Tribometry & Tribosensorics
Ring friction and wear tribometer - high load
mechanical-dynamical analysis of drive or friction elements according to the principle of ring/ring, in particular with liquid interfacial media and at different temperatures
determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs
high resolution friction torque signal as an indicator for the existence and intensity of stick-slip
analysis of the stick-slip of friction disc systems
drive torque: < 700 Nm; normal load: < 40,000 N; rotational frequency: 0 – 300 rpm; interfacial media flow: < 1 l/min; temperature control range: -30 – +130 °C
disc diameter: < 150 mm, thickness of the disc system: < 30 mm
Contact
LEBERSORGER Thomas
NAGL Daniel
Ring friction and wear test rig - low load
mechanical-dynamical analysis of drive or friction elements according to the principle of ring/ring, in particular with liquid interfacial media and at different temperatures
determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs
friction torque, rotational frequency, temperature
formation of reaction layers and stick-slip at friction materials (brakes, gears)
rotational frequency: < 1000 rpm; normal load: < 4000 N; temperature: RT – 150 °C
disc diameter: < 150 mm
Contact
LEBERSORGER Thomas
Ring friction and wear test rig - high temperature
determination of coefficient of friction and wear of surface layers using ring/ring or pin/disk configuration under dry friction and at different temperatures
determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs at temperature < 1000 °C
friction torque, sliding distance, temperature, wear height
basic research in high temperature slide bearings or ceramic layers
rotational frequency: < 1000 rpm; normal load: < 1500 N; temperature (testing chamber): RT – 1000 °C
disc diameter: < 200 mm, height of tribosystem: up to 40 mm
Contact
LEBERSORGER Thomas
Reciprocating friction and wear tribometer (SRV) with with inclinable and air-conditionable test chamber
standard method for determination of lubrication ability; standards: DIN 51834- 1 to 4, ASTM D5706, ASTM D5707, ASTM D6425, ASTM D7421 & other internal protocols
the counter body oscillates reciprocating with a defined normal force, frequency and stroke length on a base body; e. g., a lubricant to be investigated is distributed on the contact surface of the specimens
coefficient of friction; high resolution friction analysis; wear height; wear track on the specimens; acustic emission, electr. contact resistance
model analysis for comparative determination of friction and wear characteristics of lubricants
normal load: 3 – 2500 N; stroke: 0.1 – 5 mm; frequency: 1 – 511 Hz (dependent on stroke lenght); temperature: RT – 300 °C
ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)
Contact
LEBERSORGER Thomas
Reciprocating friction and wear tribometer (SRV) with rotational test chamber
standard method for determination of lubrication ability; standards: DIN 51834- 1 to 4, ASTM D5706, ASTM D5707, ASTM D6425, ASTM D7421 & other internal protocols
the base body oscillates reciprocating with a defined normal force, frequency and stroke length on a flat counter body; the lubricant to be investigated is distributed on the contact surface of the specimens
coefficient of friction, wear height, wear track on the specimens
model analysis for comparative determination of friction and wear characteristics of lubricants
normal load: 1 – 2000 N; stroke: 0.1 – 4 mm; frequency: 1 – 511 Hz (dependent on stroke lenght); temperature: RT – 290 °C
ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)
Contact
LEBERSORGER Thomas
Reciprocating friction and wear tribometer (SRV) with rotation modul
standard method for determination of lubrication ability; standards: DIN 51834- 1 to 4, ASTM D5706, ASTM D5707, ASTM D6425, DIN D7421 & other internal protocols
the base body oscillates reciprocating with a defined normal force, frequency and stroke length on a flat counter body; the lubricant to be investigated is distributed on the contact surface of the specimens
coefficient of friction (CoF); high resolution CoF signal of an oscillation; wear height; wear track on the specimens
model analysis for comparative determination of friction and wear characteristics of lubricants
oscillation: normal load: 10 – 2000 N; stroke: 0,1 – 4 mm; frequency: 1 – 511 Hz (dependent from stroke); temperature: RT – 290 °C; rotation: normal load: 10 – 2000 N; rotational frequency: 1 – 2000 rpm; radius: 0 – 40 mm; temperature: RT – 180 °C
ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)
Contact
LEBERSORGER Thomas
Universal Mechanical Tester Tribolab
Determination of coefficient of friction and wear of different materials or surface layers; simulation of the tribological behaviour regarding to point, line or area contact (dry or lubricated)
The base body is translational oscillating with a defined frequency and stroke lenght; the normal force is being achieved from above (vertical) with the antibody using a spindle with a force sensor and a flat spring
Coefficient of friction, wear height, wear track on the specimens
Model analysis for comparative determination of friction and wear characteristics
Normal load: 1 – 1000 N; stroke: 0.1 – 25 mm; frequency: 0.1 – 60 Hz; (dependent on stroke length); temperature: RT (heatable with heating cartridge)
Contact
STOIBER Ulrich
Reciprocating tribometer 1
Simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media
the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body
friction force; normal load; oscillation frequency; sliding distance
optimisation of sliding paths, linear guides, etc.
oscillation frequency: 0 – 3 Hz; normal load: 60 – 2000 N; stroke: 10 – 80 mm
test principle: ball/plate, block/plate
Contact
LEBERSORGER Thomas
Reciprocating tribometer 2
simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media
the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body
friction force; normal load; oscillation frequency; sliding distance
optimisation of sliding paths, linear guides, etc.
normal load: 500 – 8000 N; stroke: 50 – 350 mm
test principle: ball/plate, block/plate
Contact
LEBERSORGER Thomas
Reciprocating tribometer 3
simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media
the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body
friction force; normal load; fequency of movement; sliding distance
optimisation of sliding paths, linear guides, etc.
test principle: ball/plate, block/plate
Contact
LEBERSORGER Thomas
Slinding corrosion tribometer
simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in a corrosive liquid
the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body; during the test a corrosive environment for metallic materials is present in the test chamber
Contact
TRAUSMUTH Andreas
Slinding corrosion Tribometer
simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in a corrosive liquid
the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a (in the direction of movement) flat counter body; during the test a corrosive environment for metallic materials is present in the test chamber; the test chamber is configured as a electrochemical cell
test principle: ball/plate, block/plate
Contact
TRAUSMUTH Andreas
Microload tribometer
tribological testing at low forces (mN)
pin-on-disc test rig; linear-oscillating or rotating
friction force at low loads
tribological behaviour at low loads
normal Load: 10 mN – 200 mN; rotational and oscillating movement; sample size: d < 20 cm
test principle: ball/plate, block/plate
Contact
LEBERSORGER Thomas
RODRIGUEZ RIPOLL Manel
Precision bearing test rig 2
simulation of rotating relative motion between two test samples; analysis of the tribological behaviour of material/lubricant combinations in hydrodynamic lubrication condition
a shaft rotates in a (sintered) bearing with a defined specific pressure and frequency
friction torque; sliding path; temperature
Speed-dependent coefficient of friction (Stribeck curve) of sintered bearings
normal load: < 200 N; rotational frequency: < 500 Hz; temperature: RT – 150 °C
bearing inner diameter 3 – 12 mm, block: up to 10 x 10 x 15 mm³
Contact
LEBERSORGER Thomas
Pin-on-Disc tribometer - horizontal loading
friction and wear investigations with ball- or pin-shaped specimens: standard: DIN ISO 7148-A
friction and wear investigations of a disc shaped base body against a pin, ball, or plate shaped counter body; the vertically placed disc rotates; the load is applied horizontally through the adaptable counter body holder
friction force; normal force; sliding distance; wear
friction and wear behaviour in sliding contacts
sliding speed: 0.1 – 15.0 m/s; normal load: 5 – 80 N
disc: d < 150 mm x 10 mm, pin: d = 3 to 8 mm, ball: d = 10 mm
Contact
JAKAB Balazs
Pin-on-Disc tribometer - vertical loading
friction and wear investigations with ball- or pin-shaped specimens; standard: DIN ISO 7148-A
friction and wear investigations of a disc shaped base body against a pin, ball, or plate shaped counter body; the horizontally placed disc rotates; the load is applied vertically through the adaptable counter body holder
friction force; normal force; sliding distance; wear
friction and wear behaviour in sliding contacts
sliding speed: 0.1 – 16.0 m/s; normal load: 5 – 80 N
disc: d < 110 mm x 10 mm, pin: d = 3 to 6 mm, ball: d = 10 mm
Contact
LEBERSORGER Thomas
Brugger lubricant tester
Ssandard method for determination of lubrication ability, Norm: DIN 51347-1 and -2
the rotating ring – on which the lubricant will be applied before the test starts – produce on the cylindrical specimen, with a defined normal force and rotation frequency, an elliptical wear zone
lubricant load-carrying capacity according to Brugger, based on the wear zone on the cylindrical specimen
standard DIN 51347-1 and -2; normal load: 400 N; rotational frequency: 960 rpm
standard DIN 51347-1 and -2
Contact
LEBERSORGER Thomas
Pin-on-Drum Modul
abrasion of polymers with corundum paper as counterbody; temperature of up to 200°C are possible; standard: ISO4649
a flat-shaped base body is pressed against a roll, on which abrasive paper is mounted
mass loss
determination of wear of polymers at room temperature or elevated temperatures
add-on modul to the break disc tribometer; abrasiv: standardized corundum-paper; wear distance: 40 m; normal load: 10 N (standard); up to 50 N; temperature: RT to 200 °C
sample geometry: diameter 16 mm; thickness: min. 3 mm
Contact
LEBERSORGER Thomas
ASTM G65 - dry sand rubber wheel tester - high temperature configuration
modified 3-body abrasion test: high temperature tests up to 1000 °C, steel wheel tests
abrasive medium (heatable up to 900°C) is feed between rotating wheel (rubber/steel) and heated specimen (RT up to 1000 °C) resulting in 3-body abrasion on the specimen
wear resistance against 3-body abrasion
determination of abrasive wear resistance of materials; analyses of influencing factors like: temperature, velocity, wear distance, normal force, abrasive medium
specimen temperature: ambient – 1000 °C; abrasive temperature: ambient – 900°C velocity: 0.6 – 12 m/s; normal force: 45 – 250 N; abrasive particle size: < 500 µm
specimen size: 25×75 mm, thickness: 4-12 mm, requirement on surface quality: fine grinded
Contact
KATSICH Christian
ASTM G65 - dry sand rubber wheel tester - dry/wet
investigation of mineral abrasion according ASTM G65
abrasive medium (quartz sand/slurry) is feed between rotating wheel (rubber/steel) and specimen resulting in 3-body abrasion on the specimen
wear resistance against 3-body abrasion
determination of a standardised abrasive wear-parameter; comparison of abrasive wear resistance of materials
ASTM G65 standard parameters; standard quartz sand particle size: 212 – 300 µm
specimen size: 25×75 mm, thickness: 4-12 mm, requirement on surface quality: fine grinded
Contact
KATSICH Christian
RIC3 - Radio Isotope Concentration methode
continuous wear measurement in the range of nm/h by means of activated components in real and model systems
the components of a tribological system are activated in a cyclotron; the wear particles produced by the tribological process are transported to a detector via a lubricant circuit attached to the tribosystem; the amount of wear is determined from the measured activity throughout the period of operation
wear depth and wear volume during operation
prediction of lifetime, wear resistance of components; wear protection due to lubricant properties
activation of components
Contact
JECH Martin
WOPELKA Thomas
Test rig for investigations of the contact tolerance of organic vapours
investigation of outgassing products of plastics, life-time test of signal relays
measurement of the contact voltage via transient recorder
contact compatibility and reliability of plastics
investigation of application possibilities of plastics for relay housings
4 relays parallel; 1 microsecond per channel
granulate
Contact
GRUNDTNER Reinhard
RAUFER Franz
5D High-Speed Visualizing System – 5DVIZ
(Vibrometer, Infrared-Camera, High-Speed-Camera)
For the characterization of highly dynamic events in tribology the new high-end infrastructure was acquired aided by funding from the province Niederösterreich and by the EU. With this infrastructure yet hidden dynamic phenomena of technical systems will be made visible to further improve systems for the common good. This affects e.g. unwanted oscillations of devices which cause elevated noise levels and lead to increased energy consumption.
The infrastructure consists of the three main components:
3D scanning vibrometer for the high precision measurement of surface oscillations. This device is unique in Austria and the surrounding region and allows for the acquisition of smallest oscillations up to the MHz region. By three sensor heads oscillations in all three spatial dimensions can be measured. The scanning mode enables the measurement of wholes surfaces to acquire local information of the oscillations.
High resolution high-speed camera for the detailed acquisition of movements in the time domain. A high pixel resolution enables the measurement of smallest movements of systems. Further, an extreme time resolution up to 2.45 million frames per second allows the measurement of highly dynamic processes.
High-speed infrared camera for the acquisition of the temperature evolution of surfaces. With a high time-resolution up to 30,000 frames per second, spontaneous increases in temperature, e.g. originated from friction events, can be measured. Again a high pixel resolution allows the visualization of small details of the measured objects.
In combination as 5DViz these components offer a unique possibility to investigate highly dynamic events in the frequency domain, time domain and temperature domain.
Combination of results from 3D vibrometry, IR thermography and high-speed videography
Modal and operating frequency analysis, temperature distribution and temperature curve, kinetic and dynamic behavior at high frequencies and speeds
Holistic characterization of tribological systems
Development of standards for the metrological recording of reference systems
Definition of the limits of measurement technology for use in tribology
Vibrometer: 3D vibration measurement up to the MHz region
IR camera: IR recordings in the range of 3-5µm with speeds up to 29,000 fps
HS Camera: Recording speed up to 2.5 million fps
Optically non-transparent surfaces; sufficient reflection in the IR spectrum (Vibormeter, IR camera) or sufficient light intensity in the visual spectrum for high-speed recordings
AC2T research GmbH is grateful for the infrastructure funding for “5D High-Speed Visualizing” provided by the “NÖ Wirtschafts- und Tourismusfonds” under the grant WST3-F-5030642/023-2021.
Contact
GRUNDTNER Reinhard
WIDDER Florian
ESTER-2 - Electric Switches Test Rig
Investigation on the switching behavior with variation of the contact kinetics and the contact material
Measurement of contact force, contact position (dynamic), contact temperature and contact voltage
Contact welding, material transfer, contact voltage, contact material erosion
Influence of individual kinetics parameters on welding behavior, contact voltage, contact material erosion and material transfer behavior
230 VAC 16 A
up to 300 VDC 50 A
up to 50 V 300 A
Contact force 0,1-96 N
Closing & opening velocities up to 1 m/s
Contact distance up to 50 mm
Bounces up to 10 kHz & 90 µm
contact rivets, diameter 3-10 mm
Contact
RAUFER Franz
Pendulum-Scratcher
Producing micrometer scratches (amongst others to produce short acoustic emissions)
At an oscillating pandulum with a length of 1 m, a tip (e.g. a insert tip) can be mounted at the end, whitch creates, at the low mark of the oszillation, a scratch on the sample
Measurement of the acoustic emissions, unadulterated of reflexions, of modelled tribologic single-events (scratches)
Recording oft the originally acoutic emissions of modelled tribologic events
sheets with thin, upright edge
Contact
GRUNDTNER Reinhard
