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

Technical data • Capacity

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

Technical data • Capacity

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

Proof of strength and function of components such as brake components, springs and dampers, rubbermetal-elements, housings, consoles, couplings, axle boxes, stabilisers, bolster and anti-roll bars
Service life tests taking into account typical vibration and oscillation influences
Performance test of wheelset bearings according to EN12082

Services

Development of test bench concepts for the implementation of the required test conditions / flexible test set-ups
Strength verification under the influence of static and fatigue load cases
Vibration tests on high performance shakers
Shock tests

Technical data • Capacity