Document Type : Original Article
Author
Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Putra Malaysia University, 43400 UPM Serdang, Selangor, Malaysia.
Abstract
The quality loss function is conventional techniques in robust design terminology that consider the deviation of output from ideal point and variability as well. Mostly in practice, processes are affected by uncontrollable external factors that cause output of process to be far from ideal points with variability around its exact value. In this research, the common Taguchi quality loss function is applied to propose a new robust optimization model that able to choose optimal results of input variables. In this model, the quality loss function is expanded and a nonlinear optimization model is introduced in order to minimize the effect of environmental noise variables. In the end, a numerical example is presented to show the applicability of the proposed model for investigating the best levels of input variables in the noisy process.
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