PEM - Database for the stick-slip risk of material pairings

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  • Datenblatt

Target Markets

  • Vehicles
  • White goods
  • Shoes
  • Electronics
  • Sports equipment
  • Prosthetics
  • Biomechanics
  • Textiles

Benefits

  • Shorter development times
  • Increase in product quality
  • Avoidance of customer complaints
  • Reduction of warranty costs

Technical data of the PEM material database

  • > 10.000 individual measurements
  • Including which are the most common materials on the market.
  • Grains
    Coatings
    Additives
  • Temperature
    Relative velocity
    Relative humidity
  • Risk priority indicator in accordance with VDA 230-206
    Max-g
    Coefficients of friction

Fields of application:

  • Information on the stick-slip risk and friction coefficients of material pairs
  • Investigation of the influence of grainings, additives and coatings

In the case of relative movements, which occur, for example, when driving an automobile, unpleasant interfering noises in the form of squeaking and creaking noises can occur between material pairs.

Approximately half of the problems caused by this noise can be traced back to incompatibilities of material combinations. Many problems can therefore be avoided or eliminated in advance by preventing relative movements or, if this is objectively not possible, by selecting a suitable material.

Based on more than 10,000 individual measurements, Ziegler-Instruments has compiled a material database which contains a large part of the materials and material combinations commonly available on the market.

Each material combination is stored with approximately 30 individual criterias, which refer to different groups, for example the material trade name and supplier. Another one characterises the surface properties in terms of structure, grain and other details. A third refers to external parameters such as normal force, velocity, temperature and humidity.

A simple search function allows to find results of critical material pairs quickly. The combination of preventive noise elimination and CAE-based software solutions offers great benefits.

Conclusion:
The PEM material database provides immediate information on the stick-slip risk and coefficient of friction of critical material pairings. This allows to take preventive eliminations for annoying noises can be taken early on in the development phase, the development times can be shortened and possible guarantee or recall actions can be avoided.