FIELD: simulation of acoustic (noise) and vibration loads corresponding to real flight conditions during takeoff run, alighting run and flight at critical angle of attack and considerable clouds.
SUBSTANCE: proposed seat has base whose struts are mounted on shock-absorbing supports and vibration and noise exciting mechanisms. Base is made in form of truncated pyramid with rigid lateral walls and upper and lower flanges secured on base. Upper flange is made in form of rigid shield with smoothly distributed perforations; lower flange is provided with air intake hole. Vibration and noise exciting mechanisms are made in form of dynamic loudspeaker whose horn is directed towards upper flange and is made integral with separating diaphragm provided with central outlet hole; its inlet is connected with setting unit of computer complex. Upper flange and lateral walls of base may be covered with casing made from airtight material.
EFFECT: enhanced efficiency.
2 cl, 2 dwg
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