The Proceedings of Design & Systems Conference
Online ISSN : 2424-3078
2023
Session ID : 3208
Conference information

Development of a technology for expanding the causal relationships among faults using physical formula
*Yuki SHIMIZU
Author information
CONFERENCE PROCEEDINGS RESTRICTED ACCESS

Details
Abstract

We are developing a technology that supports FTA (Fault Tree Analysis) to reduce omissions of fault factors and improve efficiency. In this study, we developed a technology for expanding the causal relationships among faults using physical formula in order to generate a mutually exclusive and collectively exhaustive fault tree. We devised a logic of expansion from formulas based on the concept that there is a causal relationship between the variables on the left and right side of a formula. In addition, we devised a technique to narrow down only factors that could physically occur by using the correlation of variables on the left and right side of a formula. By using physical formulas of a fastening component as an example, we verified that mutually exclusive and collectively exhaustive fault tree was generated from causal models based on physical formulas properly.

Content from these authors
© 2023 The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top