prof. Ing. Václav Píštěk, DrSc.
E-mail:   pistek.v@fme.vutbr.cz  Dept.:   Institute of Automotive Engineering Dept. of Powertrain Position:   Professor Room:   A1/0725

Supervised courses:

• Driving Mechanisms (QHL)
• Engine Dynamics (9DSM)

Publications:

• PÍŠTĚK, V.; SVÍDA, D.:
  Advanced Computational Models of Elastomer Parts in Automotive Technology,
  Perners' Contacts, Vol.X, (2015), No.2, pp.43-52, ISSN 1801-674X, Perners Contacts
  journal article - other
• KOTEK, L.; PÍŠTĚK, V.; JONÁK, M.:
  Bivariate Process Capability Analysis of Fuel Injection Nozzles Production, World Scientific and Engineering Academy and Society
  journal article in Scopus
• PÍŠTĚK, V.; MAUDER, T.; KLIMEŠ, L.:
  Nonlinear optimization of generalized Kelvin-model parameters with the use of mathematical programming,
  Proceeding of International Conference Transport Means 2014, pp.277-280, ISBN 9955-09-935-6, (2014), Kaunas University of Technology, K. Donelaičio st. 73, LT-44029 Kaunas
  conference paper
  akce: Transport means 2014, Kaunas, 23.10.2014-24.10.2014
• KUČERA, P.; PÍŠTĚK, V.:
  VIRTUAL DIESEL ENGINE IN SIMULINK,
  Perners' Contacts, Vol.VIII, (2013), No.2, pp.95-105, ISSN 1801-674X, PERNER'S CONTACTS
  journal article - other
• PÍŠTĚK, V.; NOVOTNÝ, P.:
  Stirling Engine Development using Virtual Prototyping,
  Mechatronics Recent Technological and Scientific Advances, pp.115-119, ISBN 978-3-642-23243-5, (2011), Springer-Verlag Berlin Heidelberg
  conference paper
  akce: 9th International Conference Mechatronics 2011, Varšava, 21.09.2011-24.09.2011
• NOVOTNÝ, P.; PÍŠTĚK, V.; DRÁPAL, L.; AMBRÓZ, R.:
  Development of Aircraft Diesel Engine for Military Use,
  Advances in Military Technology, Vol.2011 (6), (2011), No.1, pp.5-20, ISSN 1802-2308, University of Defence
  journal article - other
• NOVOTNÝ, P.; PÍŠTĚK, V.:
  Virtual Engine - A Tool for a Powertrain Dynamic Solution, Strojniški vestnik - Journal of Mechanical Engineering
  journal article in Web of Science
• NOVOTNÝ, P.; PÍŠTĚK, V.:
  New efficient methods for powertrain vibration analysis, Professional Engineering Publishing
  journal article in Web of Science

List of publications at Portal BUT

Abstracts of most important papers:

• NOVOTNÝ, P.; PÍŠTĚK, V.; DRÁPAL, L.:
  Modeling of Piston Ring Pack Dynamics,
  MECCA - Journal of Middle European Costruction and Design of Cars, Vol.2011, (2011), No.3, pp.12-20, ISSN 1214-0821, ČVUT v Praze
  journal article - other
  Piston rings play an important role in the lubricant characteristic of reciprocating engines with the consequences on engine wear, power losses and a vast amount of lubricating oil consumption. The computational solution of piston ring dynamics is a very complex problem and it requires multiple numerical approaches supplemented by suitable inputs. The paper demonstrates the principles of the numerical solution of piston ring dynamics in mixed lubrication conditions incorporating a virtual engine and experimental inputs. The simulation algorithm is incorporated into user guided interface and it is available for industry usages. The solution results are presented on a diesel turbocharged engine with three piston ring configuration.
• PÍŠTĚK, V.; NOVOTNÝ, P.:
  Stirling Engine Development using Virtual Prototyping,
  Mechatronics Recent Technological and Scientific Advances, pp.115-119, ISBN 978-3-642-23243-5, (2011), Springer-Verlag Berlin Heidelberg
  conference paper
  akce: 9th International Conference Mechatronics 2011, Varšava, 21.09.2011-24.09.2011
  A successful realization of Stirling engines is conditioned by its correct conceptual design and optimal constructional and technological mode of all parts. Initial information should provide computation of real cycles of the engines. The information form base engine dimensions like piston bore or piston stroke. After that more sophisticated methods can be used for the development. The paper presents calculation models and results of dynamics and thermodynamic cycles of the external heat supply engines. High-level FE (Finite Element), MBS (Multi Body System) or CFD (Computational Fluid Dynamics) models arising from the description of real processes which run in an external heat supply engine are used for virtual prototype of 3 kW Stirling engine with Rhombic mechanism.
• NOVOTNÝ, P.; PÍŠTĚK, V.:
  Virtual Engine - A Tool for a Powertrain Dynamic Solution, Strojniški vestnik - Journal of Mechanical Engineering
  journal article in Web of Science
  The paper presents computational and experimental approaches to a powertrain vibration analysis. A complex computational model of a powertrain - a virtual engine is a powerful tool for a solution of structural, thermal and fatigue problems. The virtual engine results should answer different questions, mainly those concerning the area of noise, vibrations and component fatigues. The paper also includes a description of fast algorithm for a hydrodynamic solution of a slide bearing incorporating pin tilting influences. The main contribution is the fact that all models, that is those of a cranktrain, a valvetrain, a gear timing mechanism and a fuel injection pump are solved simultaneously, using a complex computational model. Synchronous solutions can have a fundamental effect on results of powertrain dynamics solutions. Additionally, it might help to understand influences among powertrain parts. The virtual engine is assembled as well as numerically solved in Multi Body System. Virtual engine results are validated by measurements on Diesel in-line six-cylinder engine.
• NOVOTNÝ, P.; PÍŠTĚK, V.; SVÍDA, D.:
  Solution of powertrain friction losses by virtual engine,
  MECCA - Journal of Middle European Costruction and Design of Cars, Vol.2010, (2010), No.3, pp.12-20, ISSN 1214-0821, ČVUT v Praze
  journal article - other
  The paper presents computational methods suitable for the solution of powertrain mechanical losses using the virtual engine. There are presented mainly computational models for the solution of friction losses of a piston assembly, slide bearings or valvetrain contact couples. Mixed lubrication is solved in detail for the specified powertrain parts. Hydrodynamic parts of solutions come from the Reynolds equation solution. A boundary lubrication model includes influences of surface roughness on contact pressure. Mechanical loss results for main powertrain parts are presented for the diesel in-line four-cylinder engine. The chosen computational results are validated by measurements.
• NOVOTNÝ, P.; PÍŠTĚK, V.:
  Hydrodynamic Calculations In Powertrain Vibration Simulation,
  Mendel 2010, pp.387-394, ISBN 978-80-214-4120-0, (2010)
  conference paper
  akce: MENDEL 2010 - 16th International Conference on Soft Computing, Brno University of Technology, 23.06.2010-25.06.2010
  The paper presents a new efficient computational model of a slide bearing. The slide bearing computational model is used as a submodule of the powertrain model. A complex computational model of a powertrain, a virtual engine, is a powerful tool for the solution of structural, thermal and fatigue problems. The virtual engine results have to give answers to different questions, mainly those concerning the area of noise, vibrations and component fatigues. The paper includes a description of fast algorithm for a hydrodynamic solution of a slide bearing incorporating pin tilting influences. The hydrodynamic problem solution incorporates variable multigrid strategies. This approach enables a fast solution of the powertrain model including tens of slide bearings.