Pulsed holographic interferometry in predictive tire testing

Piotr J. Wesolowski; Jakob Woisetschlaeger

doi:10.1117/12.212668

23 June 1995 Pulsed holographic interferometry in predictive tire testing

Piotr J. Wesolowski, Jakob Woisetschlaeger

Proceedings Volume 2545, Interferometry VII: Applications; (1995) https://doi.org/10.1117/12.212668
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

This paper presents several examples of tire vibration analysis under different loads, inflation pressures, and excitation modes. Several consecutive structural resonant modes were also analysed in the frequency range 190-260 Hz to search for their contribution to a phenomenon called the first resonant frequency of the tire cavity as well as to experimentally determine their contribution to the tire noise spectrum. A Lumonics HLS-2 ruby laser system was used in double exposure mode during the experiments. The capability to precisely map a 3D displacement vector field is shown through utilization of an image processing system and a simple fringe order tracking procedure. The examples supplied demonstrate that HI can provide very accurate experimental measurement of mode amplitudes to precisely tune FEA tire models under arbitrary boundary condition. This experimental technique can also be used to measure responses of some 'exotic' materials built into a tire for which the computer models cannot be easily established. The unique capabilities of HI were also applied to studies of the surface shock wave propagation in the tire carcass and sidewall. Several examples of different dynamic response of the tire due to changing experimental conditions are presented.

Citation Download Citation

Piotr J. Wesolowski and Jakob Woisetschlaeger "Pulsed holographic interferometry in predictive tire testing", Proc. SPIE 2545, Interferometry VII: Applications, (23 June 1995); https://doi.org/10.1117/12.212668

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KEYWORDS

Holographic interferometry

Wave propagation

Finite element methods

Modal analysis

3D modeling

Holography

Vibrometry

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