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A new approach for periodic structures. Application to the calculation of tire vibrations.

Hong-Hai Nguyen
Abstract : This work gives a dynamical approach for periodic structures and the application to tire modellings. The static and dynamic properties of the constitutive materials of the tire have been measured. Some specific models of homogenization have been used to determinate the mechanical equivalent characteristics. The frequency response functions have been measured at several points on the tire in two cases of excitation force: on the tread belt and on the sidewalls. The dynamical theory of periodic structures is presented. A transformation into the cartesian reference system of the structures having the periodicity in the non-cartesian reference system has been suggested. The utilization of transformation in the case of tire ensures periodic conditions in the exploitation of the matrices of cells. The mobilities at several points of the tire have been calculated and compared with the measurement. This work allows in one side the dynamical studies of tire in the high frequency range and in the other side a parametrical study of the influence of the material properties and the tire inflation pressure.
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Submitted on : Wednesday, June 24, 2009 - 8:00:00 AM
Last modification on : Wednesday, June 24, 2009 - 8:00:00 AM
Long-term archiving on: : Friday, September 10, 2010 - 1:27:56 PM

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Hong-Hai Nguyen. A new approach for periodic structures. Application to the calculation of tire vibrations.. Engineering Sciences [physics]. Ecole des Ponts ParisTech, 2008. English. ⟨pastel-00005240⟩

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