Systems Engineering Capstone Project Reports

Series Type
Degree-Earning Works

Publication Search Results

Now showing 1 - 10 of 198
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2022-09) Auld, Sean G.; Camp, Daniel V.; Kylander, Paul; Vey, Nathan; Willis, Jerald J.; Eldred, Ross A.; Van Bossuyt, Douglas L.; Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Lussier, Jonathan
    This research effort examined the current advanced battery requirement (baseline) and projects anticipated battery requirements for the operating force in 2035 and 2045. The research is conducted using a mission engineering perspective to determine the battery requirements. The analysis includes battery chemistry, energy density, charge/discharge rate, safety concerns, and the like, of the battery. In this research the following questions are answered: What is the current advanced battery requirement (baseline)? What is the projection for batteries required by the operating force by 2035? What is the projection for batteries required by the operating force by 2045? Upon completion of the research, the team was able to definitively determine that there will be a role for Li-ion batteries within the fleet of Navy vessels. That role will, however, be limited to running specific subsystems or equipment and will not replace the ship generators. This will remain true until the energy density of battery technology even begins to approach that of petrochemicals, which we believe is many years away if possible.
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2018-09) Broadfoot, Meredith; Bush, Catherine; Harpel, Beth L.; Lajoie, Thomas; Laube, Paul H.; Parcus, Allison; O'Grady, Michael R.; Overman, Emily A.; Hernandez, Alejandro S.; Paulo, Eugene P.; Beery, Paul T.; O'Halloran, Bryan M.; Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Van Bossuyt, Douglas
    The United States Navy (USN) employs distributed maritime operations (DMO) by increasing the offensive capabilities of its surface fleet, known as adaptive force packages (AFP). One component of DMO, rotary wing aircraft supporting anti-surface warfare (ASuW), lacks a long-range weapon capability. The purpose of this project was to determine the benefit to DMO of providing the MH-60S fleet with a long-range standoff weapon capability, determine the feasibility of integrating a long-range missile (LRM) onto the MH-60S, and determine the capabilities required of that weapon system by answering the following main two project questions: How can the USN use the MH-60S in greater capacity in DMO for ASuW missions, and what is the current trade space of long-range ASuW weapons that can be added to the MH-60S to affect the DMO environment? A discrete event model was created to simulate ASuW scenarios within DMO and to evaluate the effects to the established measures of effectiveness and performance. Analysis shows that the addition of LRMs provides an increased capability and reduces the overall percentage of threats to the AFP. An analysis of alternatives revealed only three available LRMs are feasible for the USN’s consideration.
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2022-12) Bell, Jacob M.; Berry, John L.; Bowers, Christian F.; Slagle, Charles D.; Giachetti, Ronald E.; Van Bossuyt, Douglas L.; Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE)
    This report performs a gap analysis on microgrid models with respect to climate change risks at Naval installations. Six climate change risks are identified for the model analysis including drought, flooding, heat, cold, wildfires, and weather extremes. Each climate change risk is decomposed into ordered effects that inform the impacts that the climate risks may have on microgrids. The climate change risks, ordered effects, and the impacts on microgrids are used to analyze three microgrid models to determine if they adequately incorporate the six climate risks. A model analysis framework is developed to identify gaps in the approach of the models, the input parameters of the models, and the assumptions made in the models. The analysis demonstrates that gaps exist in each model when considering the climate change risks, the ordered effects, and the impacts to the microgrid. These gaps exist in all three models analyzed using the model analysis framework. The identified gaps are used to develop recommendations for ways to improve the incorporation of the climate change risks into microgrid models and the necessary research required to inform that data used in microgrid models.
  • Publication
    Analysis of energy efficiencies and source tradespace in an A2/AD seabase-to-shore operation with an asymmetric threat
    (Monterey, California: Naval Postgraduate School, 2016-12) Cevallos, Reniery; Hoff, Jeremy; Martinez-Casiano, Jose; McCrorey, Keith; Robinson, Will; Paulo, Eugene P.; Sweeney, Joseph; Beery, Paul; Team East, Systems Engineering Cohort 311-152O; Systems Engineering (SE)
    This capstone project supported the mission of the United States Marine Corps (USMC) Expeditionary Energy Office (E2O) for development and assessment of solutions that increase the energy efficiency of USMC operations in an antiaccess/area denial (A2/AD) mission. Primarily, this study analyzed energy efficiency during USMC seabase-to-shore operations by developing an operational model to determine the best combination of connectors among all feasible combinations within the selected seabase. This capstone concluded that mission objectives for throughput and fuel consumption during operations could not be met in all scenarios by all connector combinations, and identified why certain combinations of connectors had better broad utility and operational effectiveness. The secondary objective of this study was the exploration of new and alternative energy generation methods that are employable by the USMC, which maximize energy efficiency of Marine air-ground task force (MAGTF) operations at the shore site. Evaluation criteria were used to investigate feasible alternative energy sources that could support the power generation of the MAGTF operations. This capstone concluded that alternative energy technologies, when combined with diesel-electric generators, helped reduce fuel consumption of the MAGTF operations, and identified their availability and effectiveness for meeting energy goals.
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2019-12) Austin, Jacob E.; Dimiero, Thomas A.; Johnson, Derek; Kee, Michael B.; McCurdy, Reuben B.; Sweeney, Joseph W., III; Hernandez, Alejandro S.; Dillard, John T.; Semmens, Robert; Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE)
    This report presents the development of a model designed to assist the United States Army Special Operations Command (USASOC) in prioritizing its acquisition requirements. Traditional benchmarks for obligations and expenditures from the Office of the Secretary of Defense do not sufficiently address USASOC’s concern for capability in the hands of the Special Operations Forces (SOF) operator. Existing methods focus on financial metrics instead of capability-based analysis. This report discusses how the team analyzed stakeholder requirements, decomposed them into traceable value measures, and created a working value model: the Capabilities Assessment Value Model (CAVM). The model assesses projects based on the capability the product or system will provide to the warfighter. Previous research on USASOC acquisitions, qualitative and quantitative value modeling, measurement theory, and detailed input from SOF operators and their leadership are the basis for the development of the CAVM. Unique to the CAVM is the model’s ability to generate a value score that enables USASOC to independently rank-order potential investment projects into a fiscal year order of merit list (OML). The model is a novel evaluation tool that integrates into USASOC’s current process yet breaks from the traditional methods of measuring programmatic success. The CAVM provides USASOC with additional decision-making analysis that focuses on the capability provided to the end user.
  • Publication
    Investigation of requirements and capabilities of next-generation mine warfare unmanned underwater vehicles
    (Monterey, California: Naval Postgraduate School, 2017-12) Camacho, Miguel; Galindo, David; Herrington, Daniel; Johnson, Thomas; Olinger, Ali; Sovel, James; Stith, William; Wade, Jeffrey; Walker, Peter; Miller, Gregory; Beery, Paul; Paulo, Eugene; Systems Engineering (SE)
    This report identifies the system characteristics that have the largest impact on mine counter-measure (MCM) unmanned underwater vehicle (UUV) performance. Model-based systems engineering (MBSE) tools, including functional flow block diagrams and functional hierarchies, are used to logically define MCM UUV operations and support the development of alternative concepts of operations. A discrete event simulation is used to model operations for a design of experiments selected set of system characteristic combinations. Statistical analysis is applied to simulation outputs to identify UUV design characteristics with the most significant impact on the time taken for an MCM UUV to perform the detect and classify mission. The main conclusions of this study are that the most important system characteristics for MCM UUVs are UUV travel speed and sensor width, and that bandwidth limitations for subsurface communications eliminate expected benefits of constant communication between UUVs and their parent vessels.
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2020-12) Allen, Robert D.; Boatwright, Mitchell J.; Hughes, Shad S.; McCune, Sean S.; Pfiester, John J.; Hatch, William D., II; Pollman, Anthony G.; Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Systems Engineering (SE); Hernandez, Alejandro S.
    The United States Naval Academy (USNA) does not possess an effective management plan for the acquisition of the 44-foot Navy sail training craft (STC), which has led to cost overruns and late deliveries. A review of the past acquisitions of the Mark I and Mark II STC revealed a possible effective solution is a stakeholder management plan. This capstone project answers the question of how the USNA might utilize the systems engineering process to develop an effective internal stakeholder management strategy that generates effective and actionable requirements for the acquisition of the next-generation STC while preserving a predictable and timely acquisitions process. Utilizing tools and techniques developed by data collection, this research found the essential elements to a successful stakeholder management plan are to identify, analyze, engage, and monitor stakeholders. These essential elements integrated with techniques used in corporate America, such as managing for stakeholders and the stakeholder circle, can reduce friction and issues within the STC program for the USNA. Identified avenues for future research are utilizing the systems engineering process for the development of structural stakeholder management elements, improving stakeholder management requirements elicitation, and developing stakeholder management plan validation methods.
  • Publication
    Systems approach to designing a maritime Phase Zero Force for the year 2020
    (Monterey, California: Naval Postgraduate School, 2009-06) Dunn, Jarrett; Lee, Chet; Thurston, Tim; Gahl, Christopher; Luedke, Brandon; Knowles, Laurie; Smith, James; Ang, Chez Yee; Bair, Robert; Boey, Chung Wai; Chia, Wan Yin; Chia, Wee Lee; Devieash, James; Eng, Chun Heong; Foong, Yew Chong; Ho, Chien Cheong Gerald; Lee, Han Chaun; Lee, Hong Aik; Leong, Weng Wai; Mok, Chaun Hao; McClure, James; Ong, Choon Wei Roy; Quek, Kim Meng Anthony; Rozen, Nir; See, Mei Eng Elaine; Chee Yong Ng; Ong, Chiou Perng; SEA Cohort SEA-15; Langford, Gary O.; Systems Engineering (SE); Graduate School of Engineering and Applied Science (GSEAS); Systems Engineering (SE); SEA Cohort SEA-15
    This report details the construct of a maritime force designed solely for the accomplishment of Phase Zero missions. Accomplishment of Phase Zero missions will increase a region's stability thus decreasing the spread of radical ideologies that could spawn large scale terrorist attacks and prevent smaller conflicts from growing into larger more expensive ones. To devise this force the integrated study team had to take the broad idea of Phase Zero operations and determine which specific missions contribute to the completion of what they defined as the overall Phase Zero mission. Based on these missions, the integrated study team built scenarios that were representative of the entire Phase Zero mission area. These scenarios were used to establish what capabilities were important to a maritime Phase Zero Force. With these capabilities in mind, the team constructed maritime forces and then evaluated them against the same scenarios to determine which ones performed better. The recommended force can be fielded for an annual cost of $360 million and could accomplish all of the Phase Zero scenarios that the integrated study team built.
  • Publication
    Littoral undersea warfare in 2025
    (Monterey, California. Naval Postgraduate School, 2005-12) Bindi, Victor; Kaslik, Michael; Baker, Jeffrey; Manning, Keith; Billington, Ryan; Horton, Peter; Gallassero, Tawanna; Mueller, Arthur; Gueary, Joseph; Scherry, Justin; Harts, Nathan; Strunk, John; Systems Engineering (SE); Graduate School of Engineering and Applied Science (GSEAS); Systems Engineering (SE)
    The US Navy is unlikely to encounter a sea-borne peer competitor in the next twenty years. However, some regional powers will seek to develop submarine forces which could pose a significant threat in littoral waters. In this context, the Littoral Anti-Submarine Warfare (ASW) in 2025 Project applied Systems Engineering principles and processes to create a number of competing ASW force architectures capable of neutralizing the enemy submarine threat. Forces composed of distributed unmanned systems and projected conventional ASW force systems were modeled and analyzed. Results provided insight to ASW challenges and suggested continued efforts that are required to further define and integrate the contribution of evolving technologies into the complex undersea battlespace.
  • Publication
    (Monterey, CA; Naval Postgraduate School, 2018-06) Turner, Travis M.; Klamo, Joseph; Systems Engineering (SE); Whitcomb, Clifford A.
    This research considers square and rectangular cross-sectional shapes for unmanned underwater vehicle (UUV) parallel mid-bodies as a means for reducing wave-induced loads when operating near the surface. The inquiry is addressed through experimental model testing in a monochromatic wave environment with a circular cross-section model as a reference. The results suggest there is a loading difference between rectangular and circular models but little difference between circular and square cross-sections. An exponentially decaying depth dependency is observed for near-surface depths, which enables extrapolation of predicted forces and moments to other operating depths not tested. Reducing the depth further such that the distance between the surface and the vehicle center-line is less than the hull diameter exhibits a somewhat different behavior. This identifies a very-near-surface region where current modeling is inadequate. Non-circular hull designs can reduce wave-induced loads and effectively reduce operating depths for underwater vehicles. The findings support further research to determine optimal design points and to evaluate the effects of different designs on system architectures.