Abstract:In view of the problem of wind buffeting noise brought about by the opening of the automobile sunroof, based on the analysis of its generating mechanism, the wind buffeting noise control method with a pressure jet plate structure has thus been proposed. After a numerical simulation, a comparative analysis has been made of the wind buffeting noise of the original sunroof and the pressure jet plate to verify effectiveness of pressure jet plate. Taking the sound pressure level of wind buffeting noise as the optimization target, an optimization can be achieved of the jet pressure and jet angle, followed by a comparison and final selection of the optimal noise reduction scheme. The results show that the pressure jet plate can effectively reduce the pulsating pressure fluctuation amplitude and sound pressure level of wind buffeting noise, thus improving the riding comfort of the car.