Department of Industrial Management
National Taiwan University of Science and Technology
43, Keelung Rd. Sec. 4, Taipei, Taiwan
Failure mode and effect analysis (FMEA) is a widely used risk assessment tool to identify the potential failure modes of a product or a process. By ranking the priorities for corrective action according to the respective effects of the failures, the chance of the failures can be reduced or eliminated. However, there could be several difficulties during conducting conventional FMEA such as the subjective and qualitative description in natural language, the relative importance among the risk ratings, the difference of risk representation among the same ratings; and the knowledge shared among FMEA team members. Thus, a new risk assessment system based on fuzzy theory is proposed in this paper to deal with these difficulties. Furthermore, an FMEA is conducted for a sewage plant to demonstrate the proposed fuzzy assessment of FMEA.
Keywords: failure mode and effect analysis (FMEA), risk assessment, fuzzy theory.
(*Contact: E-mail rhyeh@mail.ntust.edu.tw )
Cite this article as: Ruey Huei Yeh and Mei-Huan Hsieh, "Fuzzy Assessment of FMEA for a Sewage Plant," Journal of the Chinese Institute of Industrial Engineers, 24, 506-512 (2007).