FIELD: engines and pumps.
SUBSTANCE: invention relates to determination of frequency components of damper to be secured to compressor at testing its sound wave length. Proposed method comprises the steps whereat compressor (20) cavity sound spectrum is defined without attachment of said damper to compressor (20). Cavity acoustic wave length is calculated. Damper near nozzle length is defined to calculate, proceeding from cavity acoustic wave length and damper near nozzle length, the frequencies related with damper near nozzle and compressor cavity. Damper near nozzle make the compressor near nozzle when damper is secured to the compressor (20).
EFFECT: attenuation of vibrations and/or reduction of noise.
11 cl, 10 dwg
