METHOD AND APPARATUS FOR ISOLATING AND MEASURING VEHICLE NOISE

Method and apparatus for individually isolating and measuring major vehicle noise sources such as the exhaust system, the air intake system and the engine. The noise sources are individually isolated, one at a time, while installed in their normal condition on the vehicle. Noise measurements are the...

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1. Verfasser: KENNETH C. KIRKLAND JR
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description Method and apparatus for individually isolating and measuring major vehicle noise sources such as the exhaust system, the air intake system and the engine. The noise sources are individually isolated, one at a time, while installed in their normal condition on the vehicle. Noise measurements are then taken on and around the vehicle while the vehicle is located on the ground similar to its operating position on a highway, with no building or reflecting surfaces near the test site which would affect the test results. The noises are individually isolated by parking the vehicle on top of a subterranean building having a soundproof room therein and by locating all but the one noise source being measured in the soundproof room. Standard measurement and analysis equipment are used.
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subjects MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
title METHOD AND APPARATUS FOR ISOLATING AND MEASURING VEHICLE NOISE
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