TY - JOUR
T1 - Welding process selection for repairing nodular cast iron engine block by integrated fuzzy data envelopment analysis and TOPSIS approaches
AU - Mirhedayatian, Seyed Mostafa
AU - Vahdat, Seyed Ebrahim
AU - Jelodar, Mostafa Jafarian
AU - Saen, Reza Farzipoor
PY - 2013
Y1 - 2013
N2 - The selection of welding process is one of the most significant decision making problems and it requires a wide range of information in accordance with the type of product. Hence, the automation of knowledge through a knowledge-based system will greatly enhance the decision-making process. A combined fuzzy data envelopment analysis (DEA) and TOPSIS is proposed to investigate the relative welding process selection factors and it can compare and evaluate different welding processes. The proposed approach compares each decision making unit (DMU) with the worst and the ideal virtual DMU and it ranks them via the relative closeness index. The proposed approach is used for ranking eleven welding processes which are commonly used for repairing nodular cast iron engine block in four cases and it is shown that the approach is sensitive to changes in dataset.
AB - The selection of welding process is one of the most significant decision making problems and it requires a wide range of information in accordance with the type of product. Hence, the automation of knowledge through a knowledge-based system will greatly enhance the decision-making process. A combined fuzzy data envelopment analysis (DEA) and TOPSIS is proposed to investigate the relative welding process selection factors and it can compare and evaluate different welding processes. The proposed approach compares each decision making unit (DMU) with the worst and the ideal virtual DMU and it ranks them via the relative closeness index. The proposed approach is used for ranking eleven welding processes which are commonly used for repairing nodular cast iron engine block in four cases and it is shown that the approach is sensitive to changes in dataset.
KW - Designer
KW - Fuzzy data envelopment analysis
KW - Supplier
KW - TOPSIS
KW - Welding process selection
UR - http://www.scopus.com/inward/record.url?scp=84864770278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864770278&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2012.07.010
DO - 10.1016/j.matdes.2012.07.010
M3 - Article
AN - SCOPUS:84864770278
SN - 0264-1275
VL - 43
SP - 272
EP - 282
JO - Materials and Design
JF - Materials and Design
ER -