Vehicle Pass-By Exterior Noise In-Cell Simulation Test Method Caterpillar Incorporated

Format:

Conference/Event

Author/Creator:

Boland, Tim, author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1995-05-15 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

The vehicle pass-by exterior noise tests are generally subjected to several variables including the weather and test track surface conditions. Additionally, validity of test results depends on test driver judgment and consistency. In a time when vehicle manufacturers need to tap into all resources to control noise emissions to meet stringent limits, a more reproducible and accessible tool than the actual pass-by noise test will provide a development edge. As a major partner to vehicle manufacturers on noise control, the engine manufacturer (particularly diesel engine manufacturers) can additionally benefit from a development tool free of vehicle chassis and accessory effects. A technique developed and in use at Caterpillar simulates the pass-by noise test in-cell. This technique simulates the engine loading under vehicle acceleration with a prescribed external inertia. Corrections to measured sound pressure levels are made for vehicle speed (location versus time) and chassis effects to obtain actual pass-by noise levels

Notes:

Vendor supplied data

Publisher Number:

951358

Access Restriction:

Restricted for use by site license