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|
- 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.