Browse Publications Technical Papers 2006-32-0086
2006-11-13

Approach Combined Numerical and Experimental Analysis for Motorcycle Engine Radiation Noise 2006-32-0086

In recent motorcycles, radiation noise from engine surface dominates high percentage since enough measures have been taken for other noise sources such as intake, exhaust and drive train noise. Since most motorcycle engines consist with transmissions, the radiation noise is caused not only from combustion pressure but also from the gear meshing. Therefore radiation noise accounts for higher frequency than the other noise sources like intake and exhaust. At present, in order to reduce the radiation noise, we have to take countermeasures on actual engines since CAE is difficult to apply because of the characteristic of many high frequency components. In this study, technical build-up was made to enable the estimation of the engine radiation noise. Build-up was made of the modeling know-how of FE models capable of analyzing high frequency. We determined excitation force to the bearing housings in consideration of combustion force and gear meshing force based on the experimental data. Thus, we achieved noise prediction accuracy up to 3 kHz.

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

Transmission Gear Whine Control by Multi-Objective Optimization and Modification Design

2018-01-0993

View Details

TECHNICAL PAPER

Crankshaft Rumble Noise Phenomenon: Experimental Characterization of Source Strength and Path Response

1999-01-1770

View Details

TECHNICAL PAPER

Optimization of a Manual Transmission Gear Ratios for a Small Cargo Carrier using Statistics-Based Simulation Techniques

2005-32-0001

View Details

X