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Abstract
This study compares screw joints made of different materials, including screws of different diameters. For that purpose, 8, 10, 12, 14, 16 mm diameter steel screws and various parts made of aluminum (Al), steel (Stl), bronze (Brz), cast iron (CI), copper (Cu) and brass (Br) are considered. Multiple criteria decision making (MCDM) methods such as evaluation based on distance from average solution (EDAS), simple additive weighting (SAW), technique for order of preference by similarity to ideal solution (TOPSIS) and complex proportional assessment (COPRAS) are utilized to assess reliability of screw joints also considering cost issues. The entropy, criterion impact loss (CILOS) and integrated determination of objective criteria weights (IDOCRIW) methods are utilized to assess weights of decision criteria and find the best design alternative. Numerical results confirm the validity of the proposed approach.
Highlights
Screw joints are widely used [1,2,3,4] in cars, trucks, marine engines, compressors and generators, railway track construction, aviation, industrial fans, refrigeration equipment, machine tools, presses, instrumentation, conveyors, all types of mining machines, etc. [5,6,7,8,9,10]
Classical Multiple criteria decision making (MCDM) methods such as evaluation based on distance from average solution (EDAS), simple additive weighting (SAW), TOPSIS and complex proportional assessment (COPRAS) will be used for average solution), SAW, TOPSIS and COPRAS will be used for evaluating evaluating performance of screw joints with respect to technical and economic parameters
Some multiple criteria methods were used for evaluating the combinations of technical and economic parameters of screw joints: EDAS [63], SAW [64], TOPSIS [64] and COPRAS [65]
Summary
Screw joints are widely used [1,2,3,4] in cars, trucks, marine engines, compressors and generators, railway track construction, aviation, industrial fans, refrigeration equipment, machine tools, presses, instrumentation, conveyors, all types of mining machines, etc. [5,6,7,8,9,10]. Theoretical analyses and experimental tests serve to assess reliability of screw joints, clarifying. Theoretical analyses and experimental tests serve to assess reliability of screw joints, clarifying relationships between the cost of the junction and the technical parameters of the joint. MCDM methods helped to select materials for a designing cold-formed steel structures [55]. Classical MCDM methods such as EDAS (evaluation based on distance from average solution), SAW (simple additive weighting), TOPSIS and COPRAS will be used for average solution), SAW (simple additive weighting), TOPSIS and COPRAS will be used for evaluating evaluating performance of screw joints with respect to technical and economic parameters.
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