20.500.12556/RUL-94922 Časovne izgube pri proizvodnji hidromehanske opreme Time Losses at hydromechanical equipment manufacturing V magistrskem delu je obravnavan problem ugotavljanja učinkovitosti delovnih sredstev v individualni proizvodnji. Opisali smo metode za ugotavljanje časovnih izgub, sisteme za beleženje delovanja delovnih sredstev in potek izračuna skupne učinkovitosti delovnih sredstev. Z izbrano metodo naključnega snemanja (MNS) smo definirali časovne strukture in prepoznali izgube na delovnih sredstvih. Z zbranimi podatki smo skupno učinkovitost delovnih sredstev (OEE). Za primerjavo smo OEE izračunali tudi s podatki o delovanju delovnih sredstev pridobljenih iz operacijskih sistemov za beleženje obratovanja, to sta sistema SAP in MES. Iz primerjave obeh OEE smo ugotovili, da se beleženje zastojev na delovnih sredstvih v sistemih za beleženje delovanja delovnih sredstev ne izvaja dosledno in zato ne dobimo realne slike o dejanskih zastojih. Ugotovili smo tudi veliko odstopanje med normiranimi časi in dejansko porabljeni časi za izvedbo delovnih nalogiv, zato smo izvedli še hi^2 –test, ki je pokazal da so odstopanja časov statistično dokazljiva. V zaključku smo podali predlog za izboljšavo sistema za beleženje zastojev na delovnih sredstvih. In the master thesis we have researched the problem of equipment efficiency in individual production. We have described the methods for recoginsing time losses on working tools, operational systems for recording working tools's functions and described the course of calculating equipment efficiency. With selected multimoment method (MNS) we have defined time structures of working tools and have recognised losses that accoure. With the collected data we calculated overall equipment efficiency (OEE). For comparison we collected function data from operation systems MES and SAP for all observed working tools and calculated the OEE with those data. From calculated OEE comparison we discovered that there is no consistency of recording working tools stoppage in the systems, therefore we can not get the real picture of working tools function. The second problem we noticed was the deviation among real used time on working tool and prescribed theoretical normed time. We have done the hi^2 -test with collected real and theoretical used times, to prove the statistical significant difference. In the conclusion we suggest a new program for recording stoppage on machine tools. metoda naključnega snemanja časovne strukture OEE normativni časi doseganje norme multimoment method time structures OEE normative times normative achivement true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2017-09-11 13:32:41 2017-09-11 13:32:43 2023-11-28 10:23:41 0000-00-00 00:00:00 2017 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 200033 1050.pdf 1050.pdf 1 E74C5DC87D89EE516746414F6BCC3F18 957cd17b4467c4797d619f650ca2ebd5babd80a7c416b330651e23f7445f60cb a286acb8-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/c2d161e1-0bd1-477f-a3c8-db156c025b62 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=103405 1051.pdf 1051.pdf 1 EF86ED9288A546248201DA8F60B533C3 790267503e572a221bc0d15d4a313476b95549adefa3494448518e034638676d a299bb4b-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/0755b2e3-ac86-450f-a470-d96dea1f3180 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=103406 1052.pdf 1052.pdf 1 062B2BF0AAB48ACF8681197FC61C7B2E 61eaed24f656d773bf3e8d6a3571bdd82239ae2319ace444c04f6e82e4ce29ba a2a80db5-a1b3-11eb-a523-00155dcfd717 20.500.12556/rul/9c09cd66-1a26-48b8-ab74-d80710152b27 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=103407 Fakulteta za strojništvo 0 0 0