This research aims to illustrate and express the impact of analytical techniques such as TOPSIS- FTOPSIS-based Taguchi models on obtaining optimum design fiber-reinforced concrete (FRC).Three levels silica fume content, fly ash water-to-cementitious (W/C) ratio, superplasticizer content were examined in present work. However, steel fiber (1%) maximum aggregate size 14 mm kept constant for all m...

Flexure hinge is a critical element in positioner of nanoindentation tester. To effectively work, suitable flexure should simultaneously meet multiple objectives, including rotation axis shift, safety factor, and angular deflection. The main aim this article was to illustrate hybrid method the Taguchi method, fuzzy logic, response surface Moth-flame optimization algorithm solve design order enh...

In this paper, a hub covering location problem is considered. Hubs, which are the most congested part of a network, are modeled as M/M/C queuing system and located in placeswhere the entrance flows are more than a predetermined value.A fuzzy constraint is considered in order to limit the transportation time between all origin-destination pairs in the network.On modeling, a nonlinear mathematica...

This paper presents the use of the Taguchi-regression method in developing the optimal plasma transferred arc welding (PTAW) process for obtaining high hardfacing quality characteristics. An “optimal” process means that the best performance characteristic would be produced while the least number of process parameters are involved. In the experimental tests, the surface hardening process is cond...

In the 3eld of fuzzy modelling, the exclusive consideration of the modelling error leads to problems concerning the handling of high-dimensional applications and the interpretability of the resulting rule base. To solve those problems, a statistically motivated fuzzy rule test is proposed. It decides if a fuzzy IF=THEN statement is a relevant rule or not. In this way, the problem of 3nding a go...

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 management of uncertainty and imprecision is becoming more and more important in knowledge-based systems. Fuzzy logic provides a systematic basis for representing and inferring with this kind of knowledge. This paper describes an approach for fuzzy inference based on an uncertainty forward propagation method and a change in the granularity of the elements involved. The proposed model is abl...