Janis VIBA

Professor Janis VIBA Head of Department of Theoretical Mechanics Riga Technical University Ezermalas iela 6 Riga , LV 1014 Latvia Phone: +371 6708 9332 Fax: +371 6227820094 E-mail: janis.viba@rtu.lv

Born: December 23, 1937, Riga, Latvia

Interests:

• Engineering Mechanics
• Mechanical Engineering
• Vibration and Shock
• Optimal Control
• Auto Crashes

    Brief Description of Main Research:

Development of methods of optimal control theory for impulse or shock systems, practical use of effects of vibration and shock, and protection against vibration, with a view to develop new systems for vibration transporters, vibration hammers, vibration instruments, impact dampers and start - stop drives with adaptive control.

Languages: English, Latvian, and Russian.

Education:

• Riga Technical University (Faculty of Mechanical Engineering), 1960
• Postgraduate, Department of Strength of Materials, Riga Technical University, 1962-1965
• Dr.sc.ing. (Candidate of Sciences in former USSR, Ph.D. in Western countries), Riga Technical University, 1968
• Dr.habil.sc.ing. (Doctor of Sciences in former USSR), Leningrad Polytechnic Institute, Russia, 1983

Experience

Riga Technical University:

• Senior laboratory assistant, Assistant, Department of Production and Automation,   1960-1962
• Doctoral Student, 1962 - 1965
• Senior Lecturer and Associate Professor, Department of Theoretical Mechanics,   1965-1975
• Head of Department of Theoretical Mechanics, 1975 - 2002
• Professor of Department of Theoretical Mechanics, 1983-
• Director of Institute of Mechanics,  1998 -

Honours and Awards:

• Corresponding Member, Latvian Academy of Sciences, 1992 -
• The Latvian Academy of Sciences Fridrih Cander Prize in Mechanics for a series of research “Analysis of Bodies Collisions, Optimizations, and Synthesis in Systems with Adaptive Control, 2004
• Latvian State Prize, 1989.

 

Professional Activities and Memberships:

• Member, Latvian Union of Scientists.
• Expert, Latvian Council of Science, 1990 -
• Member and Chairman of Workshop, Latvian National Committee of Mechanics, 1993 -
• Chairman, RTU Council for Professors' election in branch "Mechanics"
• Member, RTU Promotion Council (Mechanics and Mechanical Engineering)
• Chairman, RTU Students Scientifical and Technical Union, 1976 -
• Member of Presidium of Latvian Professors' Association, 1995 -

Lectures

• Theoretical Mechanics and Cosmos
• Vibrotechnics

Courses

    Riga Technical University:

• Mechanics
• Theoretical Mechanics
• Oscillation and Stability of Technical Systems
• Methods of Optimization

Recent/Representative Publications:

• O. Kepe, J. Viba. Theoretical Mechanics. Riga, 1982, 577 p. (in Latvian).
• J. Viba. Optimisation and Syntheses of Vibroshock Machines. Riga, 1988, 253 p. (in Russian).  
• J. Viba, B.Grasmanis, J.Fontaine. Simultaneously collisions in connected bodies systems.- In: Solid Mechanics and its Application. Vol. 73 (Proceedings of IUTAM / IFToMM Symposium), Riga, Latvia, 24 - 28 August 1998, Kluwer Ac. Publ.: Dordrecht / Boston / London, 1999, pp.267 - 274.
• G.Panovko, O.Berestnev, J.Viba, B.Grasmanis. Setting up of resonance in self controlled oscillator. -In: Solid Mechanics and its Application. Vol. 73 (Proceedings of IUTAM / IFToMM Symposium), Riga, Latvia, 24 - 28 August 1998, Kluwer Ac. Publ.: Dordrecht / Boston / London, 1999, pp.219 - 226
• J.Viba, B.Grasmanis, S.Polukshko, S.Sokolova. Calculation of collisions.- Proceedings of the 1^st Baltic - Bulgarian Conference on Mechanics, Biomechanics and Bionics, June 5 - 7, 2000, Varna, Bulgaria, pp.39 - 42.
• J. Viba, I. Tipans, O. Kononova, J-G. Fontaine . Jumping plane motion of an object controlled by adaptive exitation. - Proceedings of the 2 nd Baltic - Bulgarian Conference on Bionics, Biomechanics and Mechanics, Varna, 2001. pp.26. - 29.
• J. Viba, B. Grasmanis, S. Polukoshko. Calculation of collisions in plane motion of rigid body with additional constraints. – In: The Dynamics of Vibroimpact (Strongly Nonlinear) Systems. Part II. XII Symposium. Abstracts, Moscow-Zvenigorod. 2001 . pp.177 - 180.
• Viba, S. Polukoshko. Motion of Solids, Accompanied by Serial Collisions. – Proceedings of the 3^rd International Conference “Industrial Engineering - New Challenges to SME, 25 - 27. April, 2002. Tallinn, Estonia. p. 70 - 73.
• J. Viba, I. Tipans, B. Grasmanis, J.-G. Fontaine . Adaptive excitation of spring motion of an object across plane obstacles. – Proceedings of Fourteenth CISM-IFToMM Symposium Ro.Man.Sy. Udina, Italy. 2002.
• Viba, I. Tipans, B. Grasmanis, J.-G. Fontaine. Adaptive excitation of jumping motion of an object over plane obstacles. – Proceedings of International Conference of Robots and Manipulators, ENSIB - Bourges, France, April. 2002.
• J.Viba, S.Polukoshko. Simultaneous collisions of rigid bodies in more than one point. – Proceedings of 4^th International DAAAM Conference “Industrial Engineering – Innovation as Competitive Edge for SME”, April 2004, Tallinn, Estonia, pp.298-301.
• T. Akinfiev, M. Armada, J. Viba. Synthesis of vibro-cutting systems with time and adaptive control.  5th International DAAAM Conference  "Industrial Engineering - Innovation as Compettitive Edge for   SME",  20 - 22th April 2006, Tallinn, Estonia. P. 107 -112.
• Viba J., Lavendelis E. Algorithm of synthesis of strongly non-linear mechanical systems. -  5th International DAAAM Conference "Industrial Engineering - Innovation as Compettitive Edge for  SME",  20 - 22th April 2006, Tallinn, Estonia. P. 95 – 98.
• Wang, XiYi, Viba J., Mironovs V. Pizelis I. Investigation of vibrator with air flow excitation. -  5th International DAAAM Conference  "Industrial Engineering - Innovation as Compettitive Edge for  SME",   20 - 22th April 2006, Tallinn, Estonia. P. 85 – 88.
• S. Cifanskis, M. Armada, T. Akinfiev, J. Viba. Investigation of high voltage impulse system for granulating materials. - 1st. International Conference on Vibro-impact Systems. 20-22 July 2006. Loughborough, UK, Book of Abstracts. P. 16.- 17. www.lboro.ac.uk/icovis.
• O. Kononova, J. Viba, A. Krasnikovs. Numerical simulation of waves by finite differences method in vibro-impact systems. - 1st. International Conference on Vibro-impact Systems. 20-22 July 2006. Loughborough, UK, Book of Abstracts. P. 24. www.lboro.ac.uk/icovis.
• V. Mironovs, J. Viba, V. Lapkovskis. Investigation of impulse system for moving powder materials in vertical pipe. - 1st. International Conference on Vibro-impact Systems. 20-22 July 2006. Loughborough, UK, Book of Abstracts. P. 30 - 31. www.lboro.ac.uk/icovis.
• M. Eiduks, XiYi Wang, J. Viba, V. Mironovs. Analysis of objects motions in the wind tunnel and tube. - XV Symposium of Dynamics of Vibroimpact Systems. Moscow, 2006. pp. 329 - 333.
• G. Liberts, J. Viba, M. Eiduks, L. Shtals. Investigation of car crashes with large deformations.- XV Symposium of Dynamics of Vibroimpact Systems. Moscow, 2006. pp. 333 - 338.
• J. Viba, E. Mjalo. Motion of axle-box between delimiters of vibrating pendulum. - XV Simposium of Dynamics of Vibroimpact Systems. Moscow, 2006. pp. 339 - 343.
• XiYi Wang, J. Viba, I. Pizelis, L. Shtals. Optimization and synthesis of vibrator with air flow excitation. - XV Simposium of Dynamics of Vibroimpact Systems. Moscow, 2006. pp. 344 - 348.

Research Projects:

• E. Lavendelis, INCO - COPERNICUS Project 960054. Efficient Start-Stop Intelligent Drives with Adaptive Control. (Spain, France, Russia, Byelorussia, Latvia) (1997 - 1999).
• J. Viba. (Head of Project). Investigation of Oblique Impact and Adaptive Control for High-Speed Machines. Latvian Council of Science (1994 - 1996).
• J. Viba (Head of Project). Investigation of Collisions of Bodes in Start-Stop Systems with Adaptive Control. Latvian Council of Science (1997 - 2000).
• J.Viba (Head of Project). Optimal Synthesis of Adaptive Controlled Intelligent Vibroimpact Systems with Line, Surface and Volume Interactions. Latvian Council of Science (2001 - 2004).
• J.Viba (Head of Project). Analysis, Optimisation and Synthesis of Self-Exciting Vibroimpact Macroscopic Systems by Using Micro Interaction of Elements. Latvian Council of Science (2005 - ).

Recreation: Sports, Fishing, Hunting

Last update 07.03.2007