Technical Paper
Vehicle Acoustic Synthesis Method 2nd Generation: New Developments with p-u Probes Allowing to Simulate Unsteady Operative Conditions Like Run-Ups
2007-05-15
2007-01-2271
The challenge of a NVH development is to define a link between the target of the OEMs expressed in terms of acoustic performance, weight and cost and the design of the optimized acoustic package reaching this target. The “Vehicle Acoustic Synthesis Method” (VASM) has been developed in order to create this link. The VASM method, which is an energy based hybrid simulation technique, calculates the Sound Pressure Level at ear location from the combination of sound power measurements and acoustic frequency response functions (FRF) panel/ear, either measured or simulated with Ray-Tracing Methods.