Method of machine vibration analysis for tire uniformity machine

摘要

A machine has rotating components that generate radial and lateral vibration forces. When some of these are rotated the forces are measured by load cells mounted on one of the components. The cells produces analogue voltages corresponding to the forces. These are input to a computer converted in stages to digital signals, a frequency domain representation and then a power spectrum that shows the amplitudes of different frequencies. These amplitudes are compared with acceptable amplitudes for selected groups of frequencies. In one aspect the machine has a load wheel freely rotating on a spindle, a motor driven spindle and motor driven grinders. The load cells are on the load wheel spindle.