The main purpose of this research work is to study the forming limit and fracture behaviour AZ31 magnesium alloy, as well improve formability surface roughness parts formed using warm incremental sheet (ISF) process. For ISF process, Mg alloy sheets were used. Initially, Taguchi orthogonal L27 arrays used design experiments, a framed multi-objective optimization problem was solved grey-fuzzy me...

The rapid development of agricultural modernization in Hubei province has an influence on cultivated land resources variations to a certain degree. This paper used grey relational analysis method,combined with Hubei province cultivated land area decreased data within the year covering 2000 to 2010 and agricultural modernization development index data, then analyzed the influence relationship be...

Friction stir spot welding (FSSW) is a solid state method mainly used to join non-ferrous metals and their alloys. When opposed other processes, FSSW has the benefits of being pollution-free having no filler material. In this study an attempt was made for multi response optimization friction welded EN AW 5005 aluminum alloy using Taguchi Grey relational analysis (GRA). Pin height (h, mm), tool ...

Project selection is considered as an important problem in project management. It is multi-criteria in nature and is based on various quantitative and qualitative factors. The main purpose of this paper is to present a new rank-based method for project selection in outranking relation. According to this approach, decision alternatives were clustered in the concordance matrix and the discordance...

Stainless-steel has become a widely preferred material type in the marine, aerospace, sanitary, industrial equipment, and construction industries due to its superior corrosion resistance, high mechanic properties, strength, formability, thermal electrical conductivity. In this study, multi-objective optimization method based on grey relational analysis was employed optimize fiber laser-cutting ...

Among the renewable sources of energy, solar energy offers a practical solution for the energy problem which is clouding the prospects of mankind. The present paper deals with the experimental investigation of parameters of a solar parabolic trough in winter conditions and to obtain optimum process parameters by Grey Relational Analysis. The experiments were planned using Taguchi’s L9 orthogona...

This investigation proposes a grey-based Taguchi method to solve the multi-response problems. The grey-based Taguchi method is based on the Taguchi’s design of experimental method, and adopts grey relational analysis (GRA) to transfer multiresponse problems into single-response problems. In this investigation, an attempt has been made to optimize the drilling process parameters considering weig...