Abstract
The article contains a developed finite element model of the rear part of the vehicle with the mufflers made adjoining the sphere. Experimental research has been carried out in accordance with the rules of the ECE UN R51 amendment 03. Calculation procedure was made to study the influence of the reflecting surfaces on the total sound pressure by the example of the exhaust pipe mouth. The finite element model of the vehicle rear part has been developed. The results of calculations and experimental research of the sound pressures of the exhaust pipe mouth are given. The developed calculation procedure has been proved by the experiments.
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