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    • 8. 发明授权
    • Method and system for designing vehicle door seals based on predicted
sound transmission characteristics
    • 基于预测的声音传播特性设计车门密封的方法和系统
    • US5940788A
    • 1999-08-17
    • US850308
    • 1997-05-02
    • Kenneth Nero MormanYuksel Gur
    • Kenneth Nero MormanYuksel Gur
    • G06F17/50H04R29/00G06T17/00
    • G06F17/5018G06F17/5095
    • A method and system for designing a door seal system is based upon a predicted contribution of the door seal system to sound pressure levels (SPLs) within a vehicle due to wind noise. A door seal system design is selected and a door seal system deformed geometry is determined. The deformed door seal system and acoustic media are combined to produce a fully coupled acoustic/structure model of the door seal system. A sound transmission loss is predicted for the door seal system design under predetermined conditions using acoustics, finite deformation rubber elasticity, and steady state harmonic viscoelasticity. The sound transmission loss and interior SPLs are then displayed, and the door seal design changed according to predefined rules to produce a seal design which provides a desired SPL in the vehicle.
    • 用于设计门密封系统的方法和系统基于门密封系统对由于风噪声而在车辆内的声压级(SPL)的预测贡献。 选择门密封系统设计,并确定门密封系统变形几何形状。 变形的门密封系统和声学介质被组合以产生门密封系统的完全耦合的声学/结构模型。 使用声学,有限变形橡胶弹性和稳态谐波粘弹性,在预定条件下预测门密封系统设计的声传输损耗。 然后显示声音传输损失和内部SPL,并且根据预定义的规则改变门密封设计,以产生在车辆中提供期望的SPL的密封设计。