensional finite element modeling. Tire rubber materials and cord layers are represented
independently using “shell element” available in COSMOS. The effects of some physical parameters such
as the inflation pressure tread pattern, thickness of belts and ply angles to the natural frequencies of tires are
investigated. By imposing equivalent centrifugal forces, the effect of translational speed on vibrating
behavior of the tire is also studied in this work. Comparisons of numerical and experimental results are
given to show the validity of the proposed model.
R. Hosseini, M. Azadi, , , ,
Volume 5, Issue 4 (12-2015)
Abstract
In the present paper, the modal analysis on a full finite element model of an off-road vehicle. This vehicle was modeled in the CATIA software and then meshed in the HYPERMESH software. The free vibration analysis was conducted by the ABAQUS software. By applying an external displacement, the forced vibration analysis was also performed. As a result, natural frequencies and shape modes were extracted to detect critical regions. Then, some improvements were suggested to have better vibration behavior of the vehicle.
