Gear Material Selection using Complex Proportional Assessment and Additive Ratio Assessment-based Approaches: A Comparative Study

Abstract

 Abstract—Material selection is one of the most important decisions in optimal design of any manufacturing process and product. Proper material selection plays an elementary role for a productive manufacturing system with superior product and process excellence along with cost optimization. Improper material selection frequently causes enormous cost contribution and drives an organization towards immature product failure. A proficient methodology for material selection is thus required to help the manufacturing organizations for selecting the best material for a particular application. This paper focuses on the applications of two almost unrevealed multi-criteria approaches, namely complex proportional assessment (COPRAS) and additive ratio assessment (ARAS)-based methods for solving a gear material selection problem in a given manufacturing environment. A complete list of all the prospective materials from the best to the worst is obtained, taking into account multi-conflicting material selection attributes. The ranking performance of these two methods is also compared with that of the past researchers. Index Terms—gear material selection, MCDM, COPRAS, ARAS, performance analysis