SERVICES OF THE DEPARTMENT within the laboratories
The department offers its well-equipped laboratories and their instrumentation as part of the provision of contract research and complementary activities to customers from the application sphere and the private sector, as well as for the science and research sector. The laboratories offer the services and instrumentation listed below. If you are interested in the services offered or the use of the instrumentation, please do not hesitate to contact us. We will arrange an appointment and agree on a tailor-made solution for you.
Power measurement of power units up to 250 kW and 10,000 rpm (passenger cars)
Power measurement of power units up to 485 kW and 7500 rpm (trucks)
Measurement of performance parameters of passenger cars up to 100 kW and 4x2 single axle drive
Measurement of the operating parameters of a power unit (engine including gearbox) up to 136 kW with 4x4 drive
Fully automatic life test management 24/7 operation
Measurements according to applicable standards
Measurement of CO2, NOx, CO, and THC concentrations
Measurement of particles
Measurement of smokiness
Measurements according to ECE and other applicable standards
Measurement of static and dynamic tests, e.g. NRTC, WHTC
Infrared spectroscopy and Fourier transform (FT-IR) measurements
Measurement of pressure, temperature, flow and fuel consumption
Flow measurement of Carter gases
Measurements on stationary and portable equipment
Liquid fuels: gasoline, diesel, hydrogenated vegetable oil
Gaseous fuels: Hydrogen, CNG, LPG
AUTOCAD, INVENTOR, CATIA, CREO, RICARDO, GT-SUITE, and more
Turning
Milling
Welding of low-alloy stainless steels and aluminium (MIG/MAG, TIG)
High and low-pressure indication
Visualization of operating conditions in intake, cylinder and exhaust
Temperature and pressure calibration
Contact persons
Measurement of total vibration values
Frequency analysis (FFT, band analysis)
Cross-spectral analysis
Measurement of starting and running characteristics
Multispectral analysis
Diagnostics of rolling and sliding bearings
Measurement and analysis of vibration frequency spectra of machines and equipment according to valid ISO ČSN standards
Measurement of noise transmission in buildings
Measuring the insulating properties of materials
Acoustic absorption measurements - performed in an impedance tube and alpha cabin
Frequency transfer functions (acceleration)
Amplitude and phase characteristics
Comprehensive transfer function
Nyquist diagram
Natural frequencies, damping, natural oscillation shapes
Computer animation
Operational balancing of rigid rotors in one and two planes
Animation of machine vibrations under the action of periodic operating forces
Periodic measurements and evaluation of vibrations of machines and equipment
Consulting in the implementation of predictive maintenance systems
Measurement of total levels
Frequency analysis (FFT, band analysis)
Cross spectrum analysis
Multispectral analysis
Measurement according to valid ČSN or other methodologies
Sound intensity measurement with a special probe
Calibration of the measuring chain
Using sound intensity to describe the acoustic properties of noise sources and the acoustic environment
Acoustic performance determined from sound pressure measurements (link to applicable CSN)
Acoustic performance determined from sound intensity measurements (link to applicable CSN)
Using sound intensity measurements to determine steady-state intensity curves on defined measurement surfaces
Determination of partial acoustic performances
Determination of partial acoustic performances
Energy balance
Identification of the source of noise and vibration of automotive transmissions
Use of sound intensity measurement
Mapping sound fields
Determination of sound power etc.
To identify sources and propagation paths of noise from machinery and plant
Determination of articulation index and RASTI index for describing speech intelligibility in buildings and closed spaces
Contact persons
Courses and training
Thanks to the workplace, it is possible to organise lifelong learning training for interested practitioners on vibration and noise measurement, vibration diagnostics, metrology of vibration and noise measurement, etc.
The department provides training for candidates for the Technical Diagnostician-Vibrodiagnostic Certificate for Levels I and II. For this purpose, the workplace is authorised by the Association of Technical Diagnosticians of the Czech Republic.
The training and pilot workplace is a pilot workplace of the Association of Technical Diagnosticians of the Czech Republic for conducting examinations of candidates for the certificate "Technical diagnostician-vibrodiagnostic" for level I and II. After successfully passing the examination, the candidate is certified by the Accredited Certification Point at the House of Technology Ostrava.
Preparatory course for certification
to the Technical diagnostic function.
TRAINING WORKPLACE
The training and pilot workplace was established in 2002 based on industry requirements as a joint project of the Laboratory of Technical Diagnostics of the Department of Vehicles and Engines of the Faculty of Engineering of the Technical University of Liberec and an industrial partner.
The training and pilot workplace was established to support the teaching of TU Liberec students in subjects related to the vibration and noise of machines, experimental methods and the determination of sound insulation properties of materials. Thanks to the workplace, it is possible to conduct training and examinations for candidates for the certificate "Technical diagnostician-vibration diagnostician" and continuing and advanced training and seminars for existing certificate holders. The department assists students in solving bachelor's, master's and doctoral theses in vibration and machine noise.
The training and pilot workplace belongs to the Technical Diagnostics Laboratory and has two main tasks:
Preparing candidates for certification Prepares applicants for certification for the position of Vibration Diagnostic Specialist in cooperation with the Association of Technical Diagnosticians Czech Republic and the Accredited Certification Center of the Ostrava House of Technology.
COURSES FOR PRACTICE CUSTOMERS We offer and carry out courses for people interested in the measurement and analysis of noise and vibration of machines, maintenance of machines, sound absorption and statistical methods of processing measured values.
Contact persons
Prof.Dr.Ing. Pavel Němeček
Instructor of the Technical diagnostician-vibrodiagnostic course (Level IV)
pavel.nemecek@tul.cz
Doc.Dr.Ing.Elias Tomeh
Instructor of the Technical diagnostician-vibrodiagnostic course (Level IV)
elias.tomeh@tul.cz
