Transient Dynamic Characteristics of a Non-Pneumatic Mechanical Elastic Wheel Rolling Over a Ditch
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The transient dynamic characteristic of a tire, which has a significant effect on vehicle handling stability and ride comfort, is difficult to study in detail because of its highly non-linear behavior. In this study, the transient dynamic characteristics of a non-pneumatic wheel, called the mechanical elastic wheel (MEW), which was rolling over a ditch were investigated by the explicit dynamic finite element (FE) method. A three-dimensional FE model of MEW considering geometric nonlinearity, material nonlinearity and large contact deformation between the wheel and the road, was established. For the validation of the accuracy and reliability of the FE model of MEW, the simulation and the experimental results of the radial stiffness and footprint of MEW were compared and analyzed. A dynamic simulation of the validated FE model of MEW rolling over a ditch was conducted using the ABAQUS/Explicit program. The equivalent stress and the contact stress generated during the process of the rolling MEW impacting the ditch were studied in detail. The effect of the rolling speed on the transient dynamic characteristics was also analyzed based on the simulation results. The simulation results could provide guidance for the optimization of the MEW structure and vehicle dynamics.
Key wordsNon-pneumatic wheel Mechanical elastic wheel Transient dynamic characteristic Explicit finite element analysis
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- Besselink, I. J. M., Pacejka, H. B., Schmeitz, A. J. C. and Jansen, S. T. H. (2012). The MF-Swift tyre model: Extending the magic formula with rigid ring dynamics and an enveloping model. Review of Automotive Engineering, 26, 245–252.Google Scholar
- Bridgestone, C. (2013). Non-pneumatic Tire. JPN: JP2013/177140.Google Scholar
- Du, X. B., Zhao Y. Q., Lin, F., Fu, H. X. and Wang, Q. (2017). Numerical and experimental investigation on the camber performance of a non-pneumatic mechanical elastic wheel. J. Brazilian Society of Mechanical Sciences & Engineering, 1–13.Google Scholar
- Ju, J., Ananthasayanam, B., Summers, J. D. and Joseph, P. (2010). Design of cellular shear bands of a non-pneumatic tire-investigation of contact pressure. Hundred Schools in Arts 3, 1, 598–606.Google Scholar
- Li, B., Zhao, Y. Q. and Zang, L. G. (2014). Closed-form solution of curved beam model of elastic mechanical wheel. J. Vibroengineering 16, 8, 3951–3962.Google Scholar
- Maalej, A. Y., Guenther, D. A. and Ellis, J. R. (1989). Experimental development of tyre force and moment models. Int. J. Vehicle Design 10, 1, 34–51.Google Scholar
- Ma, J., Summers, J. D. and Joseph, P. F. (2010). Simulation studies on the influence of obstacle on rolling lunar wheel. Proc. ASME Int. Conf. Advanced Vehicle and Tire Technologies, 89–100.Google Scholar
- Wang, Q., Zhao, Y. Q., Du, X. B., Zhu, M. M. and Fu, H. X. (2016a). Equivalent stiffness and dynamic response of new mechanical elastic wheel. J. Vibroengineering 18, 1, 431–445.Google Scholar