@inproceedings{8941, abstract = {{Numerical predictions of the forced vibration of a disc assembly including frictional effects between the shrouds are presented concerning engineering needs for the blade design process. Assuming a tuned disc assembly, numerical static, free and then forced vibration analyses of a shrouded turbine blade measured in the spin pit are performed systematically. For the excitation forces of an air jet evaluated from the fairly linear behavior of the experimental blade resonance peaks, the reliability of the proposed approach is validated through the very close agreement of the computed and measured resonant peaks. These resonant peaks demonstrate either a fairly linear behavior or a non-linear one like the jump effect of blade resonance amplitudes, or elastic impacts between the shrouds. Also, the damping performance for different contact configurations between the shrouds is numerically analyzed. These numerical results indicate that the shrouds generate higher frictional damping for small angles (0--30 deg) between the circumferential direction and the normal vector to the contact surface. Copyright {\copyright} 2003 by ASME}}, author = {{Szwedowicz, J and Sextro, Walter and Visser, R and Masserey, P.A}}, booktitle = {{ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference}}, isbn = {{0-7918-3687-8}}, keywords = {{Turbine blades, Vibration}}, number = {{GT2003-38808}}, title = {{{On forced vibration of shrouded turbine blades}}}, doi = {{doi:10.1115/GT2003-38808}}, year = {{2003}}, } @article{28783, author = {{Mahnken, Rolf}}, issn = {{0020-7683}}, journal = {{International Journal of Solids and Structures}}, pages = {{6189--6209}}, title = {{{Creep simulation of asymmetric effects by use of stress mode dependent weighting functions}}}, doi = {{10.1016/s0020-7683(03)00388-3}}, year = {{2003}}, } @inbook{45415, author = {{Stein, Erwin and Zhang, Genbao and Huang, Yuejun and Mahnken, Rolf and Wiechmann, Karin}}, booktitle = {{Plasticity of Metals}}, publisher = {{Wiley-VCH Verlag GmbH}}, title = {{{Theoretical and Computational Shakedown Analysis of Non-Linear Kinematic Hardening Material and Transition to Ductile Fracture}}}, doi = {{10.1002/3527600116.ch11}}, year = {{2003}}, } @inbook{45414, author = {{Mahnken, Rolf and Stein, Erwin}}, booktitle = {{Plasticity of Metals}}, publisher = {{Wiley-VCH Verlag GmbH}}, title = {{{Parameter Identification for Inelastic Constitutive Equations Based on Uniform and Non-Uniform Stress and Strain Distributions}}}, doi = {{10.1002/3527600116.ch12}}, year = {{2003}}, } @article{23342, author = {{Albert, Amos and Strasser, R. and Trächtler, Ansgar}}, journal = {{Proc. 9th international CAN Conference}}, pages = {{05/09--05/16}}, title = {{{Migration from CAN to TTCAN for a Distributed Control System}}}, year = {{2003}}, } @inproceedings{21049, author = {{Meschut, Gerson}}, booktitle = {{Gemeinsame Forschung in der Klebtechnik, 2. Kolloquium der DECHEMA, DVS, Studiengesellschaft Stahlanwendung und FAT}}, pages = {{35--38}}, title = {{{Untersuchungen zum Crashverhalten geklebter und hybrid gefügter Stahlblech-verbindungen}}}, year = {{2002}}, } @article{21050, author = {{Hahn, O. and Koyro, M. and Meschut, Gerson}}, issn = {{ISSN 1453-0384}}, journal = {{sudura}}, pages = {{10--13}}, title = {{{Lipirea în combinatie cu îmbinarile obtinute prin deformare}}}, volume = {{2}}, year = {{2002}}, } @article{21051, author = {{Meschut, Gerson}}, journal = {{MP Materialprüfung}}, number = {{7-8}}, pages = {{287--294}}, title = {{{Umformen und Kleben – Fügeverfahren mit neuen Herausforderungen für die Materialprüfung}}}, volume = {{44}}, year = {{2002}}, } @inproceedings{21053, author = {{Jüttner, S. and Meschut, Gerson}}, isbn = {{ISBN 3-932291-34-4}}, location = {{Aalen}}, pages = {{1--10}}, title = {{{Material-Specific Joining Techniques for Magnesium Body Structures}}}, year = {{2002}}, } @inproceedings{21054, author = {{Fricke, A. and Meschut, Gerson}}, location = {{Paderborn}}, pages = {{1--17}}, title = {{{Mechanisches Fügen und Kleben für den Automobil-Leichtbau}}}, year = {{2002}}, } @inproceedings{21055, author = {{Meschut, Gerson}}, booktitle = {{Tagungsband zum Fachkolloquium “Verbindungstechnik im Leichtbau” zum 125-jährigen Bestehen der Böllhoff GmbH}}, location = {{Bielefeld}}, pages = {{93--108}}, title = {{{Hybridfügen im Automobil-Leichtbaubau}}}, year = {{2002}}, } @misc{21225, author = {{Hahn, O. and Meschut, Gerson}}, title = {{{Verfahren und Verbindungsmittel zum Fügen von Blechen}}}, year = {{2002}}, } @misc{21227, author = {{Sebastian, Wolfgang and Meschut, Gerson and Schumann, Sönke and Bohling, Peter}}, title = {{{Verfahren zum Falzen von dünnwandigen Halbzeugen oder Bauteilen aus metallischen Werkstoffen}}}, year = {{2002}}, } @inproceedings{23343, author = {{Nyenhuis, Markus and Rustemeier, Carsten and Dierkes, Ulrich}}, booktitle = {{Fahrzeugschwingungen - Global Chassis Control}}, title = {{{Verteilter strukturierter Entwurf mechatronischer Systeme am Beispiel einer Steer-by-Wire-Lenkung}}}, year = {{2002}}, } @article{23344, author = {{Fischer, Gerd and Heyken, Reent and Trächtler, Ansgar}}, journal = {{ATZ Worldwide 104}}, pages = {{7--10,}}, title = {{{Active stabilisation of the car-trailer combination with BMW X5 An innovative further improvement of the dynamic stability control DSC for active damping of trailer sway movements}}}, year = {{2002}}, } @article{23345, author = {{Fischer, Gerd and Heyken, Reent and Trächtler, Ansgar}}, journal = {{ATZ 104}}, pages = {{330--339,}}, title = {{{Aktive Gespannstabilisierung beim BMW X5 - Eine innovative Weiterentwicklung der Fahrdynamikregelung DSC zur aktiven Bekämpfung von Anhängerpendelschwingungen}}}, year = {{2002}}, } @article{23346, author = {{Trächtler, Ansgar and Liebemann, Edwin}}, journal = {{11. Aachener Kolloquium Fahrzeug- und Motorentechnik}}, pages = {{591--600,}}, title = {{{Vehicle Dynamics Management: ein Konzept für den Systemverbund}}}, year = {{2002}}, } @inproceedings{8926, abstract = {{Piezoelectric transformers are well known since the publication of some patent applications at the end of the 1950s. But until today their only business use lies in the field of backlighting systems for LCDs. Due to key features as light-weight, flatness, high step-up at low volume and high efficiency piezoelectric transformers should be usable in a much broader range of applications. This contribution returns to mind their operating principle, shows how to model and to develop such devices as well as give some aspects for development trends that will lead to further applications.}}, author = {{Hemsel, Tobias and Littmann, Walter and Wallaschek, Jörg}}, booktitle = {{Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE}}, issn = {{1051-0117}}, keywords = {{piezoelectric devices, reviews, transformers, backlighting systems, flatness, high efficiency piezoelectric transformers, high step-up, light-weight, low volume, operating principle, piezoelectric transformers, Circuits, Costs, Electromagnetic devices, Electromagnetic fields, Mechanical energy, Piezoelectric materials, Power electronics, Switching frequency, Transformers, Vibrations}}, number = {{vol.1}}, pages = {{645--648}}, title = {{{Piezoelectric transformers - state of the art and development trends}}}, doi = {{10.1109/ULTSYM.2002.1193485}}, volume = {{1}}, year = {{2002}}, } @inproceedings{8927, author = {{Hemsel, Tobias and Littmann, Walter and Wallaschek, Jörg}}, booktitle = {{47. Internationales Wissenschaftliches Kolloquium}}, title = {{{Piezoelektrische Transformatoren - Bauformen und Modellierung}}}, year = {{2002}}, } @inproceedings{8928, author = {{Panning, Lars and Sextro, Walter and Popp, Karl}}, booktitle = {{Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}}, number = {{GT- 2002-30429}}, title = {{{Optimization of the Contact Geometry between Turbine Blades and Underplatform Dampers with respect to Friction Damping}}}, year = {{2002}}, }