A Computational Process to Effectively Design Seals for Better Wind Noise Performance
Ability to assess noise transmitted through seals to cabin interiors early in the design process is very important for automotive manufacturers. When seal design is inadequate, noise transmitted can dominate the interior noise, making the wind noise performance of the vehicle unacceptable. This may cause launch delays costing a great deal of money and loss of sales. Designing seals using conventional experimental processes is challenging, since the location and strength of flow noise sources are not known when the seal design is planned. Making changes to the seal system after the tooling stage is expensive for OEMs, as the supplier must cover tool and redesign costs. Deliberate overdesign by adding multiple layers of seals everywhere reduces profit by raising part and manufacturing costs.