Optimization of Window Glass Parameters on Vehicle Weight and Wind Noise

In this article, a three-dimensional transient CFD simulation method is used to simulate the wind noise of a vehicle model’s external flow field. The transient noise excitation of external noise sources outside each window glass are analyzed, and the statistical energy analysis method is used to calculate the articulation index of the front and rear passenger inside the vehicle. Then, the variation range of the thickness of each window glass is set, and the side window glass is also divided into two types: single-layer glass and laminated glass. After the design parameters are defined, the design space is established. The articulation index of the front and rear passengers and the total weight of the glass are the three design objectives for multi-objective optimization simulation, based on the results of optimization simulation, the change trend of each design parameter and design objective is analyzed; the sensitivity of the design objective to each design parameter is studied; the limit value of the design objective is calculated; the relationship between each design objective is analyzed; and the optimal design proposal that can achieve multiple design objectives at the same time is obtained.