Browse Publications Technical Papers 912710
1991-11-01

Measurement of Structural Attenuation of a Diesel Engine and its Applications for Reduction of Noise and Vibration 912710

Structural attenuation of a running diesel engine measured by a new technique showed a constant value regardless of engine speeds. It was verified by this result that structural attenuation is a physical quantity unique to the structure of each engine and, therefore, a good indicator for evaluation of low noise engine structure. In addition, a hydraulic excitation test rig was devised to measure structural attenuation directly and to make effective use of it for noise reduction. Based on the accurate measurements by the excitation test rig, modal analysis and system simulation were conducted for implementation of countermeasures against noise.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% 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

The Application of a New Software Tool for Separating Engine Combustion and Mechanical Noise Excitation

2007-01-2376

View Details

TECHNICAL PAPER

Procedure for Separating Noise Sources of Combustion Engines

2009-26-0054

View Details

TECHNICAL PAPER

Development and Validation of an Acoustic Encapsulation to Reduce Diesel Engine Noise

2007-01-2375

View Details

X