Optimization of Test Parameters and Analysis Methods for Fuel Tank Slosh Noise

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Abstract

<div class="section abstract"><div class="htmlview paragraph">As the interior sound levels in cabin compartments of passenger vehicles continue to get quieter, noises from various sources which previously were not objectionable can become an issue. One such source is the “slosh noise” from liquid movement within fuel tanks.</div><div class="htmlview paragraph">Vehicle manufacturers, responding to the phenomena, have turned to their suppliers and worked with them to establish robust test and analysis methods to characterize the NVH performance of their fuel storage and delivery systems. Test facilities have recently made great advancements in the capability to measure and characterize “fuel slosh noise” in tanks. However, the industry today lacks standardized procedures to apply to the issue, including defining test parameters and analysis methods (both of which are complex because of the time-domain nature of slosh events).</div><div class="htmlview paragraph">The purpose of this paper is to identify the current capabilities and discuss optimal parameters of testing component-level fuel slosh noise, and to explore the merits of various NVH analysis methods that can be used to quantify slosh noise.</div></div>

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