### Abstract

Conventional failure effect analysis depends on the expert's judgement and experience, which may lead to an erroneous result. To solve this problem, this paper proposes a failure effect analysis using bond-graphs, which represent the system behavior in a unified way from the viewpoint of energy flow. The system state equations obtained from a system bond-graph represent the system behavior in the time space domain, and process variables can be obtained in functional forms of state variables and input variables. Qualitative evaluation of deviations caused by a component failure or external disturbance can be analyzed using a tree graph expression of the system state equations. Not only final deviations remaining under the component failure condition, but also initial transient deviations just after the failure occurrence can be obtained by propagating steady state conditions or assumed deviations along the tree graph. An illustrative example of a water flow control system shows the details of the proposed method.

Original language | English |
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Title of host publication | Proceedings of the Annual Reliability and Maintainability Symposium |

Publisher | IEEE |

Pages | 358-364 |

Number of pages | 7 |

Publication status | Published - 1999 |

Externally published | Yes |

Event | Proceedings of the 1999 Annual Reliability and Maintainability Symposium - Washington, DC, USA Duration: 1999 Jan 18 → 1999 Jan 21 |

### Other

Other | Proceedings of the 1999 Annual Reliability and Maintainability Symposium |
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City | Washington, DC, USA |

Period | 99/1/18 → 99/1/21 |

### Fingerprint

### ASJC Scopus subject areas

- Engineering(all)
- Engineering (miscellaneous)

### Cite this

*Proceedings of the Annual Reliability and Maintainability Symposium*(pp. 358-364). IEEE.

**Disturbance analysis using a system bond-graph model.** / Kohda, Takehisa; Inoue, Koichi; Takata, Shozo; Asama, Hajime.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Proceedings of the Annual Reliability and Maintainability Symposium.*IEEE, pp. 358-364, Proceedings of the 1999 Annual Reliability and Maintainability Symposium, Washington, DC, USA, 99/1/18.

}

TY - GEN

T1 - Disturbance analysis using a system bond-graph model

AU - Kohda, Takehisa

AU - Inoue, Koichi

AU - Takata, Shozo

AU - Asama, Hajime

PY - 1999

Y1 - 1999

N2 - Conventional failure effect analysis depends on the expert's judgement and experience, which may lead to an erroneous result. To solve this problem, this paper proposes a failure effect analysis using bond-graphs, which represent the system behavior in a unified way from the viewpoint of energy flow. The system state equations obtained from a system bond-graph represent the system behavior in the time space domain, and process variables can be obtained in functional forms of state variables and input variables. Qualitative evaluation of deviations caused by a component failure or external disturbance can be analyzed using a tree graph expression of the system state equations. Not only final deviations remaining under the component failure condition, but also initial transient deviations just after the failure occurrence can be obtained by propagating steady state conditions or assumed deviations along the tree graph. An illustrative example of a water flow control system shows the details of the proposed method.

AB - Conventional failure effect analysis depends on the expert's judgement and experience, which may lead to an erroneous result. To solve this problem, this paper proposes a failure effect analysis using bond-graphs, which represent the system behavior in a unified way from the viewpoint of energy flow. The system state equations obtained from a system bond-graph represent the system behavior in the time space domain, and process variables can be obtained in functional forms of state variables and input variables. Qualitative evaluation of deviations caused by a component failure or external disturbance can be analyzed using a tree graph expression of the system state equations. Not only final deviations remaining under the component failure condition, but also initial transient deviations just after the failure occurrence can be obtained by propagating steady state conditions or assumed deviations along the tree graph. An illustrative example of a water flow control system shows the details of the proposed method.

UR - http://www.scopus.com/inward/record.url?scp=0032669759&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032669759&partnerID=8YFLogxK

M3 - Conference contribution

SP - 358

EP - 364

BT - Proceedings of the Annual Reliability and Maintainability Symposium

PB - IEEE

ER -