Title: Application of modified MULTI-MOORA for CNC machine tool evaluation in IVGTFNS environment: an empirical study

Authors: Anoop Kumar Sahu; Nitin Kumar Sahu; Atul Kumar Sahu

Addresses: Department of Mechanical Engineering, National Institute of Technology, Rourkela-769008, India ' Department of Industrial and Production Engineering, Guru Ghasidas Central University, Bilaspur – 45009, India ' Department of Industrial and Production Engineering, Guru Ghasidas Central University, Bilaspur – 45009, India

Abstract: In this reporting, an aforesaid CNC machine tool evaluation appraisement module (index) has been conceptualised from the resource of existing literature to evaluation and ranking order of preferred candidate CNC machine tool. In this reporting, generalised interval-valued trapezoidal fuzzy numbers ordered weighted geometric average (GITFNOWGA) operator has been fruitfully and effectively applied for deliver important weights against measures based on set the expert panel subjective preference assessment (rating) in ascending order and then aggregate appropriate rating with following generalised interval-valued trapezoidal fuzzy numbers rule. Finally, multi objective optimisation by ratio analysis (MULTI-MOORA) based on different parts of MULTI-MOORA, namely: ratio system, reference point, and full multification form has been explored coupled with aggregated interval valued trapezoidal fuzzy number set in perceptive to evaluating and benchmarking the CNC machine tool from preferred options/alternatives. Finally, a case study is shown to highlight the proposed procedure.

Keywords: computer numerical control; CNC machining; machine tool evaluation; generalised trapezoidal intervals; fuzzy sets; multiobjective optimisation; ratio analysis; MULTI-MOORA; generalised intervals; trapezoidal fuzzy numbers; weighted geometric average; matrix.

DOI: 10.1504/IJCAET.2016.077603

International Journal of Computer Aided Engineering and Technology, 2016 Vol.8 No.3, pp.234 - 259

Received: 09 Sep 2013
Accepted: 19 Dec 2013
Published online: 07 Jul 2016 *

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