Acoustic simulation for seal components: modelling and simulating transmission loss

In the automotive industry, seal components are extensively used in applications such as between different structures or inside the car main body. Seals can play an important role in the acoustic performance of complex systems for several reasons:

Seals can be the most efficient propagation path between an exterior noise source and the interior car environment (e.g. above 1-2 kHz). As a consequence, the performance of the seal will drive the global acoustic performance of the door.

Seals supporting the side windows are the key component controlling the damping at the critical (aka coincidence) frequency of the glass panel.

Seals adequately located and designed allow control of the acoustic propagation and the acoustic resonance inside the car pillars.