10th Symposium "The Working Process of the Internal Combustion Engine"
Computational Design of Turbochargers - A Contribution for the Development of High Performance Diesel Engines
Authors
Peter Nefischer, Franz Durstberger, Gerwin Bumberger, Michele Cecchini, BMW Motoren GmbH, Steyr
Year
2005
Summary
The attractiveness of modern passenger cars with turbocharged diesel engines is caused by high rated power, excellent dynamic behavior and low fuel consumption. High performance turbochargers make an essential contribution to these features. The function characteristics of turbochargers such as thermodynamics, fatigue and NVH (Noise Vibration Harshness), can be improved using simulation methods. Particularly, combined flow and structure computations allow predictions of, for example, the operational demands on the turbocharger caused by temperature cycles. New methods in fatigue analysis enable superposition of thermal strain and cyclic stress due to vibrations.
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