Stick-slip test bench for the examination of material pairs.
Stick-slip is undesirable. It produces noise that is perceived as nuisance. Besides, stick-slip can increase abrasion and wear.
The SSP-04 was developed specifically for the measurement of stick-slip phenomena. This includes the measurement of friction coefficients under conditions of typical application and measurements in the wider climate range from -40°C to +80°C.
All measurements comply with VDA-230-206 and with test specifications of well-known OEMs such as BMW, Mercedes-Benz, Ford, Volkswagen, GM, Toyota, Fiat, Jaguar Land Rover and many others.
The risk priority index calculated on the basis of the measuring results is an indicator whether a material pair is a potential S&R source or is acceptable. This is helpful for the designer; he can take suitable countermeasures in good time.
Technical data of the SSP-04:
| Speed range | 1 – 150mm/s |
| Contact pressure | 2 – 80N |
| Contact pressure speed and holding time | adjustable |
| Infeed Control | by force and distance |
| Suitable for climates | between-40°C and 80°C |
| Measuring range for sliding and adhesive friction force | 0 – 35N |
Application examples:
- Infeed is force and position controlled, so the elastic/plastic behavior of parts (e.g., seals) can be defined.
- An optional lifetime profile makes simulation of driving distances possible, e.g., 100,000km, to define the abrasion behavior of coatings or surface structures.
- Optionally, tests with motion profiles of power windows or power roofs or with individual excitation profiles can be performed.