Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Maciągowski D.

1 2006

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: pull leveling

Sortuj według:

Ogranicz wyniki do:

Redukcja zmienności jako klucz do poprawy efektywności systemu produkcyjnego

Maciągowski D.

Zarządzanie Przedsiębiorstwem

2006

Vol. 9, nr 2

45-56

The aim of this paper was to describe influence of variability on production system and how it can be reduced. In the first part it was shown how basic performance indicators of production system - productivity and lead time - are affected by variability. It was also shown that increasing the level of variability always means either worsening productivity or lengthening lead time. Therefore focus on reduction of variability is an important step in accomplishing business excellence. In the second part one can find classification of three existing sources of variability. The first one - random variability is caused by all random events, which happen on production floor (breakdown, stoppages etc). The second one - so-called controlled variability is in most cases the result of management decision (product diversification, the way of production planning etc.). And the third one - uncertainty is out of control for production system (fluctuation in market demand, problems with getting raw materials etc.). At the end of this part the most important causes of variability were gathered. Finally, it was presented how the causes of variability can be reduced by means of "Lean Manufacturing" - the concept, which was developed based on observation of Toyota Production System and focuses on waste reduction out of production system. In this approach the inventory and overproduction is the worst waste and have to be eliminated. As a result, variability is much more visible and can be reduced by different tools of Lean Manufacturing-pull, leveling, U shape cell, one piece flow, visualization, jidoka, continuous improvement, work standardization, Total Productive Maintenance, rapid problem solving and lean design. AH of them was roughly described and for most of them application example from real production system was enclosed. As a conclusion it was proven that reduction of inventory and not utilized capacity without proper attention on variability reduction is very dangerous with respect to productivity. Therefore introduction of Lean Manufacturing should always mean reduction of variability. For further research leave issues related to variability influence on quality, reduction of controlled variability and applying different management concepts for variability reduction.