FAILURE MODES AND EFFECTS ANALYSIS USING FUZZY TOPSIS IN KNITTING PROCESS

Year 2018, Volume: 28 Issue: 1, 21 - 26, 31.03.2018

Esra Kurt Tekez

Abstract

It is significant to identify and eliminate or
minimize faults in order to provide customer satisfaction. FailureMode and Effects
Analysis (FMEA) is recognized as an operative tool for the quality improvement.
This study carried out FMEA in knitting process using fuzzy Technique for Order
Preference by Similarity to Ideal Solution (TOPSIS). The fuzzy approach was
integrated into the TOPSIS because of its ability to deal with the imprecision
and vagueness in real world problems. In this manner, classifying failures into
priority classes by experts using linguistic variables allows managers to be
focused on the most critical ones with more robust priority ranking. According to the obtained results
in this study, it was determined roller shooting mistake, oil stain,
measurement inequality, touching error, number of hole,
pattern error and yarn breakage are the most critical faults.
These failure modes are usually caused by the fact that the adjustments of
the knitting machine are not set properly. In order to troubleshoot the see errors; it is
significant to increase the number and quality of trainings in the factory,
ensure their continuity and carry out regular machine maintenance.

Keywords

FMEA, failure, fuzzy, TOPSIS, fuzzy TOPSIS, knitting

ÖRME SÜRECİNDE BULANIK TOPSIS KULLANARAK HATA TÜRÜ VE ETKİLERİ ANALİZİ

Abstract

Müşteri
memnuniyetini sağlamak için hataları tespit etmek, ortadan kaldırmak veya en
aza indirmek önemlidir. Hata türü ve etkileri analizi (HTEA), kalite
iyileştirme için etkin bir araç olarak kabul edilmektedir. Bu çalışmada; FMEA,
örme sürecinde bulanık TOPSIS kullanılarak gerçekleştirilmiştir. Bulanık
mantığın gerçek dünya problemlerindeki kesin olmayan enformasyonla ve
belirsizlikle başa çıkma becerisi nedeniyle, bulanık yaklaşımı TOPSIS tekniğine
entegre edilerek kullanılmıştır. Bu şekilde, hataların uzmanlar tarafından dilsel
değişkenler kullanılarak önceliklendirilmesi, yöneticilerin daha güçlü öncelik
sıralamasına sahip en kritik olanlara odaklanmalarına olanak tanır.Bu çalışmada
elde edilen sonuçlara göre, merdane çekim hatası, yağ lekesi, ölçü eşitsizliği,
tuşe hatası, kaçık patlak, desen hatası ve iplik kopması kritik hatalar olarak
belirlenmiştir. Bu hata türleri genellikle örgü makinesinin ayarlarının doğru
yapılmamasından kaynaklanmaktadır. Bu hataları gidermek için; fabrikadaki eğitimlerin
sayısının ve kalitesinin arttırılması, sürekliliğinin sağlanması ve düzenli
makine bakımlarının yapılması önemlidir

Keywords

FMEA, hata, bulanık, TOPSIS, bulanık TOPSIS, örme

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