Browse Publications Technical Papers 1999-01-3085
1999-12-01

Noise and Vibration Optimization Measurements in a Medium Duty Truck, Powered by a new High Power 4 – Cylinder Engine 1999-01-3085

This work reports the first stage in the experimental optimization of a medium duty truck, equipped with a new engine, with four cylinders and high power, concerning both the noise emission for the environment and the noise level in the passengers' compartment. In the first stage of this work, comparative measurements among the noise levels for vehicles in different configurations were made, in order to identify the most important sources in the vehicle's noise level, as well as to serve as indicative for project improvements. Each system configuration was analyzed separately, in order to obtain a comparative evaluation of the different vehicle configurations along the whole period of measurements.

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