US 8,024,965 B2 · Method for analysing tire vibration characteristics and an apparatus for carrying out said method

Abstract

A method for analyzing tire vibration characteristics and an apparatus for carrying out the method, wherein the apparatus includes a stiff frame including a wheel support for supporting a wheel with a tire to be analyzed. A base part is flexibly connected with the frame by elastic means. The elastic means is embodied such that the frame is flexibly supported in one predefined functional direction. An actuator is provided for exciting vibrations into the wheel. The method and apparatus allow separate analysis of the natural vibrations in all four functional directions.

Claims17

Dependent claims

A method for non-destructive analysis of natural vibrations of a tire comprising the steps:

fitting a tire to be analysed on a wheel;
arranging said wheel in an apparatus comprising a wheel support supporting said wheel, wherein said wheel support is adjustably fastened to a stiff frame flexibly connected to a base part by elastic means such that separate analysis of the natural vibrations in a predefined functional direction is allowed;
excitation of vibrations in the predefined functional direction in said wheel by means of an actuator;
measuring an input signal at a contact surface between said tire and said wheel;
measuring an output signal at a surface of said tire;
and
calculating transfer function of said tire by means of the input signal and the output signal.

4 more elements

Dependencies are inferred from the claim text.

Method for analysing tire vibration characteristics and an apparatus for carrying out said method

Life of this patent

Method for analysing tire vibration characteristics and an apparatus for carrying out said method

Life of this patent

Abstract

Claims17