Fatigue strength
Static and dynamic tests on car bodies, bogies, parts & components
Testing and qualification using common standards such as DIN EN 12663 • DIN EN 13749 • VDV 152 • EN 12082 • UIC regulations for fatigue strength verification of wagon bodies, bogies as well as parts and components.
Fatigue strength car bodies
Fields of application
- Tests of head, middle, double-decker cars, tram modules or locomotive mainframes
- Investigation of car body structures against the background of new manufacturing technologies and lightweight design
- Validation of designs in vehicle development
Services
- Static test of car bodies according to DIN EN 12663, alternatively also according to other regional standards
- Implementation of static and dynamic tests with standardised load specifications or customer-specific requirements
- Creation of load assumptions and load spectra
- Online display of bending lines with predictions for direct comparison with the FE model and customer presentation
- Optical absolute displacement measurement for pre-bent car body structures
- Measurement of strains and deformations
- Testing under consideration of environmental conditions
- Modal analysis
Car body test benches: Technical data
- 2 car body test benches in parallel operation
- Each with up to 30 hydraulic cylinders
- Each with up to 500 measuring channels if required
- Longitudinal compression forces up to 5,000 kN to cover US standards
- Car bodies and/or coupled tram modules with a length of up to 32 m
Fatigue strength bogies
Fields of application
- Approval testing of all types of bogies (EMU, DMU, locomotives, trams, freight and passenger coaches, special vehicles) according to DIN EN 13749, VDV152, UIC regulations, and other standards
- Tests according to customer requirements in order to safeguard the function and strength of projects and new types of bogie constructions already in the development phase
- Gaining knowledge for production optimisation and the choice of production methods
Services
- Static and dynamic tests with individual load components
- Test of two- and multi-axle frames
- Permanent damage monitoring
- Optical measurement of the geometrical dimensions of the bogie frame before, during and after the test in coordination with the customer
- Measurement of strains and deformations
- Non-destructive testing, failure analysis, test programme development and on-track measurements re offered as additional services
Bogie frame test benches: Technical data
- Two and multi-axis frames with calculated control channels
- Bogie frame with passive and active tilting technology
- Simulation of internal pressure
- Static and fatigue tests on 12 bogie frame test benches in parallel operation
- Each test bench is equipped with 30 hydraulic cylinders
Fatigue strength parts & components
Fields of application
- Performance tests on wheelset bearings according to DIN EN 12082
- Proof and function tests of components such as brake
components, springs and dampers, rubber-metal-elements, axle box housings, supports, consoles, couplers, wheel-swingarms, anti-roll bars, bolsters and roof and floor panels - Static strength tests on multi-material leight weight
structures such as front masks and floor sections - Service life tests taking into account typical vibration and oscillation influences
Services
- Development of test bench concepts for applying of the required test conditions/flexible test set-ups
- Strength asessment under consideration of static and fatigue loads
- Permanent damage monitoring
- Non-destructive testing
- Vibration and shock tests on high performance shakers
- Tests under high and low temperatures
Technical data • Capacity
- A total of 16 test benches for individual tests in parallel operation
- Each test bench is equipped with up to 10 control and 50 measuring channels
- 4 test benches for performance tests on wheelset bearings according to DIN EN 12082
- Test bench for water tightness test on wheelset bearings according to DIN EN 12082
- Use of state-of-the-art measurement and control technology as well as iteration software for increasing the test frequencies
- Service load simulation
- Stand alone clamping fields
