Cellular shell for helicopter fuselage

摘要

The anti-drone device comprises sprung-located absorbers (5) integrated directly in the outer skin (1). Beneath the absorbers in the outer skin recesses are machined in the core (2). The absorbers are broad-band vibration absorbers and have the form of tongues. The absorbers can also be of the resonance-absorbing type and are provided individually or in pairs opposite to one another above the recesses. They are lined with a damping layer (6). They can also be lined with a mass (7) and selectively with and without damping layer. They are distributed symmetrically on the outer skin.