Title: A robust-tolerance design model for destructive quality characteristics: a case study in cement industry

Authors: Mohammad Amin Javadi; Rassoul Noorossana; Amir Homayoun Sarfaraz

Addresses: Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran, Iran ' Industrial Engineering Department, Iran University of Science and Technology, Tehran, Iran ' Industrial Engineering Department, Islamic Azad University, South Tehran Branch, Tehran, Iran

Abstract: Although remarkable considerations has been devoted to tolerance design (TD) and robust design (RD) by researchers recently and many methodologies have been proposed for the TD and RD optimisation, less attention has been focused on the integration of tolerance design and robust design. In this research, we aim to develop a sequential robust-tolerance design method through best factor settings when several related quality characteristics should be evaluated using destructive tests. Due to the nature of the tests, we could not measure key product quality characteristics directly and this issue added a constraint to the optimisation problem. The developed model under the defined scenario above was evaluated in the cement industry. Results show that the proposed model simulates the operational conditions satisfactorily.

Keywords: multi-objective optimisation; design of experiments; DOE; MSE; mean squared error; process capability; quality loss function; DPMO; six sigma level; robust design; tolerance design; destructive characteristics; cement industry; case study; product quality; simulation.

DOI: 10.1504/IJISE.2016.076871

International Journal of Industrial and Systems Engineering, 2016 Vol.23 No.3, pp.311 - 350

Received: 16 Apr 2014
Accepted: 25 Sep 2014
Published online: 05 Jun 2016 *

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