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    DYNA-EndoWear

    DYNA-EndoWear
    Technical properties

    DYNA-EndoWear:
    Universal wear simulator
    for joint implants

    In close co-operation with universities, users and clinics, DYNA-MESS has developed the purely electrically driven wear simulator DYNA-EndoWear. A special feature of this machine is the ability to test both hip and knee implants in accordance with the DIN EN ISO 14242-1 (hip) and 14243-3 & 14243-1 (knee) standards, as well as shoulder and ankle endoprostheses.

    We are DYNA-MESS. Test Systems.

    Technical properties

    The servo-electric axes are installed in a compact machine that requires only a small footprint. Neither compressed air nor hydraulic oil is required for operation.

    In addition to the three test stations, DYNA-EndoWear has a reference station for load-equivalent conditioning without the influence of wear.

    Another special feature is the synchronised, independent control of the individual test stations using the DYNA-CLC high-performance controller. The proven DYNA-TCC software can be used to quickly and easily parameterise the tests in accordance with the above-mentioned standards.

    Data sheet

    One multi-component transducer measures forces and torques in all six degrees of freedom at each test station. Dynamic loads of Fx=300 N, FZ=3000 N and MZ=10 Nm are possible.

    DYNA-EndoWear is available in three different versions:

    • DYNA EndoWear 3H for tests on hip implants
    • DYNA EndoWear 3K for tests on knee implants
    • DYNA EndoWear 3HK for tests on hip and knee implants

    The implants can also be tested in media (e.g. saline solution) at the individual test stations. Each station is equipped with a leakage sensor and the temperature is set and monitored.

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

    Software DYNA-TCC
    Electronics DYNA-CLC

    DYNA-EndoK

    DYNA-EndoK
    Technical properties

    DYNA-EndoK:
    Testing machine for knee endoprostheses

    DYNA-MESS testing machine for fatigue tests, tensile and compression tests as well as tests according to various standards and requirements for knee joint prostheses.

    We are DYNA-MESS. Test Systems.

    DYNA-EndoK testing machine for tests on knee joint prostheses

    Technical properties

    Tests according to:

    • ASTM F1223: Method for determining the range of motion of total knee arthroplasties
    • ASTM F2722: Method for evaluating the mechanical properties of tibio-femoral joint replacement implants for knee prostheses with mobile bearings under torsional loading
    • ASTM F2723: Method for testing the risk of decoupling of knee prostheses with mobile bearings under cyclic anterior-posterior shear loading
    • ASTM F2724: Method for determining the dislocation resistance of knee prostheses with movable discs
    • ASTM F2777: Test method for the determination of mechanical properties and deformation of mobile intermediate discs

    Possible versions:

    • DYNA-EndoK AP: anterior-posterior shear stress
    • DYNA-EndoK R: Rotation
    • DYNA-EndoK APR: anterior-posterior shear stress and rotation

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

    Software DYNA-TCC
    Electronics DYNA-CLC

    DYNA-BCT

    DYNA-BCT
    Technical properties

    DYNA-BCT: Bike Components Test

    Test stand for bicycle components with two actuators that can be operated together (cradle test) or solo (fork test or seat post test).

    We are DYNA-MESS. Test Systems.

    Technical properties

    Cradle kick test

    • 2 vertical actuators
    • Connection to pedal cranks
    • Load with 180° phase shift (opposite direction)
    • Seat post free
    • Rigid front fork
    • Rear fork oscillating

    Fork test

    • Actuator horizontal
    • Connection to guided front fork
    • Seat post free
    • Rigid rear fork

    Seat post test

    • Actuator vertical
    • Connection to seat post
    • Front fork guided
    • Rigid rear fork

    Tests according to standard

    • ISO 4210: “Bicycles – Safety requirements for bicycles”
    • DIN EN 15194: “Bicycles – Electric power assisted cycles – EPAC” – City/trekking bikes
    • DIN EN 17404: “Bicycles – Electric power assisted cycles – EPAC” – Mountain bikes
    • DIN 79010 “Bicycles – Transport and cargo bicycles – Requirements and test methods for single and multi-track bicycles”

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

    Software DYNA-TCC
    Electronics DYNA-CLC

    DYNA-MBS

    DYNA-MBS
    Technical properties

    DYNA-MBS: Medical Bone Screw

    DYNA-MESS has developed a special servo-electric testing machine for testing metallic bone screws in accordance with ASTM F543.

    We are DYNA-MESS. Test Systems.

    Technical properties

    Tests according to:

    • ASTM F543: Torsion test
      • Load in moments/angle control with defined rate of rise
      • Determination of yield strength, max. torsional moment, fracture angle
      • Parameterizable fracture detection
    • ASTM F543: Twist-in/twist-out test
      • Turning in and out in angle control with defined speed under axial load
      • Determination of the maximum turning and unscrewing torques
    • ASTM F543: Pull-out test
      • Insertion in angle control with defined speed
      • Axial extraction in path control with defined speed
      • Parameterizable break detection
    • ASTM F543: Self-tapping bone screws
      • Turning in angle control under increasing axial load
      • Determination of the axial force at which the self-tapping effect sets in
    Data sheet

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

    Software DYNA-TCC
    Electronics DYNA-CLC

    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

    Tension test stands

    Tension test stands
    Description

    Tension test stands

    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 testing machines

    Torsion testing machines
    Technical properties

    Torsion testing machines

    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.

    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

    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