Measurement of Structural Attenuation of a Diesel Engine and its Applications for Reduction of Noise and Vibration Mitsubishi Motors Corporation

Format:

Conference/Event

Author/Creator:

Nakashima, Kazuhiro, author.

Conference Name:

International Truck and Bus Meeting & Exposition (1991-11-18 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1991

Summary:

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

Notes:

Vendor supplied data

Publisher Number:

912710

Access Restriction:

Restricted for use by site license