The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2015
Filed:
May. 22, 2012
Tomasz Krysinski, Marseille, FR;
Francois Malburet, Coudoux, FR;
Tomasz Krysinski, Marseille, FR;
Francois Malburet, Coudoux, FR;
Airbus Helicopters, Marignane Cedex, FR;
Ecole Naitonale Supérieure d'Arts et Métiers—E.N.S.A.M, Paris, FR;
Abstract
An aircraft () provided with a main gearbox () fastened to a load-bearing structure () via at least three suspension bars (). An active vibration absorber () is fastened around each suspension bar (), each vibration absorber () being provided with a first mass () connected to the associated suspension bar () via first resilient means (), and with a second mass () connected to the first mass () via second resilient means (), said vibration absorber () having a force generator () interposed between the first mass () and the second mass () and inputting a control force on being instructed by a control unit () as a function of information coming from at least one first measurement sensor () for sensing monitoring parameters for monitoring the associated suspension bar.