A note on the similarity coefficient method and the problem of improper machine assignment in group technology applications

1989 ◽  
Vol 27 (7) ◽  
pp. 1161-1165 ◽  
Author(s):  
HAMID SEIFODDINI
Keyword(s):  
Group Technology ◽  
Similarity Coefficient ◽  
Machine Assignment ◽  
Technology Applications ◽  
Coefficient Method

Preventive maintenance planning considering machines’ reliability using group technology

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Farouq Alhourani ◽  
Jean Essila ◽  
Bernie Farkas
Keyword(s):  
Inventory Management ◽  
Virtual Machine ◽  
Preventive Maintenance ◽  
Clustering Algorithm ◽  
Group Technology ◽  
Heuristic Method ◽  
Similarity Coefficient ◽  
Reliability Factor ◽  
Content Type ◽  
Coefficient Method

PurposeThe purpose of this paper is to develop an efficient and effective preventive maintenance (PM) plan that considers machines’ maintenance needs in addition to their reliability factor.Design/methodology/approachSimilarity coefficient method in group technology (GT) philosophy is used. Machines’ reliability factor is considered to develop virtual machine cells based on their need for maintenance according to the type of failures they encounter.FindingsUsing similarity coefficient method in GT philosophy for PM planning results in grouping machines based on their common failures and maintenance needs. Using machines' reliability factor makes the plan more efficient since machines will be maintained at the same time intervals and when their maintenance is due. This helps to schedule a standard and efficient maintenance process where maintenance material, tools and labor are scheduled accordingly.Practical implicationsThe proposed procedure will assist maintenance managers in developing an efficient and effective PM plans. These maintenance plans provide better inventory management for the maintenance materials and tools needed using the developed virtual machine cells.Originality/valueThis paper presents a new procedure to implement PM using the similarity coefficient method in GT. A new similarity coefficient equation that considers machines reliability is developed. Also a clustering algorithm that calculates the similarity between machine groups and form virtual machine cells is developed. A numerical example adopted from the literature is solved to demonstrate the proposed heuristic method.

Application of the Similarity Coefficient Method in Group Technology

1986 ◽  
Vol 18 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Hamid Seifoddini ◽  
Philip M. Wolfe
Keyword(s):  
Group Technology ◽  
Similarity Coefficient ◽  
Coefficient Method

Multiple routeings and capacity considerations in group technology applications

1990 ◽  
Vol 28 (12) ◽  
pp. 1243-1257 ◽  
Author(s):  
RAKESH NAGI ◽  
GEORGE HARHALAKIS ◽  
JEAN-MARIE PROTH
Keyword(s):  
Group Technology ◽  
Technology Applications
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