Research on the Influence of Door and Window Sealing on Interior Wind Noise Based on Statistical Energy Analysis

<div>Wind noise is an important indicator for evaluating cabin comfort, and it is essential to accurately predict the wind noise inside the vehicle. In the early stage of automotive design, since the geometry and properties of the sealing strip are often unknown, the contribution of the sealing strip to the wind noise is often directly ignored, which makes the wind noise obtained through simulation in the pre-design stage to be lower than the real value. To investigate the effect of each seal on wind noise, an SUV model was used to simulate the cases of not adding body seals, adding window seals, and further adding door seals, respectively. The contribution of each seal to wind noise was obtained and verified by comparing it with the test results. The influence of the cavity formed at the door seal was also addressed. In the simulations, a CFD solver based on the lattice Boltzmann method (LBM) was used to solve the external flow field, and the noise transmitted into the interior of the vehicle through each sealing strip was analyzed using the statistical energy analysis (SEA) method. The results show that the simulation method used in this article can predict the effect of each seal on wind noise more accurately in the pre-design stage of the automobile, which provides guidance for the control of seal noise in the pre-design of the automobile. By analyzing the impact of various sealing strips on the noise inside the car, the significance to take into account the effect of door and window seals on interior noise during the early stages of car design is verified, and it proves that the adopted method can provide effective guidance for controlling sealing noise in the early stage of car design.</div>