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Reduce the pressure, go for particle velocity
Scientific Papers

Operational modal analysis of a tyre using a pu probe based scanning technique

ABSTRACT

Tyre vibration can be studied with several experimental and simulation techniques. An important goal for a tyre manufacturer is to “tune” the resonant frequency of the tyre subsystem to reduce the structure-borne noise in the car interior. In this paper, a novel measurement technique is applied to determine the operational tyre deflection shapes under different conditions; i.e. free condition, loaded condition, and rolling condition. The vibrational behaviour of a tyre is studied using a PU probe, which comprises a sound pressure and a particle velocity sensor, and a scanning technique. The relative phase information is obtained using a static reference sensor. The experimental data can be used to validate simulated mode-shapes and resonant frequencies.

Tijs, E., Makwana, B., Peksel, O., Amarnath, S., Bekke, D., 2013. Operational modal analysis of a tyre using a pu probe based scanning technique. Acoustics, New Dehli.

Reduce the pressure, go for particle velocity

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