INDEX-BASED METRICS FOR THE EVALUATION OF EFFECTS OF CUSTOM PARTS ON THE STANDARDIZATION OF MECHANICAL SYSTEMS
DS 80-7 Proceedings of the 20th International Conference on Engineering Design (ICED 15) Vol 7: Product Modularisation, Product Architecture, systems Engineering,Product Service Systems, Milan, Italy, 27-30.07.15
Editor: Christian Weber, Stephan Husung, Gaetano Cascini, Marco CantaMESsa, Dorian Marjanovic, Frederico Rotini
Author: Sinigalias, Pavlos Christoforos; Dentsoras, Argyris
Institution: University of Patras, Greece
Section: Product Modularisation, Product Architecture, Systems Engineering, Product Service Systems
The number and the attributes of custom parts affect significantly the standardization level of mechanical systems and determine their functional characteristics and their value. In the present study, a part classification scheme and a calculation procedure are introduced that enable systematic adaptation and standardization of custom parts during in-enterprise design and manufacturing processes. The level of standardization of the mechanical system under consideration is evaluated via metrics represented by a composite standardization index derived from the combination of two (2) partial indices, namely an index that represents the absolute attribute-based standardization of each part of the system and a second index that represents the degree of commonality for different parts and/or assemblies for the same system. The proposed approach leads to a more reliable evaluation of standardization levels by taking into account all in- and out-of-enterprise available standard resources and provides a framework that promotes design-for standardization processes. Additionally, it contributes towards more efficient and functional products and decreases design and manufacturing costs.