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Filtering by: Has journal SIAM Journal on Mathematical Analysis Remove constraint Has journal: SIAM Journal on Mathematical Analysis Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • Reduced order multi-legged mathematical model of cockroach locomotion on inclines

    Creator:
    Peterson, Delvin E.
    Abstract:
    While the locomotion performance of legged robots over flat terrain or known obstacles has improved over the past few decades, they have yet to equal the performance of their animal counterparts over variable terrain. This work analyzes a multi-legged reduced order model of cockroach locomotion on variable slopes which will...
    Resource Type:
    Dissertation
    Full Text:
    : Reduced Order Multi-Legged Mathematical Modeling of Cockroach Locomotion on Inclines Abstract approved

  • Dynamics and stability of lateral plane locomotion on variable inclines

    Creator:
    Bonnono, Scott A.
    Abstract:
    An actuated, bipedal model is developed to investigate lateral plane locomotion dynamics and stability on inclines. Both the point mass case and rigid body case are considered. Variations in the force-free leg length are determined via inverse dynamics to explicitly and implicitly match prescribed lateral and fore-aft force profiles, respectively....
    Resource Type:
    Masters Thesis
    Full Text:
    of Science in Mechanical Engineering presented on June 18, 2009. Title: Dynamics and Stability of

  • Efficient Algorithms for Solving the Median Problem on Real Road Networks

    Creator:
    Ghanbartehrani, Saeed
    Abstract:
    Location theory is a well-established and active research area. The main objective in location theory is to find the best locations for facilities to meet supply and demand constraints and minimize total cost. The median problem (also known as the 1-median problem) is a special case in location analysis that...
    Resource Type:
    Dissertation
    Full Text:
    Industrial Engineering presented on December 3, 2015. Title: Efficient Algorithms for Solving

  • Incorporating Uncertainty in Truckload Relay Network Design

    Creator:
    Mokhtari, Zahra
    Abstract:
    In a relay network for full truckload (TL) transportation, facilities known as relay points (RPs) serve as exchange points where truck drivers can exchange trailers. This would help carriers to assign more regular tours to drivers when compared to the excessively long tours that exist in the traditional Point-to-Point (PtP)...
    Resource Type:
    Dissertation
    Full Text:
    Figure 5: Summary of Research Studies on Alternative TL Dispatching Methods using Mathematical

  • Numerical simulation of cavitating bubble-laden turbulent flows

    Creator:
    Shams Sobhani, Ehsan
    Abstract:
    Many engineering devices and propulsion systems suffer from undesirable effects of cavitation; such as degradation in the efficiency of pumps and turbines, generation of noise and vibration on ship propeller, increased drag and erosion of propeller blade, etc. In spite of decades of research on this problem, detailed study of...
    Resource Type:
    Dissertation
    Full Text:
    classical inception criterion. A PDF analysis on the bubble distribution shows that the larger bubbles are

  • Reduced order modeling of legged locomotion in the horizontal plane

    Creator:
    Wickramasuriya, Gamika Arun
    Abstract:
    Sprawled-posture insects exhibit a remarkable ability to rapidly run in a stable manner over complex terrain, a feat that has yet to be equaled by man-made legged robots. Recent experimental results suggest that these insects may employ a hierarchical control structure, in which locomotion performance emerges from a combination of...
    Resource Type:
    Dissertation
    Full Text:
    the degree of Doctor of Philosophy in Mechanical Engineering presented on December 10, 2009. Title

  • Theoretical modeling and experimental analysis of the flight mechanics of Lepidoptera

    Creator:
    Wilson, Tyler
    Abstract:
    Development of micro air vehicles has led to a strong interest in the biomechanics of flapping fliers such as bats, birds, and insects, due to their ability to perform extreme unsteady maneuvers and fly in confined spaces. Determining the methods and mechanisms used by these fliers is a valuable source...
    Resource Type:
    Masters Thesis
    Full Text:
    Theoretical Modeling and Experimental Analysis of the Flight

  • Wave Energy Converter Array Optimization : Array Economic Analysis and Preliminary Results of a Genetic Algorithm Approach Introducing Cost Factors

    Creator:
    Sharp, Christopher J.
    Abstract:
    With the need to integrate renewable energy sources into the current energy portfolio and the proximity of many population centers to an ocean coastline, it is pressing that marine energy systems, specifically wave energy converters (WECs), are evaluated as potential solutions for meeting energy needs. In order to best understand...
    Resource Type:
    Masters Thesis
    Full Text:
    Analysis and Preliminary Results of a Genetic Algorithm Approach Introducing Cost Factors

  • A methodology for scheduling jobs in a flexible flowshop with sequence dependent setup times and machine skipping

    Creator:
    Pandya, Vaibhav
    Abstract:
    A flexible flowshop, comprised of one or more stages having unrelated parallel machines, is investigated in this research. Unrelated parallel machines can perform the same function but have different capacity or capability. Since this problem is motivated by industry research, dynamic job release times and dynamic machine availability times have...
    Resource Type:
    Masters Thesis
    Full Text:
    mathematical model focuses on minimizing the weighted tardiness of all jobs released in the current planning

  • A multiscale modeling approach for bubble-vortex interactions in hydro-propulsion systems

    Creator:
    Finn, Justin Richard
    Abstract:
    Multiphase flow dynamics are important in many naval and turbomachinery applications, where bubble interaction with low pressure, vortical structures can lead to undesirable cavitation effects. To better understand the underlying phenomena, a multiscale numerical framework is developed to simulate bubble laden flow in dynamic hydro propulsion systems. Several subproblems in...
    Resource Type:
    Masters Thesis
    Full Text:
    degree of Master of Science in Mechanical Engineering presented on June 19, 2009. Title: A Multiscale