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Development and Acquisition Modeling for Space Campaign Architecting
Development and Acquisition Modeling for Space Campaign Architecting
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105515
- ISBN
- 9798263337193
- DDC
- 658.404
- 서명/저자
- Development and Acquisition Modeling for Space Campaign Architecting
- 발행사항
- [Sl] : Georgia Institute of Technology, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 421 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
- 주기사항
- Advisor: Mavris, Dimitri N.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
- 초록/해제
- 요약Contemporary and future space exploration endeavors are highly complex. Multiple system deployments and concurrent missions-examined as part of a space campaign-are needed to fulfill long-term goals. Given the large time horizon and the development of new space systems to perform those missions, not all the enabling technologies have been matured nor are the new systems completely designed, developed, and tested for implementation. Current conceptual phase methodology for space campaign architecting (SCA) does not adequately account for the development and acquisition (D&A) of new systems and their dependent technologies.The D&A of new systems encompasses the time and resources for technology research and development (R&D), as well as subsystems and systems design, development, testing, and evaluation (DDT&E). This timing and resource allocation for D&A must be included when planning the main missions within a space campaign; otherwise, lack of accounting will result in programmatic gaps when architecting a campaign baseline, which affects the feasibility and viability of the constituent mission architectures.This dissertation presents an approach to model and assess systems D&A for conceptual phase SCA as a programmatic assessment. The SCA methodology is formalized to establish a System-of-Systems (SoS) taxonomy of campaign elements, and then an ontology is defined to map campaign elements to the D&A subproblem space to represent high-level programmatic decision-making. A Binary Integer Programming (BIP) optimization method is applied to the resulting D&A subproblem definition to create a mathematical model. The formulated approach is a methodology with its key components-SCA taxonomy, D&A ontology, and BIP model-representing the multiple SoS levels of a space campaign to understand the life cycle cost and schedule impacts with respect to programmatic decision-making.Experimental results explored the BIP model to understand its response to variations in the larger SCA problem space. This exploration established connections between the computational results of the mathematical model with respect to high-level campaign parameters. Two objective formulations for the BIP model are presented; each simulates a separate programmatic decision-making scenario with differing campaign-level goals and high-level interests. The first formulation is analogous to the programmatic goal of achieving a target end state or capability as quickly as possible-the choice of which systems'D&A to invest in and when should be organized such that the total time required to reach the final mission architecture is minimized. The second formulation models decision-making scenarios where qualitative programmatic goals are quantified, and the choice of system D&A will achieve a mission architecture that best fulfills those goals through the assignation of interest points and maximizing the total points.Both formulations are demonstrated on test sets of technology, system, and mission programs (representing notional mission architectures within a campaign) and varied programmatic parameters. The computational complexity of both formulations are investigated to ensure that the model is not intractable with respect to campaign size, thus implying its resilience in representing the disparate possibilities of conceptual phase space campaigns. The feasibility state of the BIP model and severity of constrainedness is shown to be connected to the viability state of a campaign in the larger SCA problem space. Trends in computational effort depending on programmatic parameters-such as time horizon, budget profile, and quantified programmatic interests-represented the sensitivity of a campaign's viability with respect to those parameters. The BIP model for both objective formulations can respond to changes in high-level campaign parameters, and demonstrates that the overall approach can capture programmatic impacts of life cycle cost and duration of campaign elements during the conceptual phase. Experimental results provide further application insight into scoping a given campaign's representation, signaling possible programmatic trade-offs, and performing sensitivity and robustness studies on campaign elements.The Design Reference Architecture (DRA) 5.0 Nuclear Thermal Propulsion (NTP) mission architecture is the final demonstration of the programmatic assessment to represent a larger campaign and capturing the impact of system D&A. This demonstration provides a working example of how to implement the programmatic assessment in practice. Couplings within the NTP mission architecture were added through the taxonomy and ontology as part of the formulated approach. Changes to the mission architecture chronology were shown due to additional capability demands and programmatic constraints, demonstrating the utility of the entire methodology in practice.
- 일반주제명
- Schedules
- 일반주제명
- Taxonomy
- 일반주제명
- Integer programming
- 일반주제명
- Space exploration
- 일반주제명
- Ontology
- 일반주제명
- Moon
- 일반주제명
- Decision making
- 일반주제명
- Aerospace engineering
- 기본자료저록
- Dissertations Abstracts International. 87-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
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■020 ▼a9798263337193
■035 ▼a(MiAaPQ)AAI32309312
■035 ▼a(MiAaPQ)GeorgiaTech75323
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a658.404
■1001 ▼aZhu, Stephanie Y.
■24510▼aDevelopment and Acquisition Modeling for Space Campaign Architecting
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a421 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: A.
■500 ▼aAdvisor: Mavris, Dimitri N.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2024.
■520 ▼aContemporary and future space exploration endeavors are highly complex. Multiple system deployments and concurrent missions-examined as part of a space campaign-are needed to fulfill long-term goals. Given the large time horizon and the development of new space systems to perform those missions, not all the enabling technologies have been matured nor are the new systems completely designed, developed, and tested for implementation. Current conceptual phase methodology for space campaign architecting (SCA) does not adequately account for the development and acquisition (D&A) of new systems and their dependent technologies.The D&A of new systems encompasses the time and resources for technology research and development (R&D), as well as subsystems and systems design, development, testing, and evaluation (DDT&E). This timing and resource allocation for D&A must be included when planning the main missions within a space campaign; otherwise, lack of accounting will result in programmatic gaps when architecting a campaign baseline, which affects the feasibility and viability of the constituent mission architectures.This dissertation presents an approach to model and assess systems D&A for conceptual phase SCA as a programmatic assessment. The SCA methodology is formalized to establish a System-of-Systems (SoS) taxonomy of campaign elements, and then an ontology is defined to map campaign elements to the D&A subproblem space to represent high-level programmatic decision-making. A Binary Integer Programming (BIP) optimization method is applied to the resulting D&A subproblem definition to create a mathematical model. The formulated approach is a methodology with its key components-SCA taxonomy, D&A ontology, and BIP model-representing the multiple SoS levels of a space campaign to understand the life cycle cost and schedule impacts with respect to programmatic decision-making.Experimental results explored the BIP model to understand its response to variations in the larger SCA problem space. This exploration established connections between the computational results of the mathematical model with respect to high-level campaign parameters. Two objective formulations for the BIP model are presented; each simulates a separate programmatic decision-making scenario with differing campaign-level goals and high-level interests. The first formulation is analogous to the programmatic goal of achieving a target end state or capability as quickly as possible-the choice of which systems'D&A to invest in and when should be organized such that the total time required to reach the final mission architecture is minimized. The second formulation models decision-making scenarios where qualitative programmatic goals are quantified, and the choice of system D&A will achieve a mission architecture that best fulfills those goals through the assignation of interest points and maximizing the total points.Both formulations are demonstrated on test sets of technology, system, and mission programs (representing notional mission architectures within a campaign) and varied programmatic parameters. The computational complexity of both formulations are investigated to ensure that the model is not intractable with respect to campaign size, thus implying its resilience in representing the disparate possibilities of conceptual phase space campaigns. The feasibility state of the BIP model and severity of constrainedness is shown to be connected to the viability state of a campaign in the larger SCA problem space. Trends in computational effort depending on programmatic parameters-such as time horizon, budget profile, and quantified programmatic interests-represented the sensitivity of a campaign's viability with respect to those parameters. The BIP model for both objective formulations can respond to changes in high-level campaign parameters, and demonstrates that the overall approach can capture programmatic impacts of life cycle cost and duration of campaign elements during the conceptual phase. Experimental results provide further application insight into scoping a given campaign's representation, signaling possible programmatic trade-offs, and performing sensitivity and robustness studies on campaign elements.The Design Reference Architecture (DRA) 5.0 Nuclear Thermal Propulsion (NTP) mission architecture is the final demonstration of the programmatic assessment to represent a larger campaign and capturing the impact of system D&A. This demonstration provides a working example of how to implement the programmatic assessment in practice. Couplings within the NTP mission architecture were added through the taxonomy and ontology as part of the formulated approach. Changes to the mission architecture chronology were shown due to additional capability demands and programmatic constraints, demonstrating the utility of the entire methodology in practice.
■590 ▼aSchool code: 0078.
■650 4▼aSchedules
■650 4▼aTaxonomy
■650 4▼aInteger programming
■650 4▼aSpace exploration
■650 4▼aOntology
■650 4▼aMoon
■650 4▼aDecision making
■650 4▼aAerospace engineering
■690 ▼a0538
■690 ▼a0454
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05A.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360382▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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