A novel application of parametric resonance (PR) is described, which has
effectiveness of a vibrating screen used for size-sorting of crushed rock.
have had an economic impact on the Ukrainian company that makes the
screens: the mathematics
developed in Aberystwyth permits a stable, high amplitude PR-regime to be
found, reducing the
damage to the screen mesh and increasing its longevity. This new
technology is allowing the
company to reduce costs and equipment downtime and is enabling them to
gain a market
advantage by being able to sort wetter materials than previously.