An approach for integrated risk and opportunity quantification and assurance in design
Abstract/Contents
- Abstract
- Increasing demand for better performance, a compressed schedule for design and development, and a competitive market drive for a more cost effective design elevates the risk of failure to meet product requirements in the presence of uncertainty. Such a failure is addressed by either accepting the consequence without a change or by requiring a change in the design, or in the design process, to meet the requirement. For projects with long scale development period and the associated high investment cost, these alternatives increasingly become unacceptable as a design evolves. The impact of design change becomes more costly to implement, and accepting the consequence is either not an option or violates the guaranteed features of the product. Risk is employed as a metric to indicate the level of assurance for compliance to a requirement, or an objective due to uncertainty or variations in design parameters or in design processes. The requirements may include technical requirements on safety and performance of the design, or process requirements on cost, schedule of a system, subsystems or components. A risk identification and classification method based on a system's compliant robustness in the presence of uncertainty in parameters is introduced. A methodology for risk assurance comprising of the Risk Assessment Process and the System Development Process is presented. This integrated process provides assurance to meet an acceptable risk level, and to minimize likelihood of a need for change in either the design or the design process due to uncertainty as the design maturity is progressed. Major advantages of the proposed methodology include its integration with the System Development Process and its compatibility with the existing recommended engineering practices.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2014 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Najmabadi, Kioumars |
|---|---|
| Associated with | Stanford University, Department of Mechanical Engineering. |
| Primary advisor | Waldron, Kenneth J |
| Thesis advisor | Waldron, Kenneth J |
| Thesis advisor | Fischer, Martin, 1960 July 11- |
| Thesis advisor | Sheppard, S. (Sheri) |
| Advisor | Fischer, Martin, 1960 July 11- |
| Advisor | Sheppard, S. (Sheri) |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Kioumars Najmabadi. |
|---|---|
| Note | Submitted to the Department of Mechanical Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2014. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2014 by Kioumars Najmabadi
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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