Análise de vibração de equipamento de medições de emissões para veículos pesados em condições reais de rodagem

Abstract

The reduction of pollutant emissions in internal combustion engines is a major challenge for the automotive industry. Given the new regulations on this subject in Brazil (CONAMA P8), for the certification of new engines, it is necessary to measure the emissions of pollutants under real conditions of use. With this, numerous problems have arisen in using specialized equipment for this type of measurement, one of them being vibration. Thus, in this work, a case study was conducted in a company in Curitiba, which has been facing problems with vibration of this equipment. Besides understanding the current panorama of the system, a solution to the problem was proposed, with a damping system capable of framing the conditions of use in conditions to mitigate risks of damaging the equipment due to vibration. For the proposal to be elaborated, a phase of vibration signal acquisition in field testing was performed, in which the system behavior could be understood and used as input for the development of the proposed solution. Finally, it was possible to present a viable proposal to achieve the objectives presented in this work.