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Çağlar İMER, Mehmet Onur GENÇ
IMPULSE SHOCK EFFECT ANALYSIS OF VEHICLE CURB CRASH ON DOUBLE MASS FLYWHEEL
 
Due to the downsizing of engine and increasing torque, new generation engines have been more sensitive. Therefore some severe maneuvers have been more critical for reliable powertrain. One of these maneuver is the vehicle curb crush in a specific combination of vehicle speed and gear shift. This maneuver is investigated at the development of torque transfer devices. Not only for manual transmissions, but also for it can be considered in the new generation electric cars. In this study, impact force phenomena was investigated with gasoline engine which is equipped with a dual mass flywheel. The impact force of the road disturbances is the important factor causing unpredicted system and part damages for the vehicles. The highest shock impulses cause the instant negative transient torque proportional to the system inertia and acceleration. In this study, the vehicle powertrain system subjected to a specific curb obstacle is investigated based on the shock effect on the Double Mass Flywheel (DMF) component. The LTI (Linear-Time-Invariant) system of the crash mechanism in-vehicle systems is presented as one-dimensional and three-dimensional models. The free-body-diagram (FBD) is presented in the curb crash condition, and the obtained equation of motion is then correlated via curb crash analysis. This study presents the failure analysis of the automobile dynamic conditions resulting in powertrain damage in urban driving conditions. ORCID NO: 0000-0001-5627-3225, 0000-0003-0332-1785

Anahtar Kelimeler: Powertrain Shock Impulse, Dynamic System Modeling, State Space Model, Powertrain Damage Analysis



 


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