报告题目：Vibration and Noise Control of Vehicle Drive Systems
The lecture presents an overall simulation approach to control the noise emission of car engines in a very early stage of the design process where no real prototypes are available . The suggested approach combines different physical models and couples different software tools such as multi-body analysis, fluid dynamics, structural mechanics, magneto-electrodynamics, thermodynamics, acoustic and control as well. In the presentation the general overall simulation methodology is discussed first. Then, this methodology is applied to a combustion engine in order to improve their acoustical behavior by passive means, such as changing the stiffness and the use of damping materials to build acoustic and thermal encapsulations , . The sound emission is evaluated by hearing tests and a mathematical prediction model of the human perception . Finally, the presented overall simulation approach is also applied to analyze and to improve the acoustics of electro engines, which is demonstrated at a newly developed electric wheel hub motor. The numerical results are also experimentally validated with acoustic and vibration measurements.
Ulrich Gabbert graduated at the University of Magdeburg as Mechanical Engineer (Dipl.-Ing.) in 1971. He received the first doctoral degree (Dr.-Ing.) in mechanics in 1974. Then he was working as a design engineer in a pump and compressor company in the city of Halle. From 1980 until 1992 he was senior assistant and head of the Finite Element Development Group, responsible for finite element software developments and industrial applications. In 1982 he received the facultas docendi in Mechanics and in 1988 the habilitation (Dr.-Ing. habil.). Since 1992 he is full University Professor of Computational Mechanics at the University of Magdeburg, Germany.. His research interests are finite elements with a focus on multi-field problems, higher order finite elements, fine cell methods and high performance computing, smart material and structures, active and passive methods of vibration and noise control, structural health monitoring and medical engineering. Professor Gabbert has given numerous lectures on computational mechanics, finite element analysis, smart structures and intelligent structural systems, structural health monitoring and wave propagation, etc., in U.S., Japan, China, Russia, Hungarian, Bulgaria, Tschechien, Poland, Sweden, UK, France, Netherlands, Italy, etc. He published, co-authored and edited several books and proceedings in mechanics, finite elements, smart materials and structures, acoustics and wave propagation analysis and he published more than 200 papers in reviewed international journals and around 250 papers in conference proceedings and as book chapters. He is a member of several national and international scientific organizations. In 2000 he received the Otto von Guericke Research Award.