Excessive vibration can cause excessive wear on surrounding systems. Vibrators with their axes in the same plane and wired to contra-rotate will produce a linear motion at right angles to the vibrator axes. Amplitudes are given by the formulas below. True circular motion is only obtained when the center of the vibrator coincides with the center of gravity of the structure. When vibrators are fixed in noncenter of gravity positions, the motion will be in the form of an ellipse which varies at different points on the structure.
Amplitudes given by the formulas below are an average value suitable as an approximation.
Amplitude Centrifugal Force Required Power Requirements Vibrator Isolation Working Moment v. The power required from a vibrator depends on the nature of the application and the degree of damping present. It can be shown that for any application there is a peak power requirement when damping is at an optimum level. Amplitude Centrifugal Force Required Power Requirements Vibrator Isolation Working Moment v. When mounting vibratory equipment it is necessary to allow freedom of movement while preventing damaging vibrations from being transmitted to surrounding equipment or structural members.