Guimarães, L., Abreu, R., and Ferreto, C., "Experimental Study of Bus Noise Phenomenon in a Suspension System Assembled with Drum Brakes Through Modal Analysis Techniques," SAE Technical Paper 2016-36-0189, 2016, doi:10.4271/2016-36-0189.
The automotive industry currently has a big concern with the vibro-acoustic comfort. The growth of concurrence and the clients requirement becomes necessary the researches in new techniques for analysis and improvement. Hence many vibro-acoustic phenomena causes uncomfortable noises in a vehicle. One of this noises is descendant of braking system and is known as Bus Noise. This paper presents a methodology which uses Experimental Modal Analysis (EMA) and Operational Modal Analysis (OMA) to survey the dynamic behavior of suspension and brake systems at the Bus Noise occurrence condition.