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    Mobile testing machines

    Mobile testing machines
    Technical properties

    Mobile testing machines

    Mobile testing machines for chains, load handling attachments and slings enable periodic testing directly on site. DYNA-MESS offers optimised machines for this purpose, which are mounted in vans and ensure efficient, time-saving and safe testing.

    We are DYNA-MESS. Test Systems.

    DYNA-MESS Mobile testing machines for chains

    Technical properties

    Load suspension and lifting gear such as

    • Sling chains
    • Chain hanger
    • Sling ropes
    • Synthetic lifting slings
    • Round slings
    • Round sling hanger
    • and more

    must be inspected at intervals of no more than one year in accordance with UVV VBG 9a. The load test, in which the slings are subjected to a test force, is a more extensive method of inspection in addition to the purely visual inspection.

    DYNA-MESS Mobile testing machine for chains

    Frame construction

    • weight-optimised
    • Permanently mounted in the vehicle (for tests inside the vehicle)
    • Optional: extendable to increase the clamping length


    Nominal force

    • 20 t/200 kN, alternatives possible

    Clamping length

    • is adapted to the customer’s vehicle, typically approx. 4 m

    Control system

    • Graphic display of the force/time curve
    • Numerical display of the measured values
    • Optional: Storage on data carrier for transfer to evaluation PC
    • Optional: Interface to the evaluation PC
    • Optional: reading of RFID transponders for unique identification of the load handling attachments

    Optimisation and efficiency

    • Optimised for mobile use compared to stationary testing machines
    • Minimum tare weight thanks to FEM-optimised test frames enable maximum payload for other test equipment and accessories in the service vehicle
    • Efficient working thanks to quick-release tools for different chain dimensions
    • Extremely simple operation via microcontroller-based control with defined test programmes that run automatically at the touch of a button
    • Documentation of the test results
    DYNA-MESS mobile testing machine for chains installed in vehicle

    Always included: state-of-the-art software and electronics

    Software DYNA-TCC
    Electronics DYNA-CLC

    Torsion test rig with axial/radial misalignment

    Torsion test rig
    Description

    Torsion test rig with axial/radial misalignment

    Various components, including vehicle couplings, elastomer couplings, dual-mass flywheels, drive shafts and transmission components, are subjected to torsional loads during operation. These components can be tested on DYNA-MESS torsion and misalignment test rigs.

    We are DYNA-MESS. Test Systems.

    DYNA-MESS tensioning test rig axial and radial tensioning

    Description

    DYNA-MESS tension test rig

    Complex test systems for development can be equipped with several superimposed drives if required by the application of the component to be tested. In this way, systems can be realised with a selectable, constant drive speed to which a vibration load and additional slip between the input and output side is superimposed. Classic torsion test benches or torsion test benches with superimposed axial loading are also possible.

    DYNA-MESS tensioning test rig static and dynamic tensioning

    Technical features of a tensile test rig

    • Dynamic tensioning drive
    • x-y table for axial and radial tensioning (static and dynamic)
    • Hydraulically mounted swivelling motor
    • Torque and angle control
    • Adjustable angle offset
    • Static torque under speed
    • Speed control

    Always included: state-of-the-art software and electronics

    Software DYNA-TCC
    Electronics DYNA-CLC

    Play and stiffness test rig

    Play and stiffness test rig
    Technical properties

    Play and stiffness test rig

    DYNA-MESS test stand for measuring the play and stiffness of seats.

    We are DYNA-MESS. Test Systems.

    DYNA-MESS test stand for measuring the play and stiffness of seats

    Technical properties

    DYNA-MESS test portal for measuring play and stiffness
    • Very rigid portal frame as a welded construction
    • Base plate with T-slots or hole pattern
    • Electrical traverse of the gantry in x, y and z direction
    • Servo-electric or servo-pneumatic drive
    • Rotating and swivelling actuator, gimbal-mounted
    • Additional displacement transducers
    • Special software for calculating play and stiffness values

    Always included: state-of-the-art software and electronics

    Software DYNA-TCC
    Electronics DYNA-CLC

    Torsion test rig

    Torsion testing machines
    Technical properties

    Torsion test rig

    Various components, including vehicle couplings, elastomer couplings, dual-mass flywheels, drive shafts and transmission components, are subjected to torsional loads during operation. These components can be tested on DYNA-MESS torsion test rigs with axial/radial misalignment.

    We are DYNA-MESS. Test Systems.

    DYNA-MESS circumferential torsion testing machine

    Technical properties

    DYNA-MESS torsion testing machine 14 kNm

    Static characteristic curves and dynamic characteristic values

    DYNA-MESS torsion test rigs enable both static load tests up to breakage and dynamic fatigue tests to determine service life. Vibrations can be superimposed on static moments in order to simulate operating conditions. The test benches are also used to determine characteristic values, including the static torsion curve, hysteresis, stiffness at various operating points, dynamic stiffness, loss angle and damping energy.

    DYNA-MESS torsion testing machine

    Axial preloads, torsion test rigs and superposition test rigs

    Complex test systems for development can be equipped with several superimposed drives if required by the application of the component to be tested. For example, systems with selectable, constant drive speed, to which a vibration load and additional slip between the input and output side is superimposed, have been realised. Classic torsion test benches or torsion test benches with superimposed axial loading are also possible.

    Always included: state-of-the-art software and electronics

    Software DYNA-TCC
    Electronics DYNA-CLC

    Seats

    Seats
    Tests
    Matching products

    Seats

    A large number of mechanical tests are carried out on vehicle seats. Standardised DYNA-MESS test rigs and axes are preferably used for endurance tests and to determine play and stiffness.

    We are DYNA-MESS. Test Systems.

    Tests

    Fatigue tests

    Endurance tests on vehicle seats are carried out using classic vibration tests, multi-stage/block tests or cyclic ramp tests. Both the metallic seat structures and fully upholstered seats are analysed. The force is applied via back and buttock dummies in order to reproduce a load that is as close to reality as possible.

    Multi-axes experiments

    Multi-axis tests are easy to realise with the help of the DYNA-MESS test axes. The testing software is configured for several axes and then ensures that the overall test is carried out correctly. In multi-axis tests, the correct sequence of loads or – in the case of simultaneous loading by several axes – the temporal synchronisation of the axes is important.

    DYNA-FaSi

    Tensile and compressive loads with a test axis

    Many test specifications stipulate alternating loads in two directions. Thanks to the servo technology used, these loads can be applied with just one test axis. The axis-integrated force and displacement measurement ensures that the desired loads and positions are approached precisely.

    Seat adjustments

    In addition to testing the seat structures, test axles are used for the continuous actuation of seat adjustments (seat length adjustment, seat height adjustment). These continuous function tests can be carried out in combination with electrical adjusters (backrest adjustment, etc.). The DYNA-MESS test software enables simple control of these motors.

    Test axes, test fields and test portals

    Play and stiffness measurement

    To determine the backrest play and seat rigidity, the seats are subjected to a quasi-static load up to a test force. Additional displacement sensors (displacement sensors, laser displacement measuring systems, etc.) are used to measure the deformation of the seat structure at defined positions.

    Play and stiffness test rig

    DYNA-EVP: Ehra tester

    DYNA-MESS has developed the DYNA-EVP, an Ehra tester for car seats, for operational load impact tests.

    • Portal frame with 3 load units (3 front seats or one rear seat)
    • Vibratory plate for vertical movement, with additional horizontal movement
    • Dynamic Ehra signal
    DYNA-EVP

    DYNA-AFT: Automated Foam Tester

    Foam tests according to ISO 2439, ISO 3385, ISO 3386 – 3 variants possible

    • Standard
    • Standard +
    • Automatic testing

    Technical data

    • Electric drive
    • Light curtain
    • PC and electronics integrated
    • Customised software
    DYNA-AFT

    SUITABLE PRODUCTS

    FAQs on testing car seats at DYNA-MESS

    What tests can be performed on vehicle seats?

    DYNA-MESS offers the following testing machines, among others:

    • DYNA-FaSi (driving simulation test bench)
    • Play and stiffness test benches
    • DYNA-EVP (Ehra tester for operational load testing)
    • DYNA-FTT and DYNA-SST (recliner tester for car seats)
    • DYNA-AFT for foam testing in accordance with ISO 2439, ISO 3385, ISO 3386
    What are fatigue and endurance tests on seats?

    Fatigue and endurance tests include classic vibration tests, multi-stage/block tests, or cyclic ramp tests, which are performed on both seat structures and fully upholstered seats. The load is applied realistically using back and buttock dummies.

    How do multi-axis tests work?

    DYNA-MESS test axes enable programmed testing across multiple axes. Processes and load sequences can be precisely synchronized to apply different forces simultaneously or with a time delay.

    Are tensile and compression tests possible?

    Yes, alternating tensile and compressive loads can already be applied with a single test axis. Servo technology and integrated sensors ensure precise force and displacement control.

    Can adjustments be tested in addition to the seat structure?

    Test axes are available for continuous operation of seat adjustments such as longitudinal and height adjustments. Electric adjusters (e.g., backrest adjustment) can also be tested automatically with the DYNA-MESS test software.

    What special test benches and products are available for seat testing?

    Yes, three-axis test systems allow precise endurance testing of passenger car shift actuators with travel and force control, also under climatic conditions if desired.

    What services does DYNA-MESS offer?

    DYNA-MESS provides comprehensive services:

    • Calibration: Adjustment for precise measurement results
    • Maintenance: Regular care for a long service life
    • Repair: Restoration of operation
    • Modernization: Technological updates to improve performance
    • Accessories: Extensions and upgrades
    • Training: User training for DYNA-MESS testing systems

    Steering wheel

    Steering wheel tests
    Tests
    Matching products

    Steering wheel

    Vibration resistance tests are carried out on steering wheel skeletons as well as on complete steering wheels. In most cases, the steering wheels are fixed to the central hub and loaded on the steering wheel rim. Continuous actuation tests on horns and switches are usually carried out on the complete steering wheel.

    We are DYNA-MESS. Test Systems.

    Tests

    Fatigue strength


    During these tests, a dynamic load is applied to the steering wheel rim. The load direction can be

    • axial or
    • at an angle to the steering wheel plane or
    • tangential

    The test frequencies are 1 to 10 Hz and the loads are in the range < 1 kN. The steering wheels are loaded either until failure due to breakage or up to a target number of load cycles and then examined for visible damage, cracks or permanent deformation.

    DYNA-MESS standard table-top testing machines or the DYNA-BAT can be used for these endurance tests.

    Table top testing machines
    DYNA-BAT

    Multi-axis loads


    Complex loads are realised with multi-axial test equipment. Torsion drives can be combined with linear drives or several linear cylinders can be used. For example, combined loads such as “torsion and simultaneous bending load” can be visualised.
    The DYNA-MESS testing software not only ensures exact compliance with the peak load, but also guarantees an exact phase relationship between the individual loads.

    Test axes, test fields and test portals
    DYNA-BAT

    Permanent deformation


    One criterion in the assessment of steering wheels is the permanent deformation resulting from an applied load. This is determined by measuring the change in position of a measuring point on the steering wheel before and after the load.

    These tests can also be carried out on DYNA-MESS machines. The testing software offers the option of measuring the change in position without dismantling the steering wheel. This means that the load and measurement of the permanent deformation take place in one machine and automated test sequences with determination of the permanent deformation as a function of the load can be carried out.

    Torsion tests


    In addition to tests in which linear drives are used, tests with torsion drives are also carried out on steering wheels.
    The steering wheels are fixed to the rim and loaded by a central torsion drive on the hub. The loads can be applied both quasi-statically and dynamically in continuous oscillation mode.
    The evaluation criteria are breakage, cracks, visible damage or permanent deformation.
    Depending on the task, servo-electric, servo-pneumatic or servo-hydraulic DYNA-MESS torsion testing machines are used.

    Torsion testing machines

    SUITABLE PRODUCTS

    FAQs about steering wheel testing at DYNA-MESS

    What is tested during steering wheel testing?

    Fatigue strength tests are performed on both steering wheel skeletons and complete steering wheels, usually by applying load to the steering wheel rim and fixing it to the central hub.

    What types of tests are offered?

    DYNA-MESS offers fatigue strength, multi-axis load, torsion, and permanent deformation tests, as well as continuous operation tests for horns and switches.

    How are fatigue strength tests performed?

    A dynamic load is applied to the steering wheel rim (axial, oblique, or tangential) with test frequencies of 1 to 10 Hz and forces of less than 1 kN until failure or the target number of load cycles is reached.

    How is permanent deformation measured?

    The change in position of a measuring point on the steering wheel is determined directly in the machine before and after loading. Automated processes enable the measurement of permanent deformation as a function of load.

    What torsion tests are performed?

    Steering wheels are fixed to the rim and loaded at the hub with a torsion drive. The load can be quasi-static or dynamic. Fractures, cracks, visible damage, and permanent deformation are evaluated.

    Which testing machines are used?

    Depending on the task, servo-electric, servo-pneumatic, or servo-hydraulic DYNA-MESS testing machines such as the DYNA-BAT (bi-axial tester), DYNA-HAT, and DYNA-BDT are used for special tests.

    What services does DYNA-MESS offer?

    DYNA-MESS provides comprehensive services:

    • Calibration: Adjustment for precise measurement results
    • Maintenance: Regular care for a long service life
    • Repair: Restoration of operation
    • Modernization: Technological updates to improve performance
    • Accessories: Extensions and upgrades
    • Training: User training for DYNA-MESS testing systems

    Pedal system

    Pedal system
    Tests
    Matching products

    Testing the pedal system and foot lever mechanism

    DYNA-MESS test systems are used for testing pedals and foot controls. In addition to fatigue vibration tests on the pedal, fatigue function tests are primarily carried out on the entire foot lever mechanism, in which the fatigue strength of the pedal and the long-term functional reliability of bearings, master cylinders, springs, etc. are analysed. Modern technologies such as brake-by-wire are tested and further developed on specially developed test benches.

    We are DYNA-MESS. Test Systems.

    Tests

    Pedal operation

    The pedal is operated in a combined displacement/force control mode. After moving to a predefined pedal position, the system switches to force control in order to apply the desired maximum force. The DYNA-MESS testing software allows the user to specify all necessary parameters such as positions, forces and load speeds.

    Counterforce simulation

    In the blocking test, the pedal is mechanically fixed and subjected to vibrations at frequencies of up to 5 Hz. This test is used to analyse the fatigue strength of the pedal.

    Environmental simulation

    The DYNA-MESS electronics also take over the parameterisation and control of heating and climate chambers, which enable mechanical testing under temperature (typically -40°C to 80°C) and humidity.

    Testing in the vehicle

    Servopneumatic test axes can also be used for in-vehicle testing. This means that the entire real system, consisting of the pedal system, connected actuator (brake, clutch, etc.) and the mechanical connection of the pedal system to the chassis, is available for testing.

    Test axes, test fields and test portals

    Testing electric pedals

    The DYNA-BPS testing machine is used for dynamic component testing on electric brake pedals.

    DYNA-BPS

    SUITABLE PRODUCTS

    FAQs about pedal system testing at DYNA-MESS

    What is tested on pedal systems?

    DYNA-MESS testing systems are used for extensive testing of pedals and foot lever mechanisms, including fatigue tests on the pedal and endurance tests on the entire foot lever mechanism.

    How are the pedals actuated during testing

    Actuation is performed using combined displacement/force control: First, a specified pedal position is approached and then the desired maximum force is applied. The user can individually specify all parameters such as positions, forces, and speed.

    What is the locking test and how is it performed?

    In the locking test, the pedal is mechanically locked and subjected to oscillating loads at frequencies of up to 5 Hz. This tests the fatigue strength of the pedal.

    Are environmental conditions taken into account in the tests?

    Yes, mechanical tests can be carried out under variable temperature (-40°C to 80°C) and humidity conditions with the aid of heat and climate chambers..

    Can tests be performed directly in the vehicle?

    Yes, servo-pneumatic test axles allow tests to be performed directly in the vehicle so that the real system (pedal system, actuator, and mechanical connection to the chassis) can be tested.

    Are electric brake pedals also tested?

    The DYNA-BPS test machine is used to perform dynamic component tests on electric brake pedals.

    What services does DYNA-MESS offer?

    DYNA-MESS provides comprehensive services:

    • Calibration: Adjustment for precise measurement results
    • Maintenance: Regular care for a long service life
    • Repair: Restoration of operation
    • Modernization: Technological updates to improve performance
    • Accessories: Extensions and upgrades
    • Training: User training for DYNA-MESS testing systems

    Gear shift simulation

    Gear shift simulation
    Description

    Gear shift simulation

    Three-axis test systems are used to test the service life of car gearshift levers.. By combining displacement and force control, shifting processes can be precisely simulated and repeated thousands of times. The use of a climate chamber rounds off the gearshift simulation under specified real-life conditions.

    We are DYNA-MESS. Test Systems.

    Description

    Gear shift operations

    The gear changes for 6-speed transmissions including reverse gear are performed in any order and can be repeated thousands of times. The individual gear changes are defined exactly by entering force and displacement values and are executed by the precisely controlled axes. Overpressing in the end positions and lateral force on the gear selector lever when engaging the gears are also taken into account.

    Environmental simulation

    The climate chamber is controlled via the software in synchronisation with the cyclical repetitions of the switching processes. The same switching operations can be carried out for a specified number of repetitions at specified temperatures. The climate chamber can be operated in the temperature range from -40°C to +140°C and humidity values of 10-98% at 10-90°C.

    Always included: state-of-the-art software and electronics

    Software DYNA-TCC
    Electronics DYNA-CLC

    FAQs on gear shift simulation at DYNA-MESS

    What is the purpose of gear shift simulation

    The gear shift simulation tests the service life and functionality of passenger car shift actuators using three-axis test systems. Shift operations are precisely simulated and repeated thousands of times.

    How are the shifting operations performed?

    For 6-speed transmissions including reverse gear, any shift sequence can be repeated thousands of times. The exact definition is made using force and travel values; overpressure in end positions and lateral forces on the gear selector lever are also possible.

    Are environmental factors taken into account in the assessment?

    Yes, a climate chamber can be controlled in synchronization with the switching simulation in order to perform switching operations at temperatures ranging from -40°C to +140°C and humidity levels between 10–98%.

    How do multi-axis tests work?

    Combined torsion and linear drives or multiple linear cylinders are used to generate complex loads, such as simultaneous torsion and bending loads. The test software ensures precise adherence to peak load and phase relationship.

    What services does DYNA-MESS offer?

    DYNA-MESS provides comprehensive services:

    • Calibration: Adjustment for precise measurement results
    • Maintenance: Regular care for a long service life
    • Repair: Restoration of operation
    • Modernization: Technological updates to improve performance
    • Accessories: Extensions and upgrades
    • Training: User training for DYNA-MESS testing systems

    Automotive

    Seats
    Steering wheel
    Pedals
    Switching simulation
    Rubber/metal elements
    Battery

    Our expertise in the automotive sector

    Launching new products on the market in the shortest possible time and ensuring quality – the testing machines from DYNA-MESS make it possible. Testing machines for seats, steering wheels, pedal systems and more are customised and individually adapted or newly developed on request.

    Seats

    A large number of mechanical tests are carried out on vehicle seats. Standardised DYNA-MESS test rigs and axes are preferably used for endurance tests and to determine play and stiffness.

    Seat test

    Steering wheel

    Vibration resistance tests are carried out on steering wheel skeletons as well as on complete steering wheels. In most cases, the steering wheels are fixed to the central hub and loaded on the steering wheel rim. Continuous actuation tests on horns and switches are usually carried out on the complete steering wheel.

    Steering wheel test

    Pedals

    DYNA-MESS test systems are used for testing pedals and foot controls. In addition to fatigue vibration tests on the pedal, fatigue function tests are primarily carried out on the entire foot lever mechanism, in which the fatigue strength of the pedal and the long-term functional reliability of bearings, master cylinders, springs, etc. are analysed. Modern technologies such as brake-by-wire are tested and further developed on specially developed test benches.

    Pedal test

    Gear shift simulation

    Three-axis test systems are used to test the service life of car gearshift levers. By combining displacement and force control, shifting processes can be precisely simulated and repeated thousands of times. The use of a climate chamber rounds off the gearshift simulation under specified real-life conditions.

    Gear shift simulation

    Rubber/metal elements

    Elastomer components are tested both statically and dynamically. DYNA-MESS testing machines are used worldwide for both types of testing, both in development laboratories and in production for 100% testing at the end of production lines.

    Testing of rubber/metal elements

    Battery

    Battery testing with DYNA-MESS test systems includes tests such as nail penetration tests and crush tests to ensure the safety and robustness of batteries under extreme conditions. These comprehensive tests help to identify potential hazards and optimise the batteries to meet the highest safety and performance standards.

    Battery testing

    SUITABLE PRODUCTS

    FAQs on automotive testing at DYNA-MESS

    For which automotive components does DYNA-MESS offer testing machines?

    DYNA-MESS develops testing machines for vehicle seats, steering wheels, pedal systems, shift actuators, rubber/metal elements, and batteries. The systems can be configured to customer specifications and cover many areas in the automotive sector.

    Which tests are possible on vehicle seats?

    Vibration resistance tests, endurance tests on horns and switches, and bi-axial load tests on the rim and hub are carried out.

    What are testing machines used for on steering wheels?

    Vibration resistance tests, endurance tests on horns and switches, and bi-axial load tests on the rim and hub are carried out.

    Which tests are offered for pedals and foot lever mechanisms?

    DYNA-MESS tests pedals for fatigue strength and performs endurance tests on complete foot lever mechanisms. Modern systems such as brake-by-wire are also tested on specialized test benches.

    Are there testing solutions for gear shift simulations?

    Yes, three-axis test systems allow precise endurance testing of passenger car shift actuators with travel and force control, also under climatic conditions if desired.

    How are rubber/metal elements tested?

    Static and dynamic tests are possible both in development laboratories and in production for 100% final inspection.

    What battery tests are possible?

    Safety and robustness tests such as nail penetration and crush tests are available to identify potential hazards and optimize safety and performance.

    What services does DYNA-MESS offer?

    DYNA-MESS provides comprehensive services:

    • Calibration: Adjustment for precise measurement results
    • Maintenance: Regular care for a long service life
    • Repair: Restoration of operation
    • Modernization: Technological updates to improve performance
    • Accessories: Extensions and upgrades
    • Training: User training for DYNA-MESS testing systems

    Battery

    Battery
    Technical properties
    Matching products

    Battery

    Battery testing with DYNA-MESS test systems includes tests such as nail penetration tests, crush tests and vibration tests to ensure the safety and robustness of batteries under extreme conditions. These comprehensive tests help to identify potential hazards and optimise the batteries to meet the highest safety and performance standards.

    We are DYNA-MESS. Test Systems.

    Technical properties

    Application-specific test equipment for testing battery cells, battery modules and battery packs in accordance with UN 383, ECE R100 and PV 8450.

    • Stationary or mobile version
    • Servo-electric or servo-hydraulic test cylinders
    • Application-specific nominal forces and cylinder strokes
    • Variable travelling speed
    • Customised security concepts adapted to the place of use
    • Software modules for nail penetration, crushing, …

    SUITABLE PRODUCTS