3417. On the Influence of the Inertia Properties on the Vibrations of a Car Engine

Publication TypeConference Paper
AuthorsMuñoz, L.; Scalmana, C.; Troccoli, S.
Year of Publication2007
Paper Number3417
Conference66th Annual Conference, Madrid, Spain
Conference LocationMadrid, Spain
Paper Category5. Inertia Calculations; 31. Weight Engineering - Surface Transportation
Pages21
Date Published5/28/2007
Price$8.40
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Key Words5. Inertia Calculations; 31. Weight Engineering - Surface Transportation
AbstractThe paper presents a study about the influence of the inertia properties on the dynamic behavior of a vehicle powertrain (in our specific case we considered a system composed of the engine and the gearbox of a front wheel drive car). The dynamic performance of such a powertrain was studied both theoretically and experimentally by means of proper sensitivity analyses. The information provided by the measurements was used for the validation of two mathematical models of the powertrain. Both the experimental and the theoretical simulations confirmed that the powertrain vibrations in the range 10 ? 15 Hz are particularly sensitive to slight variations of the inertia properties. According to the common knowledge referring to the dynamic behavior of cars, at relatively high speed, the vibrations of the powertrain in the range 10-15 Hz can seriously decrease comfort and even affect safety. The conclusions derived from the analysis of the examined particular case can be extended easily to a broad class of road vehicles.
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