|Tipo di tesi||Tesi di laurea magistrale|
|Titolo||Analisi e Sviluppo di un metodo per la valutazione della qualità di cambiata in Trattrici Agricole|
|Titolo in inglese|
|Struttura||Dipartimento di Ingegneria "Enzo Ferrari"|
|Corso di studi||Ingegneria Del Veicolo (D.M.270/04)|
|Data inizio appello||2021-06-11|
|Disponibilità||Embargo di 3 anni|
|Data di rilascio||2024-06-11|
Lo scopo di questo elaborato è quello di stabilire una metodologia oggettiva che permetta di valutare la qualità della cambiata, e quindi dell’intero sistema di trasmissione, nelle trattrici agricole.
The purpose of this paper is to establish an objective methodology that allows you to evaluate the quality of the gear shift, and therefore of the entire transmission system, in agricultural tractors. The starting point is the correlation between subjective sensations, provided by users, and objectively measurable parameters in the tests carried out on tractors. From the study of the state of the art, metrics were obtained that can be linked to the performance of the tractor and the perceived comfort, standardized tests were carried out in which different sizes were measured, the tractors tested were divided according to the size and to the power of the engine and finally a comparison was made between tractors of the same category. The comparison between the different tractors was made mainly in the shuttling and acceleration tests, from the analyzed and normalized data, it was highlighted that the tractors equipped with a continuously variable transmission system are more effective and guarantee better performance and comfort levels. ; a dimensionless index has been defined which allows us to understand how much a given tractor approaches an ideal behavior which confirmed what was initially thought.