Design and control of a pneumatic system for testing dynamic strength of materials

Dinamička izdržljivost materijala vrlo je važno mehaničko svojstvo materijala koji se koristi u proračunima proizvoda i poluproizvoda. Budući da nije moguće teorijski utvrditi njegove vrijednosti, provode se eksperimentalna ispitivanja na umaralicama. Umaralice su uređaji koji zadani ispitni uzorak opterećuju prema referentnim signalima, ciklički i dugotrajno. Pneumatski sustav za ispitivanje dinamičke izdržljivosti materijala opisan je simulacijskim modelom, zatim je izvršeno projektiranje konstrukcije, pneumatskog i električnog dijela sustava. Izrađeni su 3D modeli svake faze projektiranja, te kao zadnja faza konstruiran je eksperimentalni postav uređaja.Dynamic durability of a material is a very important mechanical property of a material used in the product and semi-finished product calculations. Since it is not possible to determine its values theoretically, experimental tests are performed on fatigue bars. Fatigue devices are devices that load a given test sample according to reference signals, cyclically and for a long time. The pneumatic system for testing the dynamic durability of materials was described by a simulation model, then the design of the structure, pneumatic and electrical part of the system was performed. 3D models of each design phase were made, and as the last phase, an experimental setup of the device was constructed