top of page
A6. Exhaust System Combined Pressure Wave - Normal Modes - Analysis
Goal:
Identification of the noise reduction exhaust system structure considering also pressure waves
Method:
-
1D gasdynamics model of exhaust system
-
3D CFD of wave reduction structures
-
CAD of exhaust system
-
FEA – Normal modes analysis
Results:
-
An exhaust system structure with 10 % reduced wave amplitudes
-
A normal frequency shift 30% away from nominal engine speed

bottom of page