info simul   downl   cont  


Zero Polygon effect

Chain drives in combustion engines frequently induce a disturbing noise, so-called whine noise. Basically, this noise is caused by the chordal action or polygon effect that originates from the periodically changing effective radius of the sprockets. Smartchain B.V. presents a new roller chain or bushing chain that entirely avoids the disturbing polygon effect. The concept was evaluated by AVL List GmbH, Austria, using the multi-body dynamics software Tycon.