- Title
- System dynamics modeling for multi-state systems
- Creator
- Khorshidi, Hadi; Gunawan, Indra; Ibrahim, Yousef
- Date
- 2015
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/100578
- Identifier
- vital:10565
- Identifier
- ISBN:9781138028791 (ISBN)
- Abstract
- In this paper, the dynamic behavior of the system reliability is modeled by system dynamics approach. Since the reliability levels of the components and systems changes during functioning periods, this variability should be considered in reliability assessment. System dynamics has been used to simulate the dynamic interactions of the phenomena in different areas such as economics, environment, social, humanity, management, and engineering. In system dynamics, Causal Loop Diagrams (CLDs) and stock and flow structures are employed to both represent the elements and model their interactions in order to predict the future status of the system. Due to the capability of the system dynamics in capturing the dynamic behavior of complex systems, it is used for a dynamic assessment of system reliability. The components in this system are multi-state so that they have more performance levels than failure and working states. A case of a multi-state weighted k-out-of-n system is simulated in this study. Software iThink is used to develop the dynamic model for the case study. The results of the system dynamics approach are compared with the outputs of the dynamic availability assessment by mathematical modeling. In addition, the associated cost of maintenance activities is added in the model. Therefore, different scenarios can be evaluated in terms of cost and reliability with the intention of finding optimal decisions. Finally, a sensitivity analysis has been conducted under various conditions in the simulation model. © 2015 Taylor & Francis Group, London.
- Publisher
- CRC Press/Balkema
- Relation
- 25th European Safety and Reliability Conference, ESREL 2015; Zurich, Switzerland; 7th-10th September 2015 p. 925-930
- Rights
- © 2015 Taylor & Francis Group, London.
- Rights
- This metadata is freely available under a CCO license
- Subject
- Reliability theory; Safety engineering; Sensitivity analysis; System theory; Availability assessment; Causal loop diagrams; Dynamic interaction; Reliability assessments; System dynamics approach; System dynamics model; System reliability; Weighted k-out-of-n system; Reliability
- Reviewed
- Hits: 978
- Visitors: 955
- Downloads: 1
| Thumbnail | File | Description | Size | Format |
|---|