FEA Rotating Tire Modeling for Transient Response Simulations

Abstract

A full nonlinear finite element P185/70R14 passenger car radial-ply tire model was developed and run on a 1.7-meter-diameter spinning test drum. The virtual tire/drum/cleat finite element model was constructed and tested using the nonlinear finite element analysis software, PAM-SHOCK. The tire model was constructed in extreme detail with three-dimensional solid, layered membrane, and beam finite elements, incorporating over 18,000 nodes and 24 different types of materials. In addition to the tire model itself, the rim was also included and rotated with the tire, with proper mass and rotational inertial effects. The FFT algorithm was applied to examine the transient response information in the frequency domain. The result showed that this P185/70R14 tire has clear peaks of 84 and 45 Hz transmissibility in the vertical and longitudinal directions. Also the paper presents the prediction of tire standing waves phenomenon, and computer animations of the standing waves phenomenon were carried out for the first time. The effects of different tire inflation pressures and tire axle loadings were investigated with respect to their influences on the formation of standing waves. The parameters adopted in this FEA tire model were validated against experimental work and showed excellent agreement.

Multi-Wheeled Combat Vehicle Tire Modeling on Rigid and Soft Terrain

“…The determination of the tire in-plane free vibration modes was achieved by recording the reaction force of the tire axle at longitudinal and vertical directions when the tire rolling over a cleat on the road. The results were compared to more than ten previous studies and showed good agreement [6].…”

“…The second peak at approximately 46 Hz corresponds to the first vertical free vibration mode. The available experimental data for the first vertical free vibration mode for passenger cars tires lies in the range of 60-80 Hz [16].For the developed FEA off-road tire which has larger diameter and softer materials comparing to passenger car tires, its sidewalls will absorb more vibrations instead of transferring it to the tire center. So, it can be expected to have values lower than 60 Hz.…”

Modeling and Validation of a Passenger Car Tire Using Finite Element Analysis

“…C 10 and C 01 are the first (loading) and second (loading) Mooney-Rivlin law coefficients, respectively. Further details regarding the material selection and parameter identification can be found in the previous publication [28].…”