FIELD: manufacturing technology.
SUBSTANCE: invention relates to sound-absorbing panels with resonance-type cells, which suppress sound vibrations generated by gas flows and their injectors. Composite sound-absorbing panel consists of several interconnected sections. Each section comprises inner perforated and outer bearing layers of skin and arranged between layers filler made as a single unit in form of separate cells of different shape and/or volume. Sections are made with possibility of disconnection from each other.
EFFECT: invention enables increase in the sound absorption, besides, proposed design has smaller weight, reliable connection of noise-protective and bearing parts.
4 cl, 4 dwg
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