capacity annually. The critical daily noise exposure level of 85 dBA
is often exceeded in the manufacturing industry [1,3].
As a consequence, technological advancements are needed to
improve noise emissions of machining. A first solution consists of
encapsulating the whole machine, which is not realistic in
production system that requires operators. A second solution
can consist of adding silencing equipment, which is always costly.
A third solution is based on new machine components with passive
damping components [4] or active mechanical components
[5]. These approaches are valid for new investments but not for
current machine-tools, that represent the vast majority of
production systems.