Doctoral Dissertations


Risk in early design (RED)

Keywords and Phrases

Conceptual design; Function based design


"Risk assessments are necessary to anticipate and prevent accidents from occurring or repeating. This study focuses specifically on the relationship between function and risk in early design by presenting a mathematical mapping from product function to risk assessments which can be used in the conceptual design phase. This type of mapping will aid designers by removing the subjectivity of the likelihood and consequence value from a risk element, provide four key risk element properties (design parameter, failure mode, likelihood, and consequence) for numerous risk elements with one simple mathematical calculation, and provide a means for inexperienced designers to effectively address risk in the conceptual design phase. In addition, the level of detail a functional model should be written in to produce adequate risk assessments is examined. Four case studies are used to validate the proposed mapping: a spacecraft orientation subsystem, a subsystem to guide science instruments on an extraterrestrial, subsystems from a Bell 206 rotorcraft, and a nuclear power station"--Abstract, page iii.


Mechanical and Aerospace Engineering

Degree Name

Ph. D. in Mechanical Engineering


Accompanying CD-ROM, available at Missouri S&T Library, contains the appendix to this dissertation; the CD-ROM files include the calculations that support the risk assessments presented in this work as well as the functional models of the products studied--leaf 138.>br>System requirements: Microsoft Excel and Canvas.


University of Missouri--Rolla

Publication Date

Fall 2005


xvi, 141 pages

Note about bibliography

Includes bibliographical references (pages 139-140).


© 2005 Katie Amanda Grantham Lough, All rights reserved.

Document Type

Dissertation - Citation

File Type




Subject Headings

Engineering -- Risk assessment
Risk management
Engineering design -- Decision making

Thesis Number

T 8855

Print OCLC #


Link to Catalog Record

Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.

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