{HEAD ~ An object} of the invention is to provide reduction in vibration at the position of its installation in {TAIL ~ a mechanical system} in one or more specified frequency bands 
{ HEAD ~ An object } of the invention is to provide reduction in vibration at the position of its installation in { TAIL ~ a mechanical system } in one or more specified frequency bands
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH