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Filtering by: Creator Ryan, Lawrence J. Remove constraint Creator: Ryan, Lawrence J. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Unmanned Aerial Vehicle Propulsion

    Creator:
    Brown, Sean
    Abstract:
    There is a growing US interest in UAVs for many applications ranging from agriculture to military. One area of improvement that can be realized in each category is propulsion. Engines with greater efficiency would result in longer mission duration, leading to cost savings and increased usefulness for UAV owners and...
    Resource Type:
    Honors College Thesis
    Full Text:
    ) ............................................................................................................... 33 Figure 23: Two Ryan Firebees ready for deployment from a DC-130 ("DC-130 Mounted Firebees

  • Unmanned Aerial Vehicle Black Box

    Creator:
    Diebold, John
    Abstract:
    This project created a stand-alone unit capable of providing on-board sensing and processing for robotic vehicles. This unit was designed to be compact, lightweight, inexpensive, and adaptable. The goal of this project is to help advance robotics research in mapping and multi-agent coordination by making it easier to equip vehicles...
    Resource Type:
    Honors College Thesis
    Full Text:
    time and input. Thank you to Ryan Skeele for his help and guidance with the technical details of the

  • Understanding Designer Mental Models to Support Computer Directed Analogical Design

    Creator:
    Arlitt, Ryan M.
    Abstract:
    Analysis of alternative concepts has a significant impact on design project outcomes, and yet many design teams fail to consider a significantly broad range of conceptual solutions. Within the realm of conceptual design exists a technique called design by analogy (DBA) -- the practice of reapplying old solutions to new...
    Resource Type:
    Dissertation
    Full Text:
    Directed Analogical Design AN ABSTRACT OF THE DISSERTATION OF Ryan M. Arlitt for the degree of

  • Tracking of Melt Pool Motion Using Numerical Analysis of Laser Powder Bed Fusion

    Creator:
    Cox, Bryce
    Abstract:
    Laser Powder Bed Fusion (LPBF) is a process commonly used to create additively manufactured metal parts. The flexibility and complexity allowed by the LPBF process provides opportunity for significant advancement in multiple industries as parts can be customized in shape and function for specific needs. These benefits can be compounded...
    Resource Type:
    Dissertation
    Full Text:
    . Dr. Ghayoor assisted with creating samples and analyzing data. Ryan Doyle assisted with facility

  • Towards a guided framework for innovative engineering through the generation and evaluation stages of concept design

    Creator:
    Oman, Sarah Kay
    Abstract:
    This work proposes a framework of concept generation and evaluation that takes into consideration the benefit of creativity and innovation in current market trends. By educating engineers in how to increase creativity in concept design and assess it quantitatively, the next generation of designers will be a step ahead of...
    Resource Type:
    Dissertation

  • Topological Design Considering Uncertainty and Hyperelasticity

    Creator:
    Pham, Trung
    Abstract:
    Topology optimization (TO) is a mathematical method to find the optimal size, shape and connectivity of a domain under specified conditions, and has had many applications in engineering design. However, challenges remain in realizing TO as an effective design tool for many design situations. Uncertainty is ubiquitous in nature and...
    Resource Type:
    Dissertation
    Full Text:
    ) are uncorrelated and satisfy: E[ξi] = 0, E[ξiξj] = δij ξi(ω) = 1√ λi ∫ D (y(ω,x)− E[x]) ei(x)dx

  • Thermodynamic analysis of geothermal energy systems with forced recovery from aquifers

    Creator:
    Lee, Se Kyoun
    Abstract:
    A thermodynamic analysis of forced geoheat recovery from aquifers has been accomplished. The system investigated consists of a single recharging-discharging well pair, in a horizontally extensive aquifer, with either power generation or space heating as surface applications. The space heating systems investigated are (i)direct heating, (ii)heat pumps and (iii)a combination...
    Resource Type:
    Dissertation

  • Thermal annealing of Mo/Si multilayers to assess the stability relevant to soft x-ray projection lithography

    Creator:
    Viliardos, Michael A.
    Resource Type:
    Masters Thesis
    Full Text:
    . Warnes, and S. Burhanuddin. Financial support for this study was provided by Lawrence Livermore National

  • The zirconium-silver system

    Creator:
    Kemper, Robert Schooley
    Resource Type:
    Masters Thesis
    Full Text:
    /4...\ ' .4 r_...... J )1 , I .. r . ' rT ., I..-- %Cc'.'.' 1 I I. -- ,s

  • The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

    Creator:
    Walsh, Hannah S.
    Abstract:
    Modern engineered systems are increasingly integrated into society, decentralized, and interconnected. However, scale and complexity create unique challenges in system design, such as emergent behavior and unintended consequences. This work investigates the structural characteristics of robustness in complex engineered systems by identifying patterns of under-recognized vulnerabilities at various levels of...
    Resource Type:
    Dissertation
    Full Text:
    Eq. 2.1, where F is the Fussell-Vesely importance, j is an index for individual cut sets, m is the