Natural frequencies and mode shapes of an automotive tire with interpretation and classification using 3-D computer graphics

Kung, L.E.; Soedel, W.; Yang, T. Y.; Charek, L. T.

doi:10.1016/s0022-460x(85)80146-2

Cited by 27 publications

(3 citation statements)

References 11 publications

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“…The P185/80R13 radial automotive tire [21] was used in this analysis. The laminate construction of the tire was categorized in five material zones: belt, upper-sidewall, mid-sidewall, lower-sidewall, and bead.…”

Section: Radial Automotive Tire Under Internal Inflation Pressurementioning

confidence: 99%

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Geometrically Nonlinear Finite Element Analysis of Imperfect Laminated Shells

Saigal

Kapania

Yang

1986

Journal of Composite Materials

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Formulations and computational procedures are presented for the finite element analysis of laminated anisotropic composite thin shells including imperfections. The derivations of the nonlinear geometric element stiffness matrices were based on the total Lagrangian description. A 48 degree-of-freedom (d.o.f.) general curved shell element with arbitrary distribution of curvatures was used to model the shell middlesurface. Numerical results include the large deflection behavior of a variety of perfect plate and shell examples; buckling of a spherical shell with an axially symmetric imperfection ; and buckling of a cylindrical panel using measured initial transverse imperfections. A good comparison with existing results is obtained.

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Section: Radial Automotive Tire Under Internal Inflation Pressurementioning

confidence: 99%

“…The Halpin-Tsai [22] equations were used to determine the in-plane composite properties of cord-rubber plies. The details of the material properties are given in Reference [21].…”

Section: Radial Automotive Tire Under Internal Inflation Pressurementioning

confidence: 99%

Geometrically Nonlinear Finite Element Analysis of Imperfect Laminated Shells

Saigal

Kapania

Yang

1986

Journal of Composite Materials

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“…There exists a number of papers (for example, [13,20,26,28]) devoted to classification of tire modes. A good classification based on mechanisms of modes behavior could help in control of resonances of a tire.…”

Section: Introductionmentioning

confidence: 99%

Saddle Point Method Interpretation of Transient Processes in Car Tires

2023

JSFI

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The problem of mechanical excitation of a suspended tire is studied experimentally and theoretically. The tire is considered as an elastic waveguide. Its numerical description is provided by the Waveguide Finite Element Method (WFEM). A case of tire excitation by a δ-shaped pulse is considered, which corresponds to a short kick applied to some point of the tire. The paper focuses on asymptotic analysis of the formal solution. Mainly, a forerunner is evaluated, which is a fast non-stationary wave having an exponential decay. A modification of the saddle point method, namely, a multi-contour saddle point method, is applied for such an estimation. In the framework of this method, we look for the saddle points of the analytical continuation of the dispersion diagram of the waveguide, taking into account that the contours of integration form a family of curves on the dispersion diagram. The tire pulse response is also measured experimentally. A good agreement between the experimentally observed forerunner and its theoretical prediction is shown.Keywords: transient processes in car tires, forerunner, carcass of the dispersion diagram, complex dispersion diagram, multi-contour saddle point method.

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