Theoretical/Experimental Study on the Vibrations of a Car Engine 2008-01-1211
The influence of the inertia properties (mass, centre of gravity location, and inertia tensor) on the dynamic behaviour of the engine-gearbox system of a car is studied in this paper, devoting particular attention to drivability and comfort. The vibration amplitudes and the natural frequencies of the engine-gearbox system have been considered. Additionally, the loads transmitted to the car body have been taken into account. Both the experimental and the theoretical simulations confirmed that the engine-gearbox vibrations in the range 10 - 15 Hz are particularly sensitive to slight variation of the inertia properties. The effects on engine-gearbox vibrations due to half-axles, exhaust system, pipes and inner engine-gearbox fluids have been highlighted.
Luis E. Muñoz, Massimiliano Gobbi, Giampiero Mastinu, Mario Pennati
Politecnico di Milano
SAE World Congress & Exhibition
Load Simulation and Analysis in Automotive Engineering, 2008-SP-2184, SAE International Journal of Passenger Cars - Mechanical Systems-V117-6EJ, SAE International Journal of Passenger Cars - Mechanical Systems-V117-6