Analysis of wind noise and seal optimization in front door area of an MPV
In order to solve the problem of"wuwu"wind noise in the front door area of an MPV,it analyzed sealing strip,door and A-pillar area sealing system by road test,and the lattice Boltzmann method(LBM)was used to simulate wind tunnel simulation.The results show air flow between the seal strip on the side of the door and the sheet metal cavity of A-pillar leaks from the lip of the seal strip,it forms the eddy current in the area of A-pillar forms fluid-structure coupling vibration,resulted the noise.The problem is related to the door side seal,door and A-pillar modeling.The material at the root of the outer lip of the door side seal strip is changed to improve the compression load,and two convex ribs are added at the joint angle with A-pillar.The test verified that the noise disappeared and the problem was solved.
Wind noiseSealing strip of the doorThe compression load
万方数据
维普
