Patent ID: 8028802

Claim:
An acoustic panel system comprising: a plurality of acoustic panel segments aligned circumferentially about an inner diameter of a fan containment case, each segment comprising a radially inner surface defining a portion of a fluid duct, a radially outer surface defining a gap between the fan containment case and the acoustic panel segment, and an aft end lip configured to be inserted into a complementarily-shaped mating groove that extends circumferentially about an inner surface of the fan containment case; at least one damping bumper coupled to the radially outer surface, said bumper extending from the radially outer surface to the fan containment case, said damping bumper comprising an energy absorbing elastomeric material configured to facilitate dissipating a forced response of a vibratory stimulus; and one or more fasteners extending through a forward edge of each of the plurality of acoustic panel segments from said radially inner surface to the fan containment case, said one or more fasteners configured to anchor a respective acoustic panels to the fan containment case; said at least one damping bumper circumferentially spaced apart from said one or more fasteners.