## Fields of research

numerical computations | linear and nonlinear dynamical systems | continuous and discontinuous problems of physics | modeling and identification of dynamical systems | visualization of chaos and bifurcations | numerical control and optimization | theory of automation | synchronization of systems | systems of mechatronics | measurements and data acquisition | quantitative and statistical analysis of data series

Researchgate.net| Scopus.com| Mendeley.com| Orcid.org| ScholarGoogle.pl## About me

I explore fields of various numerical analysis, identification, control and mathematical modeling of dynamical systems. I conduct laboratory classes, lectures and tutorials within the frame of Mechatronics and Automation at my Faculty.

Basically, my research work is oriented to the natural sciences like physics, mathematics and mechanics putting special emphasis on numerical computations, optimization, control in continuous and discontinuous dynamical systems, basic experimental modeling and acquisition of signals. Up to now, I spent about one year (from September 2005 to August 2006) in Ireland, working for industry and having a possibility to get practical knowledge about production and design of hydraulic cylinders.

In 2013 I received D.Sc. degree in Applied Mechanics from Lodz University of Technology. It was preceded by an issue of the monograph that covered special applications of numerical methods for solution of discontinuous dynamical systems.

In age of 27, in 2002, I received Ph.D. degree, defending my Doctoral Thesis in Applied Mechanics with a distinction of experimental research (reviews). In that time I have designed and run a small research stand bringing to a wider audience an experimentally modelled discontinuous (stick-slip) two degrees-of-freedom mechanical system of a duo-servo drum brake mechanism. Numerical and experimental results of the research were published in scientific journals and presented at a couple of national and international conferences.

Since 2000 with the Department of Automation, Biomechanics and Mechatronics of Lodz University of Technology. I give lectures in the theory of control, optimization, mechatronics, programming languages like Scilab/Xcos, Java and LabView, I write scientific papers in the field of analysis, control, identification and optimization of nonlinear dynamical systems. Since 2007, every two years, I am a member of organizing committee of the conference on 'Dynamical Systems — Theory and Applications'. In 2009-2015 I co-worked on structure and the didactic program of studies for the specialization of Mechatronics at the Faculty of Mechanical Engineering.

In 2000, after 5 years of study at the Faculty of Technical Physics, Computer Science and Applied Mathematics I received M.Sc.Eng. degree in Computer Physics from Lodz University of Technology.

In 1995, after 5 years of study at the Technical College in Zduńska Wola (Poland) I received the title "Technician in Machining".

See: Resume, Pedagogical qualifications.

## Main achievements

- Elaboration of a numerical method based on coupled oscillators approach for identification of nonlinear damping of real vibrating systems, for which a free step response is accessible as a time series (based on experimental stand of my Ph.D. thesis). The method was published in 2018 in the journal of 'Mechanical Systems and Signal Processing'.
- Elaboration of an algorithm for approximate numerical solution of planar discontinuous dynamical systems. The method was published in 2013 in my D.Sc. thesis, and in 2015 in the journal of 'Applied Mathematical Sciences'.
- Elaboration of an algorithm for numerical estimation of discontinuous transitions existing in Filippov-type dynamical systems. The algorithm was published in 2013 in my D.Sc. thesis, and in 2014 in the journal of 'Nonlinear Dynamics'.
- Elaboration of a numerical scheme of voltage-input tracking control of direct current motors with friction. The method was published in 2013 in my D.Sc. thesis and in the journal of 'Differential Equations and Dynamical Systems'.
- Elaboration of an experimental stick-slip friction law modeling frictional forces between hard and soft material surfaces subject to irregular intensification of normal load at the contact (in 2002, Ph.D. thesis).
- Elaboration of a numerical procedure for computation of a spectrum of Lyapunov exponents from a non-evenly distributed time series of states of four-dimensional chaotic dynamical system using Lagrange interpolation (in 2001, Ph.D. thesis).

## Laboratory stands

The new laboratory for the course "Systems of Mechatronics", see jpg:

- Control of water level in a system of two connected tanks, see: jpg, 1.avi, 2.avi (postdoctoral).
- Observation of self-excited vibrations and measurement of a kinetic friction characteristics, see jpg (Ph.D. thesis).
- Control of a direct current induction motor and a stepper motor with the use of a development board based on the STM32F4 micro-controller, see jpg (with R. Szczepański).
- Observation and measurement of torsional vibrations of a double torsion pendulum with friction and kinematic excitation, see see PDF (with E. Czerwiński and W. Mirowski).
- An industrial PLC Fatek controller as a PI regulator of a servo with the direct current induction motor, see jpg (with W. Kunikowski).
- Measurement and acquisition of physical quantities in mechatronic systems with the use of the development board FRDM-KL25Z, see jpg (with M. Kwiatkowski).
- Tuning of a PID regulator in a stabilization system of positioning of a camera mounted on the two-axis gimbal rotationally forced by BLDC motors, see jpg (with T. Kubiak).

## Supervisor of Engineer's and Master's theses

- R. Nowakowski:
*Design and implementation of a multiaxial platform for testing the stability of dynamic systems* (Engineer's thesis in Polish, 32 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2018. - J. Grzelak:
*Traffic control at a road crossing using the Finite State Machine technique* (Engineer's thesis in Polish, 60 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2018. - F. Wiądzkowicz:
*Analysis of the dynamics of the circulatory system model on the experimental stand* (Engineer's thesis in Polish, 52 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2018. - M. Rogoziński:
*Synthesis of control systems by the root locus method — a classic and modern approach* (Master's thesis in Polish, 47 p.). Faculty of Mech. Eng.: Automation and Robotics, May 2017. - P. Sobański:
*Synthesis of the position control system of an inverted pendulum using loop shaping method* (Engineer's thesis in Polish, 35 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2016. - W. Dziewiński:
*Mathematical modeling and numerical simulation of dynamics of a nonlinear magnetorheological damper* (Engineer's thesis in Polish, 76 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2015. - J. Karamuz:
*Dynamics of lunching of a badminton shuttlecock in the mathematical model and observation of the real trajectory of flight* (Master's thesis in Polish, 56 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2015. - A. Ślebioda:
*Parameter identification of vibrating systems based on the noisy series of the measurement data* (Master's thesis in Polish, 57 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2015. - R. Szczepański:
*Control of the direct current electrical motors with the use of STM32F4 development board* (Engineer's thesis in Polish, 69 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2015. - T. Kubiak:
*Programming of auxiliary hardware for control of unmanned aerial vehicle in wireless communication* (Engineer's thesis in Polish, 41 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2015. - K. Domżał:
*Acquisition of measurement signals in a laboratory water-level control system* (Engineer's thesis in Polish, 52 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2015. - A. Białkowski:
*Modeling and control of electrohydraulic servomechanisms in LabVIEW* (Master's thesis in Polish, 59 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2014. - P. Ogłaza:
*Vacuum connection for liquid tin transportation in lithography systems used in chips production* (Master's thesis in English, 95 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2014. - M. Szewc:
*Development and implementation of controlling strategy of unmanned aerial vehicle — Quadrocopter* (Master thesis in Polish, 38 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2014. - I. Wojtunik:
*An electronic stabilization system of location of the unmanned flying object* (Master's thesis in Polish, 42 p.). Faculty of Mech. Eng., Mechatronics, Sep. 2014. - W. Kunikowski:
*Fuzzy logic in angular velocity control algorithms of DC motors* (Master's thesis in Polish, 49 p.). Faculty of Mech. Eng.: Mechatronics, July 2014. - W. Mirowski:
*An electronic system for the state variables measurement of a double torsion pendulum with friction and harmonic excitation* (Master's thesis in Polish, 48 p.). Faculty of Mech. Eng.: Mechatronics, July 2014. - E. Czerwiński:
*Modeling and parameter identification of vibrations of a double torsion pendulum with friction* (Master's thesis in Polish, 54 p., J. Lanzendoerfer prize). Faculty of Mech. Eng.: Mechatronics, July 2014. - J. Jung:
*Control of a mobile manipulator with the use of neural networks and spatial recognition algorithms* (Master's thesis in English, 82 p.). Faculty of Mech. Eng.: Mechatronics, July 2014. - P. Głębski:
*Control of a body levitating in the magnetic field with the use of mathematical description and measurements on the laboratory stand* (Master's thesis in Polish, 55 p.). Faculty of Mech. Eng.: Mechatronics, June 2014. - A. Kociak:
*Analog electronic board supporting estimation of time characteristics of the basic elements used in automatic control systems* (Master's thesis in Polish, 64 p.). Faculty of Mech. Eng.: Automation and Robotics, Feb. 2014. - Ł. Gołek vel Amroziak:
*Design of the process of automation of unloading the mantle wall in the production line area* (Engineer's thesis in Polish, 90 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2014. - A. Wijata:
*Mechanisms of common use. Numerical simulations of chosen kinematic pairs and chains in applications designed for Android operating system* (Engineer's thesis in Polish, 77 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2014. - D. Brzozowski:
*DC-DC buck converters* (Master's thesis in Polish, 44 p.). Faculty of Mech. Eng.: Automation and Robotics, Sep. 2013. - D. Chojnacki:
*Dynamical analysis and numerical simulations of process control of the selected chemical reactors* (Master's thesis in Polish, 75 p.). Faculty of Mech. Eng.: Automation and Robotics, Sep. 2013. - K. Gadzinowski:
*Development and implementation of optimization algorithms in distribution of a geometric figures in the specific space* (Master's thesis in Polish, 48 p.). Faculty of Mech. Eng.: Automation and Robotics, Sep. 2013. - J. Wudkowski:
*Analysis of proposed improvements in a graft fixation in anterior cruciate ligament (ACL) reconstruction. Simplified computer visualization* (Engineer's thesis in English, 37 p.). Faculty of Organization and Management: Business and Technology, Feb. 2013. - E. Czerwiński:
*Multifunctional flying module of the quadrocopter type — dynamic modeling and parameter estimation of the real object* (Engineer's thesis in Polish, 103 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2013. - J. Karamuz:
*Experimental stand for an automatic launching of badminton shuttlecocks* (Engineer's thesis in Polish, 53 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2013. - W. Kunikowski:
*Control of rotational velocity of a loaded DC motor with the use of industrial controller FATEK FBs-MC24T* (Engineer's thesis in Polish, 44 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2013. - M. Szewc:
*Multifunctional flying module of the quadrocopter type — computer aided design, technical aspects and realization* (Engineer's thesis in Polish, 78 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2013. - I. Wojtunik:
*Multifunctional flying module of the quadrocopter type — specification and programming of the components of the control system* (Engineer's thesis in Polish, 81 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2013. - M. Kwiatkowski:
*Measurement data acquisition in LabView environment based on selected mechatronic systems* (Engineer's thesis in Polish, 40 p.). Faculty of Mech. Eng.: Mechatronics, Sep. 2012. - M. Niełaczny:
*Dynamical modeling of one-wheel vehicle with a drive assistance system* (Engineer's thesis in Polish, 44 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2012. - M. Zasada:
*Simulation of three-way traffic light on a street crossing in the LabView programming environment* (Engineer's thesis in Polish, 36 p.). Faculty of Mech. Eng.: Mechatronics, Feb. 2012. - M. Samiec:
*Methods of dynamical modeling and control of an inverted pendulum with application of Matlab-Simulink environment* (Engineer's thesis in Polish, 39 p.). Faculty of Mech. Eng., Mechatronics: Feb. 2011.

## Reviewer of Ph.D. theses

- 'Dynamics and Stability of Underactuated Systems with Coupling of Inputs' (in Polish) by Sebastian Korczak, M.Sc.Eng., July 2016. Promoter: Prof. Piotr M. Przybyłowicz, Warsaw University of Technology.

## Invited lectures

'An experimental friction force model and some useful numerical experiment', invitation by Prof. Klaus Zimmermann from the Department of Technical Mechanics at the Technical University of Ilmenau, 2008, see PDF.

## Grants, awards, associations

*Didactic grant of Lodz University of Technology — 1st edition* for the realization of one year project titled: "Development of didactic methods in teaching programming of microprocessor platforms for computations and measurements using the cloud computing Internet technology", 2018.- Associate Member of the Section of Systems Dynamics of the Committee of Mechanics of Polish Academy of Sciences (2016-2020).
- Vice-Chairman of the International Conference on 'Dynamical Systems — Theory and Applications' (DSTA 2017).
- Executor in the research project No. 2012/04/A/ST8/00738 granted by National Center of Science, 2012-2016.
- Executor in the research project No. 0040/B/T02/2010/38 granted by Ministry of Science and Higher Education of Poland, 2010-2012.
- Fellowship in
*Master Program* founded by the Foundation for Polish Science. Project title: 'Active numerical-experimental methods in human organs protection against vibrations and impacts', 2010. - The Lodz University of Technology Rector's Awards for Scientific and Organizational Achievements in years: 2007, 2009, 2012, 2014 and 2017.
- Distinction of Doctoral thesis by the Council of Faculty of Mechanical Engineering of Lodz University of Technology, 2003 (see PDF in Polish).
- Supervisory grant No. 4 T11 005 22 for the Doctoral Thesis supported by the Polish State Committee for Scientific Research, 2002-2003.

## Editorial boards member

## Reviewer in scientific journals

International Journal of Dynamics and Control | Mathematical and Computational Applications | Nonlinear Dynamics | Applied Mathematical Modelling | Mechanical Systems and Signal Processing | Journal of Vibration and Control | Journal of Sound and Vibration | Mathematical Biosciences | Physics Letters A | Neural Computing and Applications | International Journal of Robust and Nonlinear Control | International Journal of Nonlinear Sciences and Numerical Simulation | Journal of Theoretical and Applied Mechanics | Energies | IME, Part C: Journal of Mechanical Engineering Science | Algorithms | Sensors | Advances in Mechanical Engineering | Concurrency and Computation: Practice and Experience | Meccanica | ZAMM | Applied Sciences## Co-edited issues

- 'Vibration Control and Stability of Dynamical Systems' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2017, ISBN 978-83-935312-5-7, 618 p., vol. 1
- 'Mathematical and Numerical Aspects of Dynamical Systems Analysis' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2017, ISBN 978-83-935312-6-4, 628 p., vol. 2
- 'Engineering Dynamics and Life Sciences' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2017, ISBN 978-83-935312-4-0, 634 p., vol. 3
- 'Dyn. Syst. — Mathematical and Numerical Approaches' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2015, ISBN 978-83-7283-706-6, 620 p., vol. 1.
- 'Dyn. Syst. — Mechatronics and Life Sciences' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2015, ISBN 978-83-7283-707-3, 626 p., vol. 2.
- 'Dyn. Syst. — Control and Stability' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). ARSA Publishing, Lodz, POLAND 2015, ISBN 978-83-7283-708-0, 628 p., vol. 3.
- 'Experimental Investigations and Control of Mechanical Systems Dynamics' (with J. Awrejcewicz). Spec. Issue of the
*Int. J. of Dynamics and Control*, Springer, 3(1) Mar. 2015, 15 papers, the issue. Preface in see PDF, 195-197. - 'Dyn. Syst. — Theory' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). The Lodz University of Technology Press, Lodz, POLAND 2013, 523 p.
- 'Dyn. Syst. — Applications' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). The Lodz University of Technology Press, Lodz, POLAND 2013, 756 p.
- 'Modeling and Control of Mechanical/Biomechanical Systems' (with J. Awrejcewicz). Spec. Issue of the
*Theoretical & Applied Mechanics Letters*, Elsevier, 2(4) July 2012, 14 papers, the issue. Editorial in pdf. - 'Dyn. Syst. — Analytical/Numerical Methods, Stability, Bifurcation and Chaos' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). The Lodz University of Technology Press, Lodz, POLAND 2011, 317 p.
- 'Dyn. Syst. — Nonlinear Dynamics and Control' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski). The Lodz University of Technology Press, Lodz, POLAND 2011, 491 p.
- Proc. of 10th Conf. on 'Dyn. Syst. — Theory and Apps.' (with J. Awrejcewicz, M. Kaźmierczak and J. Mrozowski), Lodz, POLAND, Dec. 7-10 (DSTA-2009), 120 papers, 2 volumes, 1007 p.
- Proc. of 9th Conf. on 'Dyn. Syst. — Theory and Apps.' (with J. Awrejcewicz and J. Mrozowski), Lodz, POLAND, Dec. 17-20 (DSTA-2007), 113 papers, 2 volumes, 1022 p.

## Training and workshops

- 'Development of Scientific Career', 29. Nov., 2016.
*The Lodz University of Technology* Training conducted by R. Wojtczak and M. Snarska-Świderska. - 'On how to successfully prepare a proposal for the National Center of Science grant.', 11. Dec., 2015.
*PWN* (Polish Scientific Publishers) Training conducted by V. Kamasa from Adam Mickiewicz University. - 'Public engagement — popularization of science', October 27-28, 2014. Training conducted by P. Toombs (VITAE UK) within the frame of
*SKILLS* — the FNP Project. - 'Workshops on programming of Kinetis L microcontrollers (Freescale Semiconductor, Inc.)', 19. April, 2013. Training organized by
*Farnell Element14 Poland*. - 'Workshops on Problem Based Learning', Feb., 2013 and 2014.
*The Lodz University of Technology* Training conducted by D. Piotrowska, PhD MSc and M. Miller, Assistant Prof. from International Faculty of Engineering. - 'Financing of scientific cooperation by the Ministry of Science and Higher Education — Int. co-financed projects', 16. Nov., 2012. Training conducted by K. Bandau-Palka from the Department of Instruments of the Scientific Politics of MSHE.
- 'Computer aided design — Solid Edge', 10. Feb., 2012. Course organized by the Faculty of Mech. Eng. of TUL (co-financed by UE).

## Associated didactic activity at the University

- Tutor in the
*Team Project* within the Problem Based Learning (PBL, 2014-2016) and the Research PBL (RPBL, 2017-2018) at the International Faculty of Engineering and the Faculty of Mechanical Engineering of LUT. - Faculty Erasmus Program Coordinator of international exchange of the students of Mechatronics (2012-2016).
- Tutor of the specialization of Mechatronics (2012-2016).
- Member of the didactic and program commission of Automation and Robotics (2016-2020).
- Member of the didactic and program commission of Mechatronics (2012-2016).

## Other activity

- Web application designer on Google AppEngine. Projects realized: oleyneec.com (personal), symkom.org, dys-ta.com (CMS).
- Reviewer of proposals aiming at the support of innovative undertakings in Poland within the Priority I of the 'Operational Program — Innovative Economy' (2007-2013), Support for R&D Projects for Entrepreneurs Carried out by Scientific Units (National Center of Research and Development).
- Reviewer of proposals aiming at the improvement of Polish economy and Polish enterprises within the Priority I of the 'Operational Program — Innovative Economy' (2007-2013), Research and Development of Modern Technologies (Department of Implementation of PO IG).

## Presentations at scientific events

- 14th Int. Conf. on 'Dyn. Syst. — Theory and Apps.' Lodz, POLAND, Dec. 11-14, 2017: presentation, poster.
- 13th Int. Conf. on 'Active Noise and Vibration Control Methods', Kraków — Kazimierz Dolny, POLAND, June 12-14, 2017: presentation.
- 9th Int. Conf. on 'Chaotic Modeling and Simulation', University of London, UK, May 23-26, 2016: presentation.
- 13th Int. Conf. on 'Dyn. Syst. — Theory and Apps.' Lodz, POLAND, Dec. 7-10, 2015: presentation.
- 12th Int. Conf. on 'Active Noise and Vibration Control Methods', Kraków — Krynica-Zdrój, POLAND, June 8-11, 2015: presentation.
- 2nd Int. Conf. of Polish Society of Biomechanics — 'Biomechanics 2014', Lodz, POLAND, Sep. 1-3, 2014: presentation.
- 2nd Int. Conf. on 'Mechatronics — Ideas For Industrial Apps.', Lodz, POLAND, May 12-14, 2014: presentation.
- 'XIV Festival of Science, Technology and Art', Lodz, POLAND, April 7-14, 2014: presentation.
- 12th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 2-5, 2013: presentation.
- 5th Int. Conf. on 'Scientific Aspects of Unmanned Mobile Objects', Dęblin, POLAND, May 15-17, 2013: presentation.
- 11th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 5-8, 2011: presentation.
- 1st Int. Conf. of Polish Society of Biomechanics — 'Biomechanics 2010', Warsaw, POLAND, Aug. 25-28, 2010 (presentation).
- IUTAM Symp. on 'Dynamics, Modeling and Interaction Control in Virtual and Real Environments', Budapest, HUNGARY, June 7-11, 2010: presentation.
- 24th Symp. on 'Vibrations in Physical Systems' Poznan — Będlewo, POLAND, May 12-15, 2010: presentation.
- 10th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 7-10, 2009: presentation.
- Joined Confs. 'MES-2009 and OUK-2009', Pisz, POLAND, October 20-23, 2009: poster.
- 53rd IWK 'Prospects in Mech. Eng.', TU Ilmenau, GERMANY, Sep. 8-12, 2008: presentation.
- 9th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 17-20, 2007 (presentation).
- 1st 'Polish Congress of Mechanics', Warsaw University of Technology, POLAND, Aug. 28-31, 2007: presentation.
- 8th Int. Conf. on 'Active Noise and Vibration Control Methods', Kraków — Krasiczyn, POLAND, June 11-14, 2007 (presentation).
- 21st Symp. on 'Vibrations in Physical Systems', Poznań — Kiekrz, POLAND, May 26-29, 2004 (presentation).
- 7th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 8-11, 2003 (presentation).
- 18th All-Polish Scientific-Didactic Conf. on 'Mechanisms and Machines Science' Wrocław — Lądek-Zdrój, POLAND, Sep. 18-20, 2002 (presentation).
- 20th Symp. on 'Vibrations in Physical Systems', Poznań — Błażejewko, POLAND, May 21-25, 2002 (presentation).
- 6th Int. Conf. on 'Dyn. Syst. — Theory and Apps.', Lodz, POLAND, Dec. 10-12, 2001 (presentation).
- 4th German-Greek-Polish Symp. on 'Advances in Mechanics', Warsaw — Pułtusk, POLAND, Sep. 18-22, 2001 (presentation).
- 5th 'School of Modal Analysis', Kraków, POLAND, Dec. 12-14, 2000 (presentation).
- 19th Symp. on 'Vibrations in Physical Systems', Poznań — Błażejewko, POLAND, May 23-27, 2000 (poster).

## Chairman of conference sessions

- 4th Session: 13th Int. Conf. on 'Active Noise and Vibration Control Methods', Kraków — Kazimierz Dolny, POLAND, June 12-14, 2017.
- 4th Session (SCS4-1: "Bifurcation, Pendulum"): 9th Int. Conf. on 'Chaotic Modeling and Simulation', University of London, UK, May 23-26, 2016.
- 3rd Session: 12th Int. Conf. on 'Active Noise and Vibration Control Methods', Kraków — Krynica-Zdrój, POLAND, June 8-11, 2015.
- 5th Session: 2nd Int. Conf. on 'Mechatronics — Ideas For Industrial Apps.', Lodz, POLAND, May 12-14, 2014.