Browse Publications Technical Papers 2003-01-1608
2003-05-05

Development of Input Loads for Road Noise Analysis 2003-01-1608

To predict structure-borne interior noise using CAE simulation, it is important to establish a model for both the noise and vibration transfer path, as well as the excitation source. In the passenger vehicle, powertrain and road induced loads are major input sources for NVH. This paper describes a process to simulate the structure-borne road noise to 150Hz. A measured road surface is used for input for the simulation. Road surface data, in the form of height vs. distance, is converted to enforced motions at the tire patch in the frequency domain for input to the vehicle system model. The input loads are validated by the comparison of wheel hub excursions. The ability of the CAE simulation model to predict interior acoustic responses is shown by the comparison of the simulation results with measured vehicle interior responses.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Comparison of Time and Frequency Domain Source Path Contribution Analysis for Engine Noise Using a Noise and Vibration Engine Simulator

2008-36-0509

View Details

TECHNICAL PAPER

Simulation of the Sparrow Flight Vibration Environment

730939

View Details

TECHNICAL PAPER

Historical Perspective on Vehicle Interior Noise Development

2003-01-1518

View Details

X