EXCITE for Turbocharger Rotor Dynamics Simulation

Ugo Sorge



The constant need to reduce the emissions of IC engines by maintaining high power outputs, a good drivability and grant, at the same time, low fuel consumption are driving the Automotive industry towards "downsizing" concepts.

These concepts consist in supercharging an engine with a smaller displacement to get the same power rate than a bigger sized naturally aspirated engine. Both the system complexity and also the failure possibilities of those additional components increase.

Modern turbochargers reach very high rotor-speeds which make lubrication, cooling and wear reduction even more challenging. With the use of AVL EXCITE the layout of the system and its components can be investigated and improved in order to achieve a longer component life.