SAE technical papers on CD-ROM/SAE technical paper series · 2011 · 12 citations · 5 references
EngineeringAutomotive EngineeringMechanical EngineeringStructural DynamicsStructural EngineeringVibrationCreep BehaviorCreep DeformationNoiseNoise TestingVehicle VibrationVibration TestingStructural NoiseStructural-borne Noise AnalysisVehicle Structural IntegrityVehicle Structural Integrity AssessmentVehicle Structural Vibration
<div class="section abstract"><div class="htmlview paragraph">Creep-groan noise is a low frequency noise less than 1000Hz and occurs when the vehicle is moving from stop or slowly stopping while the brake is applied at low brake pressure. The vibration source causing the sound is commonly thought to result from friction force variation in stick-slip phenomenon between friction material and disc. In the past, studies have been mainly focused on stick-slip. However, systematic approach involving chassis components has been recently investigated. In this paper, using a chassis dynamometer creep groan noise was reproduced. Through vibration measurements and modal impact tests, the effects of the vehicle system on creep noise were analyzed.</div></div>
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