DYNAMIC FRICTION MEASUREMENT METHOD EVALUATED BY MEANS OF CYLINDERS AND VALVES

Abstract

Functional safety and live time of pneumatic components are considerably influenced by dynamic seals. To optimize the tribological systems, appropriate experimental methods are required. The testing method described uses a dyingout process generated by the unilateral load of a spring- mass - system. During one process of movement, various conditions of systems are passed as well as typical courses and characteristics of frictional force are provided. Suitability and flexibility of this simple, unsteady method is proved taking investigations of cylinders and valves as an example.