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Master's Dissertation
DOI
10.11606/D.3.2005.tde-08122005-132842
Document
Author
Full name
Edson Luciano Duque
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Salvagni, Ronaldo de Breyne (President)
Gueler, Gabriel Felix
Nigro, Francisco Emilio Baccaro
Title in Portuguese
Efeito das vibrações torcionais do volante de motores na determinação do sistema de embreagem veicular.
Keywords in Portuguese
embreagem
veículos automotores
vibrações de máquinas
Abstract in Portuguese
O motor de combustão interna, embreagem, transmissão, diferencial, eixo Cardan, semi-eixos e rodas motrizes compõem o trem de potência de um veículo que, por diversas razões de refinamento e peso, oferecem baixa “resistência” aos ruídos decorrentes da irregularidade de rotação do motor. O presente trabalho reúne elementos para analisar os efeitos das flutuações de rotação (vibrações torcionais) presentes nos volantes de motores de quatro tempos, medidas em dinamômetro, no desenvolvimento de sistemas de embreagem. O uso de simulação matemática computacional permite amenizar ou eliminar os ruídos provenientes da transmissão no veículo protótipo, possibilitando assim ganhos significativos no tempo de desenvolvimento de discos de embreagem e/ou volantes de dupla massa.
Title in English
Effects of torsional vibration of engine flywheels to define the automotive clutch system.
Keywords in English
automotive vehicles
clutch
machine vibration
Abstract in English
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 irregularity (torsional vibration) present on flywheels of 4-stroke engines, as measured in dynamometer, in the development of clutch systems. The use of computer simulation allows to soften or to eliminate the noise deriving from the transmission of prototype vehicles with new powertrain combination (clutch discs and/or dual-mass-flywheels), bringing considerable development time gains.
 
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Publishing Date
2005-12-09
 
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