Piezoelectric device for reducing the vibrations of a structural element

摘要

A piezoelectric device for reducing the vibrations induced in a first structural element by first mechanical waves acting thereon, characterized in that it comprises: first piezoelectric means which are operatively coupled to the first structural element so as to deform and produce an electrical signal in response to its vibrations; second piezoelectric means operatively coupled to a second structural element; and conducting means for electrically coupling said first piezoelectric means to said second piezoelectric means; the second piezoelectric means receiving said electric signal and deforming so as to determine a vibration of the second structural element and the consequent production of second mechanical waves which oppose said first mechanical waves. <IMAGE>