Abstract
One of the useful problems in the engines is its operation optimization.
During combustion we use mixture of oil and soy-oil in a stroke internal combustion engine (S.I.C.E. during its continuous operation.
Considering the combustion process as a dynamic excitation, we measure the noise and the vibration on chosen points on a S.I.C.E. By doing that we come to conclusions concerning the combustion flow.
In this experimental work appear the spectra of the noise and vibration measurements in connection with the R.P.M. of the engine. The comparison between the diagrams in the case of the simple combustion and the comubstion of the mixture give us important information about the influence of mixutre in the S.I.C.E.
So, we can have results on the structure optimization of the engines.
