1. Mem. ASME Chair of Structural Mechanics and Vehicle Vibrational Technology, Brandenburg University of Technology, Siemens-Halske-Ring 14, Cottbus D-03046, Germany e-mail:
2. Chair of Structural Mechanics and Vehicle Vibrational Technology, Brandenburg University of Technology, Siemens-Halske-Ring 14, Cottbus D-03046, Germany e-mail:
3. MAN Diesel & Turbo SE, Stadtbachstr. 1, Augsburg, Bayern D-86153, Germany e-mail: