Acoustic Behavior evaluation produced by Granular Composite for Tires of Urban Electric Vehicles
Authors: Sancho-Turrado, Angel (ORCID: http://orcid.org/0000-0003-2089-9490); Rodriguez-Llamas, Angel Carlos (ORCID: http://orcid.org/0000-0003-2509-1570); Calleja, Antonio Javier (ORCID: http://orcid.org/0000-0002-4271-8227);
Abstract: It comes to evaluating the acoustic behavior of a new granular composite designed to be implanted in tires of Urban and Light Electric Vehicles. The improved composite is made of urethane rubber as the matrix element, with beach sand milled as a dispersed granular material; have been developed seven composite samples with different contents in beach sand milled for this assay.
The new composite material was presented in previous work , the submission revealed outstanding mechanical properties related to minimization of wear by the Improved Composite.
This paper seeks to assess the acoustic-behavior and noise-characteristics when the samples of composite are subjected to wear tests. The motivation for conducting this assay is because it has been appreciated but in unquantified mode, that when composite samples have a greater quantity of beach sand milled , the noise level emitted by the wear test decreases. It is also very important to reduce the noise emission of tires Electric Vehicles to improve acoustic comfort inside homes in cities. In Spain there are regulations (CTE-DB-HR protection against noise), through Noise-Maps certain levels of sound insulation for homes are established. These noise levels are extremely high in roads, produced mainly by the rolling noise of traditional tires that we try to minimize.
Digital Object Identifier (DOI): http://dx.doi.org/10.15592/workrooms.2015.0010
Date: July 2015
Keywords: Urban Electric Vehicles, Design for Environment, Tyres, Noise Level Minimization, Wear Resistance, Mechanical Strength, Rubber, Materials.