Laboratories and classrooms

Preparation of samples and prototypes (B421)

Resp. person: Ing. Ján Kostka, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Analysis of technical systems (B428)

Resp. person: doc. Ing. Peter Sivák, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory of experimental stress analysis (B430)

Resp. person: doc. Ing. Peter Sivák, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is focused on experimental analysis of deformations and stresses by tensometric methods, especially by the method of electrical resistance tensometry. It is used for the production of samples or experimental objects in general, for their preparation and implementation of strain gauges. It is available to students for regular teaching and for activities related to the implementation of final (bachelor's, diploma, dissertation) theses. It is also available to department´s pedagogical and scientific staff for the purposes of scientific research. It is equipped with standard measuring technology (experimental equipment) based on electrical resistance tensometry and all necessary accessories.

 

Technical equipment

• Portable Strain Indicator VISHAY P-3500
• Switch and Balance Unit VISHAY SB-10

 

Subject taught

• Theory of engineering experiment

• Experimental methods of mechanics

 

 

Laboratory of resistance tensometry and redistribution of residual stresses (B431)

Resp. person: Ing. Ján Kostka, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is focused on the development and application of tensometric methods in experimental analysis of mechanical systems. The expertise activity of the laboratory is focused on:

• determination of the load of structures using resistance strain gauges,
• analysis of residual stresses using semi-destructive methods.

 

Technical equipment

Vishay RS-200

• system for determination of residual stresses by hole-drilling method,
• purely mechanical system,
• possibility to implement slow-speed and high-speed drilling.

SINT MTS-3000

• system for determination of residual stresses by hole-drilling method,
• automated system,
• high-speed drilling with a hole diameter of 1.6 mm.

SINT MTS-3000 Ring Core

• system for determination of residual stresses by Ring-Core method,
• automated system,
• forming an annular groove.

Strain gauges:

• HBM Spider 8
• Vishay P-3
• Vishay P-3500 a SB-10

 

Subject taught

• Theory of engineering experiment
• Experimental methods of mechanics
• Diploma thesis and Bachelor thesis

 

Laboratory of modern optical methods of mechanics (B419)

Resp. person: doc. Ing. Róbert Huňady, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is focused on the development and application of modern optical methods in experimental analysis of mechanical systems.The expertise activity of the laboratory is focused on:

• determination of material properties of conventional and unconventional materials, such as composites, rubber, plastics, etc.,
• full-field stress-strain analyzes and testing of various structural elements under static or dynamic loading (impact tests),
• vibration analysis of mechanical systems (operational vibration, vibrodiagnostics),
• experimental and operational modal analysis.

 

Technical equipment

Q-400 Dantec Dynamics (3D DIC)

• High resolution 3D digital image correlation
• Allows full-area non-contact measurement of 3D displacements and relative deformations under static load.
• Camera sensor CMOS resolution: 5 Mpx
• Measuring range: mm² – m²
• Measurement sensitivity: 1/100,000 of image field (approx. tenths of μm)
• Application: Component testing. Determination of material properties.

Q-450 Dantec Dynamics (3D DIC High-speed)

• 3D high-speed digital image correlation
• Allows full-area non-contact measurement of 3D displacements and relative deformations under dynamic loading and motion (including impact).
• Camera sensor CMOS resolution: 1 Mpx
• Dynamic range: 3140 fps at full sensor resolution. At a reduced resolution of up to 50,000 fps.
• Measuring range: mm² – m²
• Measurement sensitivity - Displacements: units μm, Relative deformations: 10^-4 strain
• Application: Component testing. Determination of material properties. Vibration analysis. Experimental modal analysis. Measuring of fast events.

Q-300 Dantec Dynamics (3D ESPI)

• 3D electronic speckle interferometry (uses coherent laser light for measurement)
• Allows full-area high-precision measurement of displacements and relative deformations in space under static or thermal loads.
• Measurement sensitivity - Displacements: 0.03 - 0.1 μm, Relative deformations: 10^-6 strain
• Max. measuring area: 200x300 mm
• Application: High-sensitivity stress-strain analysis. Component testing. Determination of material properties. Determination of stress concentrators.

Measuring platform PULSE^TM Brüel & Kjær

• Universal measuring platform for measuring and analyzing of vibration and sound. It is based on a modular multi-channel multi-analyzer consisting of Lan-XI modules and a comprehensive software package Pulse LabShop with advanced analytical tools focused on specific expert activities.
• Frequency range: 0 - 51.2 kHz
• Dynamic range: 120 to 160 dB (depending on bandwidth)
• Possibility to connect CCLD sensors with ICP® and DeltaTron® support, or sensors with direct voltage output.
• Applications: Experimental modal analysis, operational vibration analysis, vibrodiagnostics, noise analysis.

Polytec PDV-100

• Single point laser vibrometer for vibration analysis.
• Max. measuring range: 500 mm/s
• Frequency range: 0 - 22 kHz
• Working distance: 0.1 - 30 m
• Application: Measurement of structure vibration responses.

  

Subject taught

• Theory of engineering experiment
• Experimental methods of mechanics
• Modal analysis of mechanical systems
• Vibrations of mechanical systems
• Diploma thesis and Bachelor thesis

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Laboratory of transmission photoelasticimetry (B418)

Resp. person: doc. Ing. Miroslav Pástor, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is focused on full-field stress and deformation analysis of complex components using the laws of model similarity with the aim to:

• identify stress concentration points and quantify the magnitude of stresses and strains at these points,
• highlight areas with low and high stress levels,
• optimize the distribution of stresses in machine parts in order to reduce their weight and increase reliability,
• design a procedure for the elimination of stress peaks so that they are reduced to the required value,
• determine the main normal stresses and their directions at different points of the model.

The advantage of transmission photoelasticimetry is the ability to repeatedly perform measurements at different loads without the need to produce a new model.

 

Laboratory goals

• To obtain knowledge about the possibilities and application of experimental optical methods of mechanics in technical practice.
• To acquaint students with the place and role of experimental methods in solving complex problems and technical problems of engineering practice by experimental modeling in conjunction with computational and numerical modeling.
• To deepen students' theoretical knowledge and technical skills in the design and implementation of experimental measurement itself.
• To develop their ability to choose the right methods and means of experimental mechanics and the ability to draw relevant conclusions from the performed experimental analyzes, leading to the solution of scientific and technical problems by experimental modeling

 

Technical equipment

• Transmission polariscope Model 060

 

  Subject taught

• Theory of engineering experiment
• Experimental methods of mechanics
• Diploma thesis and Bachelor thesis

  

Laboratory of reflective photoelasticimetry Photostress(B417)

Resp. person: prof. Ing. Peter Frankovský, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

Quantitative and qualitative stress analysis using optically sensitive materials. Stress analysis of real objects by application of optically sensitive coatings under static and dynamic loading, with a semi-automated cycle of determining the stress at the point of the measured object.

 

Technical equipment

• reflective polariscope Vishay LF/Z-2,
• reflective polariscope Vishay Model 040,
• reflective polariscope Vishay Model 030 with electronic evaluation unit,
• stroboscopic system Vishay Model 23B,
• equipment for casting optically sensitive plates,
• universal loading system.

 

  Subject taught

• Theory of engineering experiment
• Experimental methods of mechanics
• Diploma thesis and Bachelor thesis

  

Laboratory of materials testing (As03)

Resp. person: doc. Ing. Róbert Huňady, PhD.

Location: Letná 9, Main building, -1. floor, B-block

 

Laboratory’s areas of expertise

Tensile tests at static loads, at different modes of dynamic loads (depending on the prescribed deformation or force), determination of strength at low cycle fatigue. Application of holographic interferometry for identification of deformations of loaded elements.

 

Technical equipment

• FPZ 100/1 tearing test machine with accessories for measuring in various load modes.
• Optical table with pneumatic suspension.

  

  Subject taught

• Theory of engineering experiment
• Experimental methods of mechanics
• Diploma thesis and Bachelor thesis

 

Modeling of mechanical systems (B426)

Resp. person: Ing. Pavol Lengvarský

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The worklace is focused on the application of computational methods of mechanics in the design and analysis of mechanical systems using the latest software tools CAE and CAD. Students are educated and gain practical experience that can be used in their further course of study and subsequently in engineering practice. The workplace includes thirteen workstations (PC), an interactive whiteboard with a projector and a multimedia projector, which contribute to quality teaching.

 

Workplace software

• Siemens NX NX Nastran
• SIMULIA Abaqus/CAE
• Ansys
• SolidWorks
• Matlab
• MSC.Adams

 

Subject taught

• Applications of computer and experimental methods of mechanics in mechanical engineering (SI, Ing.)
• Computational Mechanics (SI, Bc.)
• Numerical Methods of Mechanics I and II (SI, Eng.)
• Dynamics of Mechanical Systems (SI, Bc.)
• Computer Simulation of Mechanical Systems (SI, BSc.)
• Vibrations of Mechanical Systems (SI, Eng.)
• Noise and Vibration (SI, Eng.)
• Use of Matlab in Mechanics (SI, BSc.)
• Monitoring and data analysis in experiment (SI, B.Sc.)
• Software Applications in Mechanics (SI, BSc.)
• Mechanisms of Machinery (SI, Eng.)
• Theses and dissertations (SI, Eng./Bc.)
• Semester project (SI, Ing.)

Research and development laboratory of ZTS VVÚ KOŠICE a.s. and TUKE SjF for numerical and experimental optimization of load-bearing elements of mechanical structures, TENLAB (B427)

Resp. person: doc. Ing. Miroslav Pástor, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is mainly focused on stress and strain analysis under dynamic loading using tensometry. Students can deepen and verify theoretical knowledge of subjects such as Flexibility and strength, Mechanics while solving specific problems on measuring chains they designed. To verify the results obtained by analytical calculation, they use not only experimental measurements but also numerical modeling based on the finite element method.

The implementation of experimental measurement consists in the design of the analyzed object (creation of drawing documentation, choice of material...), preparation of the loading device, determination of the type of measured deformation, etc. Among other things, students must master the techniques of measurement and signal processing. An illustrative example is the choice of the type of strain gauge sensor, which is determined by:

• size and shape of the sensor,
• sensitivity to the measured quantity and external influences (temperature, humidity, etc.),
• stability of sensor and apparatus parameters with time,
• accuracy, which is defined by the linearity of the registered data and the measured quantity,
• possibilities and place of reading and registration (at the place of measurement, possibly by means of remote or multi-digit recording),
• costs and availability.

 

Laboratory goals

• The study of high-speed dynamic phenomena on the mechanical elements of intelligent robotic systems is closely linked to the need to determine the time courses of the response to external loads.
• Gain knowledge about the possibilities and application of tensometry in technical practice.
• To acquaint students with the place and role of experimental methods in solving complex problems and technical problems of engineering practice by experimental modeling in conjunction with computational and numerical modeling.
• To deepen students' theoretical knowledge and technical skills in the design and implementation of experimental measurement itself.
• To develop their ability to choose the right methods and means of experimental mechanics and the ability to draw relevant conclusions from the performed experimental analyzes, leading to the solution of scientific and technical problems by experimental modeling.

 

Technical equipment

• MX840B - 8-channel strain gauge with max. sampling frequency 19,2 kHz.
• MX410B - 4-channel strain gauge with max. sampling frequency 96 kHz.
• MX460B - 4-channel frequency meter amplifier with max. sampling frequency 96 kHz.
• MX1609B - 16-channel temperature meter using thermocouples with max. sampling frequency 300 Hz.
• CX27 - Device for communication between individual modules of the Quantum series.
• Gen5i - High-speed strain gauge measuring station with max. sampling frequency up to 1 MHz.

 

Workplace software

• Catman Profesional
• Catman Easy
• Perception 64

 

  Subject taught

• Applications of computer and experimental methods of mechanics in mechanical engineering
• Theory of engineering experiment
• Experimental methods of mechanics
• Diploma thesis and Bachelor thesis

 

Laboratory of computer aided modeling (B425)

Resp. person: doc. Ing. Róbert Huňady, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The laboratory is focused on the application of computational methods of mechanics in the design and analysis of computer models of mechanical systems. The laboratory is used for educational purposes and professional training of students from several study programms of the Faculty of Mechanical Engineering. As part of this training, students gain practical experience in working with software tools in the field of CAE, CAD and information technology, which are commonly used in engineering practice. Depending on the subject, students learn to:

• create plane and volume models of parts or assemblies,
• create mathematical and numerical models of mechanical systems,
• perform static, kinematic and dynamic simulations of rigid body systems,
• analyze stress-strain states using the finite element method.

 

Workplace software

• Siemens + NX Nastran
• SolidWorks
• Matlab
• MSC.Adams, MSC.Nastran, MSC.Dytran, MSC.Mark

  

Subject taught

• Computer models of mechanical systems (SI, Bc.)
• Applications of Matlab in Mechanics(SI, Bc.)
• Monitoring and data analysis in experiment(SI, Bc.)
• Software Applications in Mechanics(SI, Bc.)
• Theses and dissertations (SI, Eng./Bc.)
• Semester project (SI, Ing.)

 

Analysis of mechanical systems (B432)

Resp. person: Ing. Martin Hagara, PhD.

Location: Letná 9, Main building, 4. floor, B-block

 

Laboratory’s areas of expertise

The training workplace is primarily used for teaching computational methods of mechanics, but at the same time it also serves as a lecture room of the department with a capacity of approximately 20 students. Exercises are focused on preparing students to work with modern software tools in the field of computer modeling, calculations, creation of production processes, etc. Depending on the subject, students learn to:

• create plane and volume models of parts or assemblies,
• create mathematical and numerical models of mechanical systems,
• perform static, kinematic and dynamic simulations of rigid body systems,
• analyze stress-strain states using the finite element method.

The activities of the training workplace also include professional seminars, which are held regularly under the auspices of the head of the department and which are intended for students and staff. Lectures are led by renowned researchers from Slovak and foreign universities, or academies of sciences. For students of the study programs Applied Mechanics and Mechanical Engineering, additional semester courses of numerical modeling (NX Nastran, Abaqus, ...) are organized.

The workplace also includes a scientific library (room no. 418B), which is focused on important current book publications, especially in the field of machine technology, nanomaterials, mechanics and experimental and numerical modeling.

 

Technical equipment

The room is equipped with 15 high-performance computers, an interactive whiteboard and a video projector.

 

Workplace software

• Siemens NX NX Nastran
• SIMULIA Abaqus/CAE
• Ansys
• SolidWorks
• Matlab
• MSC.Adams
• individual licenses for programs: Rhinoceros 5.0 (1pc), AutoCAD 2015 (3pcs), Minitab 17 (1pc), Mach 3 CNC (1 pc), SolidCAM (1pc), Win PC-NC (2pcs)

 

  Subject taught

• Applications of computer and experimental methods of mechanics in mechanical engineering (SI, Ing.)
• Computational Mechanics (SI, Bc.)
• Numerical Methods of Mechanics I and II (SI, Eng.)
• Nonlinear Mechanics and Continuum Mechanics (SI, Eng.)
• Computer Simulation of Mechanical Systems (SI, Bc.)
• Vibrations of Mechanical Systems (SI, Eng.)
• Applications of Matlab in Mechanics (SI, BSc.)
• Monitoring and data analysis in experiment (SI, B.Sc.)
• Software applications in mechanics (SI, BSc.)
• Noise and Vibration (SI, Eng.)