Improving K2S Machine Design According to Dynamic Fault Tree Analysis

Abstract

The K2S is machine for sorting and packing potatoes. Exploitation of this machinery so far point to some weakness of it. The K2S machine consists of one belt conveyer, which is used to transport potatoes to oscillating transporter, and two oscillation transporters, which is used for sorting potatoes. This paper presents using of dynamic fault tree method in order to make revision proposal of K2S. Revision of K2S should provide incision of the capacity, removing the weaknesses, and prolonging of the machine life cycle. The dynamic fault tree method is chosen among other methods because of its ability to put events in time order. This paper also shows old design, dynamic fault tree of the oscillation system and proposal of the machine revision. Paper concludes with the discussion of the achieved results. At the end of the paper other possible directions of improving machine design are given.

Mašina K2S je mašina koja služi za klasiranje i pakovanje krompira. Dosadašnja eksploatacija ove mašine ukazala je na neke njene nedostatke. Mašina K2S se sastoji od jednog trakastog transportera koji služi za dodavanje i dva oscilatorna transportera koja služe za klasiranje krompira. U ovom radu je korišćenjem dinamičke analize stabla otkaza napravljen predlog revizije mašine u cilju povećanja njenih kapaciteta, otkalanjanja nedostataka i produžavanja radnog veka. Dinamička analiza stabla otkaza je izabrana pored ostalih metoda pouzdanosti zbog njene mogućnosti za uračunavanje redosleda događaja otkaza. U radu su dati prikazi stare mašine, dinamička analiza stabla otkaza sistema za pobudu oscilacija kao i predlog revizije mašine. Na kraju rada izvršena je diskusija postignutih rezultata i dati su pravci mogućeg daljeg unapređivanja ove mašine.