To predict the vibro-acoustical behavior of a vehicle cockpit module, a statistical energy analysis (SEA) model was developed using AutoSEA2TM. This model was constructed to simulate a complete cockpit, including instrument panel, steering system, HVAC, close-out panels, center console with radio and HVAC controls, instrument cluster, and airbag unit. The model was validated via experimental testing. Noise path analysis and design sensitivity analysis were conducted to understand the effect of various design configurations on system vibro-acoustic behaviors. The key advantage of this approach is to predict acoustical performance of the product in the early design phase in an effective and efficient way, which will significantly reduce cost and design lead-time, and improve OEM customers’ satisfaction.
2002 – INTERNOISE, Detroit, USA
Lijian (Lee) Zhang (Delphi Automotive Systems, USA)
Denis Blanchet (VaSci, USA)