Kinematics of the test contact

When representing the kinematics of test contacts in the model testing environment, we always have your individual requirements in mind. All relevant factors such as the direction of motion, movement patterns of the drive, its mounting position and the geometry of the friction contact can be accounted for when simulating complex tribosystems. By modulating interference frequencies on the drive, we can simulate damage mechanisms.

  • Numerous types of test contact movement in the test setup
  • You determine your requirements for the test contact kinematics
  • Interference frequencies to simulate damage mechanisms

Movement on the x-axis – oscillation

Translational oscillation motion is generated by an electromagnetic linear motor. The standard movement patterns of oscillation on the x-axis is a sinusoidal signal. Options for fine-modeling the movement can simulate many other movement patterns in addition to the standard sinusoidal signal. An extended frequency range is also available for slow oscillation movements (frequencies in the MHZ range). Using sophisticated control technology, non-sinusoidal and aperiodic movement patterns – in addition to periodic sinusoidal movements – can also be generated. > Learn more

Second frequency for simulating disturbance variables

In practical operation, machine components are subject to a multitude of disturbance variables. Vibrations occurring in the overall system may affect the movement of individual components. This can create damage mechanisms that lead to tribological phenomena such as fatigue, wear and pitting. To simulate such interference, the oscillation mode can be used to modulate a second frequency over the fundamental frequency. 

Rotation

The rotation module allows generation of continuous rotary motion as well as a reversing motion on a circle segment. The option of creating a reversing motion contributes significantly to the practical simulation of joints and bearings in which this type of motion is common. Resolving complete rotation into reversing motion makes large strokes available for the relative movement between test bodies. Further differentiation is possible due to options for fine-tuning the movement characteristics. These include, for example, high motion dynamics that develop from constant changes of direction. By defining changing endpoints of the reversing motion, you can always perform tests with different parameterization in a new, unused area of the test specimen.> Learn more

Movement on the y-axis

Movement of the entire test setup on the y-axis allows easy and accurate positioning of the test parts (e.g. radial orientation or pressure generation). The friction point can also be moved along the y-axis during the tests (e.g. screening of surfaces).

Combi Drive

The Combi Drive option enables multi-dimensional movement (x-axis plus y-axis plus rotation) in a test setup by combining the three drive types. > Learn more

Options

  • We also rely on our own developments in drive control. Controllers specially designed for our tribometry provide full access to the drive properties. You can configure the controller precisely to your applications.
  • The three axes can be coordinated and controlled to move completely independently of, or synchronously with each other.
  • For special constructions the movement axes can be arranged as required. A rotation axis can be installed at the position the specific geometry of the test object is checked, for example, wherever the simulated application requires (e.g. a “block-on-ring” setup).> Learn more
  • Complex test setups that include translatory oscillation and rotation können realisiert werden. > Learn more
  • Two friction contacts (sandwich configuration) can be implemented in a test setup.
  • Considerably improved and extended measurement capabilities (e.g. motor behavior) are available.
  • In the overall testing context, this significantly improves the quality of results as regards application relevance and the acquisition of extensive knowledge about the physical quantities of components found in mechanical engineering.
  • In our system platform, the z-axis defines the axis in which the test load is applied.