SPECTS REGARDING GENERAL VIBRATIONAL BEHAVIOR OF DIESEL ENGINES

Abstract

he main vibration source of a vehicle is represented by the internal combustion engine. If we refer to vehicle in motion a considerable vibration source is also represented by the interaction between wheel and running path. One of the first objectives of car manufacturers it is to maintain a low level of vibration amplitudes or almost eliminating the vibrations that could be perceived by passengers. The study highlights aspects regarding the analysis of general vibration behavior of Diesel engines with the porpoise of identifying the vibration amplitudes transmitted by the internal combustion engine to passengers, vibration that are generated at the level of the Diesel engine and passed by the engine thru mountings and received by vehicle passengers. The analysis is focused on Diesel engines because in comparison with gasoline engines they develop higher vibration amplitudes.