@inproceedings{23303, author = {{Münch, Eckehard and Trächtler, Ansgar}}, booktitle = {{Proc. 32nd Annual Conference of the IEEE Industrial Electronics Society – IECON}}, title = {{{Observation of Gradients by Means of Algorithmic Differentiation}}}, year = {{2006}}, } @article{23304, author = {{De Freitas Francisco, Andre L.}}, journal = {{36th Annual IEEE/IFIP International Conference on Dependable System and Networks}}, title = {{{Towards Dynamically Reconfigurable Hard-Real-Time Communication for Embedded Mechatronic Systems}}}, year = {{2006}}, } @article{23305, author = {{Toepper, S. and Lückel, Joachim and Trächtler, Ansgar}}, journal = {{4 th IFAC-Symposium on Mechatronic Systems}}, title = {{{Computer-Aided Education in Mechatronics with a "Window into the Computer"}}}, year = {{2006}}, } @article{23306, author = {{Giese, Holger and Henkler, Stefan and Hirsch, Martin and Tichy, Matthias and Voecking, Henner}}, journal = {{4. Paderborner Workshop Entwurf mechatronischer Systeme}}, pages = {{457--473,}}, title = {{{Modellbasierte Entwicklung vernetzter, mechatronischer Systeme am Beispiel der Konvoifahrt autonom agierender Schienenfahrzeuge}}}, volume = {{189}}, year = {{2006}}, } @article{23307, author = {{Schäfer, Erika and Bruns, Torsten and Wielenberg, Andreas}}, journal = {{Paderborner Workshop Entwurf Mechatronischer Systeme (EMS)}}, title = {{{Potential einer Störgrößenaufschaltung bei der Regelung aktiver Fahrwerke am Beispiel eines geländegängigen Nutzfahrzeugs}}}, year = {{2006}}, } @article{23308, author = {{Wielenberg, Andreas and Schäfer, Erika}}, journal = {{5th International Fluid Power Conference}}, title = {{{Model-based Design of an Active Suspension System Equipped with a Reversible Vane Pump}}}, year = {{2006}}, } @article{23309, author = {{Trächtler, Ansgar}}, journal = {{VDE Kongress}}, title = {{{Railcab - mit innovativer Mechatronik zum Schienenverkehrssystem der Zukunft}}}, year = {{2006}}, } @article{23310, author = {{Poddubny, Wladimir}}, journal = {{Forschungsbericht, RtM, Universität Paderborn}}, title = {{{Modellierung und Optimierung eines Elastomerlagers für ein aktives Federungssystem für PKW}}}, year = {{2006}}, } @article{23311, author = {{Bruns, Torsten and Münch, Eckehard}}, journal = {{6. Internationales Heinz Nixdorf Symposium}}, title = {{{Intersection Management as Self-Organisation of Mechatronic Systems}}}, year = {{2006}}, } @inproceedings{21777, author = {{Domik, Gitta and Goetz, Frank}}, booktitle = {{EG Education Papers}}, editor = {{Brown, Judy and Hansmann, Werner}}, pages = {{1--5}}, publisher = {{The Eurographics Association}}, title = {{{A Breadth-First Approach for Teaching Computer Graphics}}}, doi = {{10.2312/eged.20061001}}, year = {{2006}}, } @inproceedings{21778, author = {{Goetz, Frank and Domik, Gitta}}, booktitle = {{ACM SIGGRAPH 2006 Research Posters}}, isbn = {{1595933646}}, pages = {{51–es}}, publisher = {{Association for Computing Machinery}}, title = {{{Visual Shaditor: A Seamless Way to Compose High-Level Shader Programs}}}, doi = {{10.1145/1179622.1179681}}, year = {{2006}}, } @inproceedings{9532, author = {{Becker, C and Wedman, S and Hemsel, Tobias}}, booktitle = {{Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}}, number = {{Band 180}}, pages = {{481}}, title = {{{Design and Construction of a 3D-Scanning-Laservibrometer}}}, year = {{2006}}, } @article{9533, abstract = {{The design of piezoelectric transducers is usually based on single-objective optimization only. In most practical applications of piezoelectric transducers, however, there exist multiple design objectives that often are contradictory to each other by their very nature. It is impossible to find a solution at which each objective function gets its optimal value simultaneously. Our design approach is to first find a set of Pareto-optimal solutions, which can be considered to be best compromises among multiple design objectives. Among these Pareto-optimal solutions, the designer can then select the one solution which he considers to be the best one. In this paper we investigate the optimal design of a Langevin transducer. The design problem is formulated mathematically as a constrained multiobjective optimization problem. The maximum vibration amplitude and the minimum electrical input power are considered as optimization objectives. Design variables involve continuous variables (dimensions of the transducer) and discrete variables (the number of piezoelectric rings and material types). In order to formulate the optimization problem, the behavior of piezoelectric transducers is modeled using the transfer matrix method based on analytical models. Multiobjective evolutionary algorithms are applied in the optimization process and a set of Pareto-optimal designs is calculated. The optimized results are analyzed and the preferred design is determined. }}, author = {{Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}}, issn = {{0041-624X}}, journal = {{Ultrasonics}}, keywords = {{Piezoelectric transducer}}, pages = {{e747 -- e752}}, title = {{{Piezoelectric transducer design via multiobjective optimization}}}, doi = {{10.1016/j.ultras.2006.05.087}}, volume = {{44, Supplement}}, year = {{2006}}, } @inproceedings{9534, author = {{Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg}}, booktitle = {{Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}}, number = {{Band 180}}, pages = {{223--228}}, title = {{{Multiobjective optimization of piezoelectric transducers using evolutionary algorithms}}}, year = {{2006}}, } @inproceedings{9535, author = {{Genzo, Alexander and Sextro, Walter}}, booktitle = {{Proceedings of ISMA - International conference on noise and vibration engineering}}, keywords = {{Noise, Vibration engineering}}, pages = {{51--52}}, title = {{{Dynamic Behaviour of Elastic Bodies Coupled by Extended Friction Contacts}}}, year = {{2006}}, } @inbook{9536, abstract = {{This paper presents a model for unsteady longitudinal slippage of a loaded rubber wheel. The aim of modelling was to calculate the dynamical contact behavior in a numerical efficient way. Further on, simulation results are compared to experimental data.}}, author = {{Gutzeit, F and Sextro, Walter and Kröger, Matthias}}, booktitle = {{Analysis and Simulation of Contact Problems}}, editor = {{Wriggers, Peter and Nackenhorst, Udo}}, isbn = {{978-3-540-31760-9}}, pages = {{261--270}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Unsteady rolling contact of rubber wheels}}}, doi = {{10.1007/3-540-31761-9_29}}, volume = {{27}}, year = {{2006}}, } @inproceedings{9537, author = {{Hemsel, Tobias and Henning, C and Kauczor, Christopher and Littmann, Walter}}, booktitle = {{Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}}, number = {{Band 180}}, pages = {{183--186}}, title = {{{Powder coating fabrication by ultrasonic standing wave atomizer}}}, year = {{2006}}, } @inproceedings{9538, author = {{Hemsel, Tobias and Mracek, Maik}}, booktitle = {{Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}}, number = {{Band 180}}, pages = {{313--322}}, title = {{{Control of Bundled Miniature Ultrasonic Linear Motors}}}, year = {{2006}}, } @article{9539, abstract = {{Classically, rotary motors with gears and spindle mechanisms are used to achieve translatory motion. In means of miniaturization and weight reduction piezoelectric linear motors are of interest. Several ultrasonic linear motors found in literature base on the use of two different vibration modes. Most often flexural and longitudinal modes are combined to achieve an elliptic micro-motion of surface points. This micro-motion is converted to direct linear (or translatory) motion of a driven slider. To gain high amplitudes of the micro-motion and thus having a powerful motor, the ultrasonic vibrator should be driven near the eigenfrequency of its modes. Additionally, low mechanical and electrical losses lead to increased efficiency and large amplitude magnification in resonance. This demands a geometrical design that fits the eigenfrequencies of the two different modes. A frequency-deviation of only a few percent leads to non-acceptable disturbance of the elliptical motion. Thus, the mechanical design of the vibrators has to be done very carefully. Within this contribution we discuss different motor designs based on the coupling of two the same longitudinal vibrations within one structure to generate an elliptic motion of surface points. Different concepts based on piezoelectric plates and Langevin transducers are compared. Benefits and drawbacks against the combination of longitudinal and bending modes will be discussed. Numerical results of the stator vibration as well as motor characteristics are validated by measurements on different prototypes. }}, author = {{Hemsel, Tobias and Mracek, Maik and Twiefel, Jens and Vasiljev, Piotr}}, issn = {{0041-624X}}, journal = {{Ultrasonics}}, keywords = {{Piezoelectric linear motor}}, pages = {{e591 -- e596}}, title = {{{Piezoelectric linear motor concepts based on coupling of longitudinal vibrations}}}, doi = {{10.1016/j.ultras.2006.05.056}}, volume = {{44, Supplement}}, year = {{2006}}, } @inproceedings{9540, author = {{Hemsel, Tobias and Priya, S}}, booktitle = {{Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators}}, number = {{Band 180}}, pages = {{223--228}}, title = {{{Model Based Analysis of Piezoelectric Transformers}}}, year = {{2006}}, }