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A methodology to link cost and relia...

Krevor, Zachary C.

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A methodology to link cost and reliability for launch vehicle design.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	A methodology to link cost and reliability for launch vehicle design./
Author:	Krevor, Zachary C.
Description:	264 p.
Notes:	Adviser: Alan Wilhite.
Contained By:	Dissertation Abstracts International68-07B.
Subject:	Engineering, Aerospace. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3271538
ISBN:	9780549107385

A methodology to link cost and reliability for launch vehicle design.
Krevor, Zachary C.

A methodology to link cost and reliability for launch vehicle design. - 264 p.

Adviser: Alan Wilhite.

Thesis (Ph.D.)--Georgia Institute of Technology, 2007.

The results show that both the Saturn V and future launch vehicles could be optimized to be significantly cheaper, be more reliable, or have a compromise solution by illustrating how cost and reliability are coupled with vehicle configuration changes.

ISBN: 9780549107385Subjects--Topical Terms:

1018395
Engineering, Aerospace.

A methodology to link cost and reliability for launch vehicle design.
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020 $a 9780549107385
035 $a (UMI)AAI3271538
035 $a AAI3271538
040 $a UMI $c UMI
100 1 $a Krevor, Zachary C. $3 1278874
245 1 2 $a A methodology to link cost and reliability for launch vehicle design.
300 $a 264 p.
500 $a Adviser: Alan Wilhite.
500 $a Source: Dissertation Abstracts International, Volume: 68-07, Section: B, page: 4621.
502 $a Thesis (Ph.D.)--Georgia Institute of Technology, 2007.
520 $a The results show that both the Saturn V and future launch vehicles could be optimized to be significantly cheaper, be more reliable, or have a compromise solution by illustrating how cost and reliability are coupled with vehicle configuration changes.
520 $a This dissertation is focused on the quantitative metrics of performance, cost, and reliability for future launch vehicles. Methods are developed that hold performance constant for a required mission and payload so that cost and reliability can be traded. Reliability strategies such as reducing the number of engines, increasing the thrust-to-weight ratio, and adding redundant subsystems all increase launch vehicle reliability. However, there are few references that illustrate the cost of increasing launch vehicle reliability in a disciplined, integrated approach.
520 $a For launch vehicle design, integrated performance, cost, and reliability disciplines are required to show the sensitivity of cost to different reliability strategies. A methodology is presented that demonstrates how to create the necessary launch vehicle reliability models and integrate them with the performance and cost disciplines. An integrated environment is developed for conceptual design that can rapidly assess thousands of launch vehicle configurations. The design process begins with a feasible launch vehicle configuration and its mission objectives. The performance disciplines, such as trajectory analysis, propulsion, and mass estimation are modeled to include the effects of using different reliability strategies. Reliability models are created based upon the launch vehicle configuration. Engine reliability receives additional attention because engines are historically one of the leading causes of launch vehicle failure. Additionally, the reliability of the propulsion subsystem changes dynamically when a launch vehicle design includes engine out capability. Cost estimating techniques which use parametric models are employed to capture the dependencies on system cost of increasing launch vehicle reliability. Uncertainty analysis is included within the cost and reliability disciplines because of the limited historical database for launch vehicles. Optimization is applied within the integrated design environment to find the best launch vehicle configuration based upon a particular weighting of cost and reliability.
590 $a School code: 0078.
650 4 $a Engineering, Aerospace. $3 1018395
650 4 $a Engineering, System Science. $3 1018128
690 $a 0538
690 $a 0790
710 2 $a Georgia Institute of Technology. $3 696730
773 0 $t Dissertation Abstracts International $g 68-07B.
790 $a 0078
790 1 0 $a Wilhite, Alan, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3271538