LASIN - Laboratory of Synergetics

University of Ljubljana | Faculty of Mechanical Engineering

Research

Research activities
  • Description of nonlinear and chaotic dynamic phenomena
  • Time series analysis
  • Empirical modelling, development and application of artificial neural networks
  • Development of adaptive methods for process monitoring, characterization, prediction and optimisation
  • Research and characterization of acoustic emission phenomena
Core publications
  • JEROMEN, Andrej, GRABEC, Igor, GOVEKAR, Edvard (2008). Laser pulse transient method for measuring the normal spectral emissivity of samples with arbitrary surface quality. Appl. phys., A, Mater. sci. process. (Print), 2008, letn. 92, št. 4, str. 945-949.
  • ROZMAN, Robert, GRABEC, Igor, GOVEKAR, Edvard (2008). Influence of absorption mechanisms on laser-induced plasma plume. Appl. surf. sci.. [Print ed.], 2008, letn. 254, št. 11, str. 3295-3305.
  • ROZMAN, Robert, KMETEC, Blaž, PODOBNIK, Boštjan, KOVAČIČ, Drago, GOVEKAR, Edvard (2008). Optimisation of direct laser structuring of printed circuit boards. Appl. surf. sci.. [Print ed.], 2008, letn. 254, št. 17, str. 5524-5529.
  • GOVEKAR, Edvard, JERIČ, Anže (2009). Laser droplet generation: Application to droplet joining. CIRP ann., 2009, vol. 58, iss. 1, str. 205-208.
  • BORŠTNIK, Anamarija, GRABEC, Igor, GOVEKAR, Edvard (2009). Modeling spatio-temporal field evolution. Eur. phys. j., B Cond. matter phys. (Print), 2009, issue 4, vol. 69, str. 529-538.
  • JERIČ, Anže, GRABEC, Igor, GOVEKAR, Edvard (2009). Laser droplet welding of zinc coated steel sheets. Sci. technol. weld. join., 2009, vol. 14, no 4, str. 362-368.
  • B. Krese, T. Perc, E. Govekar (2010): Dynamics of laser droplet generation, xxx, Chaos, 2010, xxxx-xxx
  • Potočnik P., Thaler M., Govekar E., Grabec I., Poredoš A. (2007): Forecasting risks of natural gas consumption in Slovenia. Energy Policy, Vol. 35, pp. 4271-4282
  • Grabec I. (submitted 2006): Experimental information and statistical modeling of physical laws, submitted to IEEE Transactions on Information Theory, arXiv:cs.IT/0612027 v1 5. Dec 2006
  • Kokalj T., Klemenčič J., Mužič P., Grabec I., Govekar E. (2006): Analysis of a laser droplet formation process, J. manuf. sci. eng., Vol. 128 (1), pp. 307-314
  • Grabec I. (2005): Extraction of physical laws from joint experimental data, European Physical Journal - B, 48, pp. 279-289, DOI: 10.1140/epjb/e2005-00391-0
  • Potočnik P., Govekar E., Grabec I. Mužič P. (2005): Psychoacoustic approach to machine fault diagnosis, International Journal of Acoustics and Vibration, Vol. 10 (3), pp. 131-136
  • Mandelj S., Grabec I., Govekar E. (2004): Nonparametric statistical modeling of spatiotemporal dynamics based on recorded data, Int. j. bifurc. chaos appl. sci. eng., Vol. 14 (6), pp. 2011-2025
  • Govekar E., Klemenčič J., Kokalj T., Jahrsdörfer B., Mužič P., Grabec I. (2004): Characterisation of a laser droplet formation process by acoustic emission, Ultrasonics, Vol 42 (1), pp. 99-103
  • Grabec I., Mandelj S. (2003): Experimental Modeling of Chaotic Fields, Progr. Theoret. Phys., pp-150, pp. 81-88
  • Gradišek J., Baus A., Govekar E., Klocke F., Grabec I. (2003): Automatic chatter detection in grinding, International Journal of Machine Tools & Manufacture, Vol. 43, No. 14, pp. 1397-1403
  • Potočnik P., Grabec I. (2002): Nonlinear model predictive control of a cutting process Neurocomputing, Vol. 43 (1-4), pp. 107-126
  • Grabec I. (2001): Experimental Modeling of Physical Laws, Eur. Phys. J., B 22, pp. 129-135
  • Gradišek J., Govekar E., Grabec I. (2001): Chatter onset in non-regenerative cutting: A numerical study, Journal of Sound and Vibration, Vol. 242, No. 5, pp. 829-838

Most cited publications
  • Govekar E, Gradisek J, Grabec I (2000). Analysis of acoustic emission signals and monitoring of machining processes. ULTRASONICS, Volume: 38 Issue: 1-8 Pages: 598-603 Published: MAR 2000, Times Cited: 25
  • Gradisek J, Govekar E, Grabec I (1996). A chaotic cutting process and determining optimal cutting parameter values using neural networks. INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE Volume: 36 Issue: 10 Pages: 1161-1172 Published: OCT 1996, Times Cited: 25
  • GOVEKAR E, GRABEC I (1994). SELF-ORGANIZING NEURAL-NETWORK APPLICATION TO DRILL WEAR CLASSIFICATION. JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME Volume: 116 Issue: 2 Pages: 233-238 Published: MAY 1994, Times Cited: 21
  • Gradisek J, Govekar E, Grabec I (1998). Time series analysis in metal cutting: Chatter versus chatter-free cutting. MECHANICAL SYSTEMS AND SIGNAL PROCESSING Volume: 12 Issue: 6 Pages: 839-854 Published: NOV 1998, Times Cited: 24
  • Gradisek J, Siegert S, Friedrich R, et al. (2000). Analysis of time series from stochastic processes. PHYSICAL REVIEW E Volume: 62 Issue: 3 Pages: 3146-3155 Part: Part A Published: SEP 2000, Times Cited: 53
  • Gradisek J, Govekar E, Grabec I (1996). A chaotic cutting process and determining optimal cutting parameter values using neural networks. INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE Volume: 36 Issue: 10 Pages: 1161-1172 Published: OCT 1996, Times Cited: 25
  • GRABEC I (1988). CHAOTIC DYNAMICS OF THE CUTTING PROCESS. INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE Volume: 28 Issue: 1 Pages: 19-32 Published: 1988 Times Cited: 64

Organization of events