One Approach for Improvement of FMEA in Risk Analysis and Design Optimization
Failure Modes and Effects Analysis (FMEA) is a methodology for analysis of potential failure modes within a product which evaluates the risk level of failure modes by Risk Priority Number (RPN) and then proposes compensating provision. This paper seeks to address the drawbacksof the calculation of RPN index in traditional FMEA. The Enhanced Risk Priority Number (ERPN) is proposed to prioritize failure modes when two or more failure modes have the same RPN or when there is a disagreement in ranking scale for severity, occurrence and detection. In this paper, A new Fault Management architecture is introduced to provide clear, straight forward and meaningful results that can even be convenient for designers, the relationships between each element of the architecture and how to effectively connect them to observe their power is described in this paper. The new FMEA approach which combined FMEA with Fault Insertion Testing (FIT) and how FIT enables design engineers and all interested parties to observe if the product is performing as expected is discussed to increase the effectiveness of FMEA. So it can increase the precision of risk analysis and provide more information for design optimization.
failure modes and effects analysis risk analysis risk priority number fault management
Huang Mingsheng Wang Qihua Li Yonghong
China Aero-Polytechnology Establishment, Beijing 100028, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
977-980
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）