Operating Window: An Engineering Measure for Robustness
- 1 February 2004
- journal article
- Published by Taylor & Francis Ltd in Technometrics
- Vol. 46 (1), 25-29
- https://doi.org/10.1198/004017004000000077
Abstract
This article presents a metric for measuring and improving the robustness of engineering systems. Robustness is the ability of the system to avoid failure modes, even in the presence of realistic noises. The metric is the operating window (OW). The OW is the range in some input noise that produces a fixed failure rate in the failure modes. It can be thought of as an inverse method of measuring the ratio of output variance to input variance. The OW is determined while keeping the magnitude of some aggravating noise—the stressing noise—large and controlled. This allows the OW to be measured quickly. This OW approach has proved in practice to be very superior to the traditional ways of trying to develop reliability.Keywords
This publication has 2 references indexed in Scilit:
- Failure Amplification Method: An Information Maximization Approach to Categorical Response OptimizationTechnometrics, 2004
- Operating Window Experiments: A Novel Approach to Quality ImprovementJournal of Quality Technology, 2002