Paper Abstract and Keywords |
Presentation |
2009-07-31 16:20
Top Event Probability of a Repairable Dynamic FT Tetsushi Yuge, Nobuyuki Tamura, Shigeru Yanagi (NDA) R2009-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A priority AND gate is a representative logic gate of dynamic fault trees. This paper deals with a repairable dynamic FT, where all the basic events are repaired after the occurrence. Markov analysis is usually adopted for the analysis of a repairable dynamic FT. The difficulty of the method is mainly due to the explosion of the number of states to be considered in the analysis. Another problem is the difficulty to construct the state transition matrix when an OR gate is connected to the input of a priority AND gate. We explain the problems at first. Then we introduce two methods to obtain the steady state top event probability. The proposed methods are an Inclusion-Exclusion based method and a method to enumerate the disjoint cut sequences. These methods are more efficient compared to the conventional Markov approach. However, there are some FTs that the exact top event probability can not be derived by these methods. We discuss the applicability of the methods. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
dynamic fault tree / priority AND gate / minimal cut sequence / Markov analysis / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 161, R2009-31, pp. 53-58, July 2009. |
Paper # |
R2009-31 |
Date of Issue |
2009-07-24 (R) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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R2009-31 |
Conference Information |
Committee |
R |
Conference Date |
2009-07-31 - 2009-07-31 |
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(See Japanese page) |
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Paper Information |
Registration To |
R |
Conference Code |
2009-07-R |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Top Event Probability of a Repairable Dynamic FT |
Sub Title (in English) |
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dynamic fault tree |
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priority AND gate |
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minimal cut sequence |
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Markov analysis |
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1st Author's Name |
Tetsushi Yuge |
1st Author's Affiliation |
National Defense Academy (NDA) |
2nd Author's Name |
Nobuyuki Tamura |
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National Defense Academy (NDA) |
3rd Author's Name |
Shigeru Yanagi |
3rd Author's Affiliation |
National Defense Academy (NDA) |
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Speaker |
Author-1 |
Date Time |
2009-07-31 16:20:00 |
Presentation Time |
20 minutes |
Registration for |
R |
Paper # |
R2009-31 |
Volume (vol) |
vol.109 |
Number (no) |
no.161 |
Page |
pp.53-58 |
#Pages |
6 |
Date of Issue |
2009-07-24 (R) |
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