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.