A Conceptual Design Phase Risk Assessment Methodology for Space-based System of Systems

Abstract As counterfeiting techniques and processes grow in sophistication, the methods needed to detect these parts must keep pace. This has the unfortunate effect of raising the costs associated with managing this risk. In order to ensure that the resources devoted to counterfeit detection are commensurate with the potential effects and likelihood of counterfeit part usage in a particular application, a risk based methodology has been adopted for testing of electrical, electronic, and electromechanical (EEE) parts by the SAE AS6171 set of standards. This paper provides an overview of the risk assessment methodology employed within AS6171 to determine the testing that should be utilized to manage the risk associated with the use of a part. A scenario is constructed as a case study to illustrate how multiple solutions exist to address the risk for a particular situation, and the choice of any specific test plan can be made on the basis of practical considerations, such as cost, time, or the availability of particular test equipment.

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Educated search—A generic platform for partial modification at conceptual design phase of multidisciplinary problems

Computer-Aided Design ◽

10.1016/j.cad.2013.02.001 ◽

2013 ◽

Vol 45 (6) ◽

pp. 991-1004 ◽

Cited By ~ 3

Author(s):

Alireza Maheri ◽

Askin T. Isikveren

Keyword(s):

Conceptual Design ◽

Design Phase ◽

Conceptual Design Phase

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Applying Function-Based Failure Propagation in Conceptual Design

Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B ◽

10.1115/detc2007-35475 ◽

2007 ◽

Cited By ~ 10

Author(s):

Daniel Krus ◽

Katie Grantham Lough

Keyword(s):

Risk Analysis ◽

Product Design ◽

Conceptual Design ◽

Functional Model ◽

Thermal Control ◽

Design Phase ◽

Historical Knowledge ◽

Conceptual Design Phase ◽

Failure Propagation ◽

Potential Risks

When designing a product, the earlier the potential risks can be identified, the more costs can be saved, as it is easier to modify a design in its early stages. Several methods exist to analyze the risk in a system, but all require a mature design. However, by applying the concept of “common interfaces” to a functional model and utilizing a historical knowledge base, it is possible to analyze chains of failures during the conceptual phase of product design. This paper presents a method based on these “common interfaces” to be used in conjunction with other methods such as Risk in Early Design in order to allow a more complete risk analysis during the conceptual design phase. Finally, application of this method is demonstrated in a design setting by applying it to a thermal control subsystem.

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