Failure Cause Analysis—A Structural ApproachSource: Journal of Pressure Vessel Technology:;1996:;volume( 118 ):;issue: 004::page 434DOI: 10.1115/1.2842210Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper presents a methodology to analyze failure cause of a system using structural approach based on digraph and matrix method. Failure causality digraph models the failure cause considering contributing events and their interaction in terms of cause-effect relation, i.e., causality. Failure cause function (VPF − fc ) is obtained from the permanent matrix, obtained from the digraph, which is characteristic of the failure cause. The procedure is useful, not only for the analysis, but also for identification, comparison, and evaluation of the failure cause. The coefficients of similarity and dissimilarity, and identification set based on these are also proposed. These are useful for comparison of two failure causes. In addition, failure cause index (Ifc ) derived from VPF − fc is proposed which evaluates and ranks failure causes of the system. The method permits analysis, identification, and comparison at design as well as operating state of the system and provides the user directions for minimizing the failure causes leading to improvement of the system reliability. The procedure is developed using an example of weld defects.
keyword(s): Failure , Product quality , Reliability AND Design ,
|
Collections
Show full item record
contributor author | O. P. Gandhi | |
contributor author | V. P. Agrawal | |
date accessioned | 2017-05-08T23:51:20Z | |
date available | 2017-05-08T23:51:20Z | |
date copyright | November, 1996 | |
date issued | 1996 | |
identifier issn | 0094-9930 | |
identifier other | JPVTAS-28370#434_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/117517 | |
description abstract | The paper presents a methodology to analyze failure cause of a system using structural approach based on digraph and matrix method. Failure causality digraph models the failure cause considering contributing events and their interaction in terms of cause-effect relation, i.e., causality. Failure cause function (VPF − fc ) is obtained from the permanent matrix, obtained from the digraph, which is characteristic of the failure cause. The procedure is useful, not only for the analysis, but also for identification, comparison, and evaluation of the failure cause. The coefficients of similarity and dissimilarity, and identification set based on these are also proposed. These are useful for comparison of two failure causes. In addition, failure cause index (Ifc ) derived from VPF − fc is proposed which evaluates and ranks failure causes of the system. The method permits analysis, identification, and comparison at design as well as operating state of the system and provides the user directions for minimizing the failure causes leading to improvement of the system reliability. The procedure is developed using an example of weld defects. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Failure Cause Analysis—A Structural Approach | |
type | Journal Paper | |
journal volume | 118 | |
journal issue | 4 | |
journal title | Journal of Pressure Vessel Technology | |
identifier doi | 10.1115/1.2842210 | |
journal fristpage | 434 | |
journal lastpage | 440 | |
identifier eissn | 1528-8978 | |
keywords | Failure | |
keywords | Product quality | |
keywords | Reliability AND Design | |
tree | Journal of Pressure Vessel Technology:;1996:;volume( 118 ):;issue: 004 | |
contenttype | Fulltext |