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Environmental Simulation and
Vibration testing – We can create the
environment in the laboratory for you

Our engineers can provide you with extensive experience in the field of environmental simulation, where real
measured external influences such as vibration, shock, cold, heat, moisture, or splashing water can be mapped
on vibrating tables and in climatic chambers.

There is a vast field of work for you between development, quality assurance and the approval certification in all industries, including vibration testing, shock testing, climatic testing, Wöhler curve evaluation, pressure impulse testing, burst pressure testing, leakage testing, corrosion testing and transport simulation. A probit test, stair step process and a test for fuel resistance complement the portfolio.

We evaluate via experimental paths in order to verify the reliability of your product dynamic characteristics such as resonances, spring coefficients, damping variables as well as mass distributions. We will be pleased to monitor your technical equipment permanently on request (including data evaluation such as frequency analysis and estimation of the operating strength).

As an accredited test service provider, we not only provide standard-compliant component examinations but also, as an additional benefit, the flexible accreditation provides us with the opportunity to modify and to develop new test procedures.

Our portfolio

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Simulation and Strength Assessments

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Multiaxial vibration test with/without thermal loading

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For operating load simulation for transport stress, we utilise a shaker test bench within the framework of the operating strength examination for the automotive industry, whose main components are a multi-axle oscillation table (MAST) and a combinable hot gas generator.

This test equipment is particularly suitable for testing components, modules, assemblies and subsystems such as, for example, tanks, attachment and dismantling parts, exhaust systems, roof and rear-mounted carrier systems, front-end modules, cooling systems and much more.

Utilising the multi-axial oscillation table (MAST) makes it possible to generate the loads from mechanical oscillations as regulated, whether for the simulation of the operating loads such as unevenness on roads, steering and braking loads, load interchanging and vertical and roll motions.

Exhaust systems and exhaust gas-carrying components are, for example, subjected to complex load conditions due to their function and location within the vehicle. On the one hand there are strong thermal-mechanical stresses due to the temperature of the exhaust gas. Meanwhile, these components have to withstand mechanical vibration loads arising from the motion of the vehicle and motor vibration impulses. The hot gas generator is capable of generating variable thermal-mechanical loads for components. Combining both systems allows the overlaying of stresses through experimental simulation. Both systems can be operated independently of each other.

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Parameter

  • Table size: Diameter 2.2m
  • Payload: maximum 680kg
  • Acceleration: maximum 200m/s²
  • Frequency range: 0.5..100 Hz
  • Burner power: maximum 700 kW
  • Test bench operation: 24/7 is possible
  • Hot gas mass flow: up to 0.850 kg/s
  • Hot gas temperature: up to 850°C
  • Interfaces:
    • 16 accelerations (can be extended as preferred)
    • 24 additional analogue inputs
    • 8 analogue outputs
    • 16 digital inputs and outputs

Vibration testing

We can test your products, components and assemblies in our modern vibration laboratories as standard compliant for their behaviour and reliability in the event of vibration and shock loads. Our laboratories are equipped with electro-dynamic shakers for 9 KN up to 60 kN forces with sliding table as well as a transportable climatic chamber for simultaneous temperature and humidity loads for the test specimens.

Would you like to have vibration and shock tests under climatic influences? We simulate loading conditions in a wide temperature and humidity range. Development-supporting product validations include additional testing methods such as pressure impulse testing, burst pressure tests, leakage tests e.g. in the case of fuel rails.

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Test spectrum

  • Vibration testing
  • Vibration examinations
  • Oscillation tests
  • Combination tests with oscillation, vibration, shock and climate
  • Pressure impulse tests, burst pressure tests
  • Tightness test
  • Corrosion testing
  • Transport simulation
  • Probit test
  • Wöhler curve evaluation
  • Stair step procedure
  • Sonic fatigue test
  • Testing for fuel resistance

Test parameters

Vibration test

  • Swept sine, noise, higher-level excitation, idling resonance
  • Frequency range 1 up to 3500 Hz
  • Force vector 60 kN
  • Test acceleration up to 140g

Shock test

  • Half-sine, saw-tooth, trapezoidal, Shock Response Spectrum (SRS) among others
  • Peak acceleration up to 200 g
  • Shock duration 1-50 ms

Specimen mass

  • Horizontally excited up to 2000kg
  • Vertically excited up to 1000 kg
  • Oscillation and shock also combined with temperature and humidity load

Climatic test

  • Usable space 1 m³
  • Temperature range -70 up to +180 °C
  • Relative humidity 10-98%
  • Temperature shock -80 °C … +220 °C

Test standards

Selection of national and international standards, testing requirements from certification bodies and manufacturer’s provisions or regulations

DIN EN 60068-2-6FC Tests: Vibration sinusoidal
DIN EN 60068-2-27Ea Tests: Shocks
DIN EN 60068-2-50Z/AFc Tests: Combined Testing – Cold/Vibration
DIN EN 60068-2-51Z/BFc Tests: Combined Testing – Dry Hot/Vibration
DIN EN 60068-2-64Fh Tests: Broadband Noise
DIN EN 60068-2-80Fi Tests: Mixed-Mode Vibration Testing
DIN EN 60068-2-81Ei Tests: Shocks – Synthesis for Shock Response Spectrum (SRS)
MIL-STD-810Test Method Standard for Environmental Engineering Considerations and Laboratory Tests
RTCA/DO-160Environmental Conditions and Test Procedures for Airborne Equipment
DIN EN 60 721Classification of Environmental Conditions
DIN EN 50 125Environmental conditions for operating resources and equipment on railway vehicles
DIN EN 50 155Electronic equipment used on rail vehicles
DIN EN 61 373Operating resources for railway vehicles
ETSI EN 300 019Telecommunication
VW 801 01Electrical and electronic assemblies in motor vehicles
BMW GS 95003Electric/electronic assemblies in motor vehicles
ISO 16750-3Road Vehicles – Mechanical Loads

Pressure Pulse test

We can execute pressure pulse testing, leak tests, burst pressure tests on hydraulic components, pipework, fittings, fixtures, fuel lines, injection systems and rails. This enables the pressure pulse strength to be tested with indoor dynamic tests. Combining pressure pulse tests and vibration tests in accordance with IACS and DNVGL Type Approval also enables hydraulic fittings to be tested for bending with loads for internal pressure.

Certification tests for hydraulic systems are just one part of our testing spectrum as well as comprehensive validation inspections e.g. for fuel rails.

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Test spectrum

  • Pressure impulse testing
  • Hydro pulse tests
  • Combined pressure pulse testing and vibration testing (IACS, DNVGL)
  • Bursting pressure test
  • Leakage tests with various media (oil, water, nitrogen, helium among others)
  • Pull-Out-Test
  • Vacuum testing

Test parameter

Pressure, dynamicDynamic maximum pressure up to 1,400 bar
Typical pulse frequency 1 Hz
Up to 30 Hz sinusoidal
VibrationBending frequency of hydraulic pipes or tubes up to 20Hz
Curve shapesSine, triangle, trapezoidal or standard curves
e.g. according to IACS P2.11.5.5.3, DNVGL among other things
TemperatureAmbient temperature -40°C up to 140°C
Pressure,staticBurst pressure testing up to 4,000 bar

Test Standards (Selection)

IACS Req. 2011International Association of Classification SocietiesRequirements concerning pipes and pressure vessels
P2.11 Type Approval of Mechanical Joints
GLGermanischer LloydClassification Provisions and Construction Provisions for Pipework Fittings
DNVDet Norske VeritasStandards for Certification No. 2.9
Type Approval Program No. 5-792.20
Pipe Couplings
DNVGLDNV GL SECLASS PROGRAMME Type approval
Mechanical joints
DNVGL-CP-0185
BS 4368 Part 4British StandardCompression couplings for tubes
ISO 19879International Organisation for StandardisationTest procedure for metallic pipe fittings utilising fluid technology
ISO 6605International Organisation for StandardisationHydraulic fluid power. Hoses and hose assemblies. Test methods