Reliability Model of Mechanical Components with Dependent Failure Modes
A mechanical component may fail in many modes that are usually not independent. There is generally not a joint probability density function to describe these correlated failure modes. Thus, it is difficult to compute the reliability when considering the correlations between the failure modes. It is...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Hindawi Limited
2013-01-01
|
Series: | Mathematical Problems in Engineering |
Online Access: | http://dx.doi.org/10.1155/2013/828407 |
id |
doaj-e934e2f6663a4b649ac682ed443f29a2 |
---|---|
record_format |
Article |
spelling |
doaj-e934e2f6663a4b649ac682ed443f29a22020-11-24T22:25:31ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472013-01-01201310.1155/2013/828407828407Reliability Model of Mechanical Components with Dependent Failure ModesShijie Wang0School of Mechanical Engineering, Shenyang University of Technology, Shenyang, Liaoning 110870, ChinaA mechanical component may fail in many modes that are usually not independent. There is generally not a joint probability density function to describe these correlated failure modes. Thus, it is difficult to compute the reliability when considering the correlations between the failure modes. It is supposed that three or more failure modes arise synchronously to be a very small probability event. The relationship between ultimate state functions in different failure modes is established by utilizing linear regression method. A double integration model for reliability of mechanical components with dependent failure modes is built according to stress-strength interference model. In case of square, cube, or exponential relationship between two ultimate state functions, a linear transformation is made. An example of pin that may fail in shear fracture, bruise, or both is discussed. The reliability is compared with that obtained by using Monte Carlo method, which represents that the reliability model with dependent failure modes proposed is correct.http://dx.doi.org/10.1155/2013/828407 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shijie Wang |
spellingShingle |
Shijie Wang Reliability Model of Mechanical Components with Dependent Failure Modes Mathematical Problems in Engineering |
author_facet |
Shijie Wang |
author_sort |
Shijie Wang |
title |
Reliability Model of Mechanical Components with Dependent Failure Modes |
title_short |
Reliability Model of Mechanical Components with Dependent Failure Modes |
title_full |
Reliability Model of Mechanical Components with Dependent Failure Modes |
title_fullStr |
Reliability Model of Mechanical Components with Dependent Failure Modes |
title_full_unstemmed |
Reliability Model of Mechanical Components with Dependent Failure Modes |
title_sort |
reliability model of mechanical components with dependent failure modes |
publisher |
Hindawi Limited |
series |
Mathematical Problems in Engineering |
issn |
1024-123X 1563-5147 |
publishDate |
2013-01-01 |
description |
A mechanical component may fail in many modes that are usually not independent. There is generally not a joint probability density function to describe these correlated failure modes. Thus, it is difficult to compute the reliability when considering the correlations between the failure modes. It is supposed that three or more failure modes arise synchronously to be a very small probability event. The relationship between ultimate state functions in different failure modes is established by utilizing linear regression method. A double integration model for reliability of mechanical components with dependent failure modes is built according to stress-strength interference model. In case of square, cube, or exponential relationship between two ultimate state functions, a linear transformation is made. An example of pin that may fail in shear fracture, bruise, or both is discussed. The reliability is compared with that obtained by using Monte Carlo method, which represents that the reliability model with dependent failure modes proposed is correct. |
url |
http://dx.doi.org/10.1155/2013/828407 |
work_keys_str_mv |
AT shijiewang reliabilitymodelofmechanicalcomponentswithdependentfailuremodes |
_version_ |
1725757164182568960 |