Tätigkeitsgebiet

• Gruppenleiter Vibroakustik/ Adaptive Strukturen für Aktive Lärm -und Schwingungsminderung

Spezialkenntnisse / Spezielle Gerätekenntnisse

• Vibroakustik, Adaptronik, Dämpfung von Schwingungen, Modalanalyse und Maschinendynamik, Messtechnik von Schall und Schwingungen

Publikationen (Auswahl)

• S. M. Kim, S. Pietrzko, M. Brennan, Active vibration isolation using an electrical damper or an electrical dynamic absorber,  IEEE Transactions on Control Systems Technology, to appear 2007
• A. Belloli, D. Niederberger, S. Pietrzko, M. Morari, P. Ermanni, Structural Vibration Control via R-L shunted active fiber composites, Journal of Intelligent Material Systems and Structures OnlineFirst, published on December 13, 2006 as doi:10.1177/1045389X06066029
• S. Pietrzko, Q. Mao, Design of radiation mode sensors by means of piezoelectric fibers, ACTIVE 2006 18-20, Adelaide Australia, September 2006
• C.H. Nguyen, S. Pietrzko, FE-analysis of a PZT-actuated adaptive beam with vibration damping using a parallel R-L shunt circuit, Finite Elements in Analysis and Design 42 No 14-15, 2006, pp 1231-1239
• C.H. Nguyen, S. Pietrzko, FE-analysis of a PZT-actuated adaptive beam with vibration damping using an electric multiple-mode shunt system, Proc. ISMA 2006, Int. Conf. on Noise and Vibration Engineering, Leuven, Sept. 18-20, 2006, pp 461-472
• S. Pietrzko, Q. Mao, Control sound transmission through double wall partitions using optimal tuned Helmholtz resonators, Proc. ISMA 2006, Int. Conf. on Noise and Vibration Engineering, Leuven, Sept. 18-20, 2006, pp 3423-3434
• S. Pietrzko, Q. Mao, Measurements of local volume displacement using a piezoelectric array, Acta Acustica united with Acustica, vol. 92,  2006,  pp 556-566
• Q. Mao,  S. Pietrzko, Control of Sound Transmission Through Double Wall Partitions Using Optimally Tuned Helmholtz Resonators, Acta Acustica united with Acustica,  vol. 91, 2005, pp 723-731
• S. Pietrzko, P. Moll, Model based control of acoustical and vibratory systems,  II ECCOMAS Thematic Conference on Smart Structures and Materials, Lisbon, 2005
• A. Belloli, D. Niederberger, X Kornmann, P. Ermanni, M. Morari, S. Pietrzko, Vibration Control via Shunted Embedded Piezoelectric Fibers. SPIE's 11th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 14-18 March, 2004
• A. Belloli., D. Niederberger , S. Pietrzko, M. Morari, P. Ermanni, Structural Vibration Control via R-L Shunted Active Fiber Composites, International Conference on Adaptive Structures, ICAST 2004, Ben Harbour, October 25-27, 2004, USA
• C.H. Nguyen, S.J. Pietrzko, Piezoelectric-Mechanical-Acoustic Couplings From A PZT-Actuated Vibrating Beam And Its Sound Radiation. Mechanical Systems and Signal Processing 18, 2004, pp 929-945
• C.H. Nguyen, S.J. Pietrzko and R. Bütikofer, The influence of temperature and bonding thickness on the actuation power transfer from PZT-patches into a cantilever beam, Smart  Materials and Structures 13, 2004, pp 851-860
• C.H. Nguyen, X. Kornmann, FEM analysis of the dynamic piezoactuation using PZT fiber-based actuators compared to conventional PZT patches. Proc. ISMA 2004, Int. Conf. on Noise and Vibration Engineering, Leuven, Sept. 20-22, 2004, pp 883-890
• D. Niederberger, S. Pietrzko, M. Morari, Noise Control in a Duct System with Online-tuned Shunted Piezoeletric Materials. SPIE's 11th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 14-18 March, 2004
• D. Niederberger, S. Pietrzko, M. Morari, A New Control Approach for Switching Shunt Damping. SPIE's 11th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 14-18 March, 2004
• C.H. Nguyen, S. Pietrzko, R. Bütikofer, The influence of temperature and bonding thickness on the actuation power transfer from PZT-patches into a cantilever beam, Journal of Smart  Materials and Structures 13, 2004, pp 851-860.
• C.H. Nguyen, S. Pietrzko, Piezoelectric-Mechanical-Acoustic Couplings from A PZT-actuated vibrating beam and its sound radiation, Journal of Mechanical Systems and Signal Processing 18, 2004, pp 929-945, Academic Press.
• O.E. Kaiser, S.J. Pietrzko, M. Morari, Feedback control of sound transmission trough a double glazed window, Journal of Sound and Vibration, 263 (2003), 775-795, Academic Press.
• E. M. Moser, C. Faller, S. Pietrzko, F. Eggimann, Modeling the functional performance of plasma ploymerized thin films, Thin Solid Films 355-356 (1999) 49-54, Elsevier
• S. Pietrzko, R. Hofmann, Prediction of A-Weighted aircraft noise based on measured directivity patterns, Journal of Applied Acoustics 23 (1988), pp.  29-44, UK
• S. Pietrzko, Eine auf Simulationsverfahren basierende Fluglärmprognose, 4 Symposium Simulationstechnik, Informatik-Fachberichte 150, Springer-Verlag, Zürich,  1987,  Schweiz
• A. Belloli., D. Niederberger , S. Pietrzko, M. Morari, P. Ermanni, Structural Vibration Control via R-L Shunted Active Fiber Composites, International Conference on Adaptive Structures, ICAST 2004, Ben Harbour, USA, October 25-27
• D. Niederberger, S. Pietrzko S., M. Morari, Noise control in a duct system with online-tuned shunted piezoeletric materials, SPIE's 11th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 14-18 March, 2004
• A. Belloli, D. Niederberger, X. Kornmann, P. Ermanni, M. Morari,  S. Pietrzko, Vibration control via shunted embedded piezoelectric fibers, SPIE's 11th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 14-18 March, 2004
• C.H.  Nquyen, S. Pietrzko, Actuation transfer in a PZT-actuated beam under effective working conditions, ICSV - 10 th International Congress on Sound and Vibration, Stockholm, SE, July 2003
• D. Niederberger, M. Morari, S. Pietrzko, Adaptive resonant shunted piezoelectric devices for vibration suppression, SPIE's 10th Annual International Symposium on Smart Structures and Materials, San Diego, USA, 2-6 March, 2003
• O. Kaiser, A.A. Julius, S. Pietrzko,  M. Morari, Uncontrollable modes in double wall panels, Proceedings of the 17th International Congress on Acoustics 2001, Rome, Italy, Paper no. 7P.09, September, 2, 2001
• C.H. Nguyen, S. Pietrzko, Analytical and FEM-investigations with experimental validation of a PZT-actuated vibrating beam an its sound radiation. Int. conference on noise and vibration engineering (ISMA 2002), Leuven, Belgium, September 16-18, 2002
• C.H. Nguyen, S. Pietrzko, FEM-investigations of piezoelectric-mechanical-acoustic coupling fields. , In: 20th CAD-FEM Users´ Meeting - Int. congress on FEM technology, Friedrichshafen, Germany, October 9-11, 2002
• S. Pietrzko, R. Bütikofer, Flula - Swiss Aircraft Noise Prediction Program, Acoustics 2002 - Innovation in Acoustics and Vibration, the Australian Acoustical Society annual conference, Adelaide, Australia, November 13-15, 2002
  

Stanislaw J.  Pietrzko
Dr.sc.tech.
Group  Leader:  Vibroacoustics, Active Noise & Vibration Control
Empa - Swiss Federal Laboratories for Materials Testing and Research
Laboratory for Acoustics
Ueberlandstrasse 129
CH-8600 Dübendorf
Switzerland

Tel. +41-1-823 4744 
www.empa.ch/adaptivestructures

Mitgliedschaft in nationalen und internationalen Gremien

• Projektleiter im 6 Rahmenprogramm der EU: INMAR Intelligent Materials for Active Noise Reduction

Ausbildung

• 1978: Dipl El. Ingenieur (Diplom mit Auszeichnung), AGH University of Science and Technology, Krakow
• 1978-1981: Nachdiplomstudium, „Vibroakustik und Schwingungen von Maschinen“, AGH University of Science and Technology, Krakow
• 1992: Dr. sc. tech,  ETH Zürich, Diss. ETH Nr. 9753: „Verfahren zur Identifikation der Dämpfungsmatrix mechanischer Systeme“, Ref. Prof. Dr. Gerhard Schweitzer (Kurzfassung)
• Gastforscher am ISVR-Institut of Sound and Vibration Research-Southampton University und anderen Universitäten