Vehicle Internal Noise
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Controle ativo acústico estrutural: projeto, simulação e análise de qualidade sonora / Active structural acoustic control: design, simulation and analysis of sound quality
This master thesis deals with the study of active noise and sound quality control systems in automotive applications, and the innovative assessment of their performance based on relevant psychoacoustic metrics in this area such as Loudness, Roughness and Tonality. A methodology for designing and implementing active control systems based on psychoacoustic met
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2012
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2. Estudo do ruído de rodagem estrutural através da análise dos caminhos de transferência de energia - TPA / Structure-borne road noise study using transfer path analysis, TPA
The road noise, vibration and harshness (Road NVH) present from 20 Hz to 1000 Hz approximately, begins from the tires vibration and acoustic propagation and their interactions with the road surfaces. In these noise sources, both structural-borne and air-borne noise contributions are relevant to vehicle refinement. The constant efforts to study the vehicle as
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2011
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3. Desenvolvimento de um programa de aprimoramento vocal numa escola publica de ensino fundamental do municipio de Campinas : estudo de caso / Development of a vocal improvement program in a public school of Campinas : case study
The frequent appearance of changes in voice among teachers has led researchers to consider the preventive interventions as of great importance. Despite the high rate of change in teacher s voice, few studies have evaluated and discussed measures taken to prevent and treat these professionals in dysphonia. This study aimed at large, review and discuss the dev
Publicado em: 2008
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4. Efeito das vibrações torcionais do volante de motores na determinação do sistema de embreagem veicular. / Effects of torsional vibration of engine flywheels to define the automotive clutch system.
The internal combustion engine, clutch, transmission, differential, propeller shaft, half shafts and driven wheels compose the powerline of a vehicle which, due to several reasons of refinement and weight, offer low noise "counter resistance" to engine irregularity. This report is a collection of elements to analyze the effects of the engine revolution irreg
Publicado em: 2005