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Filtering by: Creator Su, Yi-Hsuan Remove constraint Creator: Su, Yi-Hsuan Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering Peer Reviewed No Remove constraint Peer Reviewed: No

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  • Kinematic analysis of legged system locomotion on smooth horizontal surfaces

    Creator:
    Baek, Yoon Su
    Abstract:
    This thesis presents a model of legged locomotion in which position and velocity of body are directly controlled by positions and velocities of feet. One central relationship between foot acceleration, leg stroke and body velocity is developed. Procedures for determining all parameters of a step sequence including periods of constant...
    Resource Type:
    Dissertation
    Full Text:
    horizontal surfaces AN ABSTRACT OF THE THESIS OF Yoon Su Baek for the degree of Doctor of PhilcBcplay in

  • Laboratory creep studies on "Pheasant" and "Expanded" aluminum conductors

    Creator:
    Wilson, Laurence Martin
    Resource Type:
    Masters Thesis

  • Transient conduction with counter mass flow in wood

    Creator:
    Pfeiffer, Nikolaus, 1960-
    Abstract:
    This paper deals with the thermal decompositon of wood slabs under fire conditions. The partial differential equation is solved numerically by the use of an implicit finite difference method. Wood is treated as two components, Lignin and Hemicellulose on one side, and Cellulose on the other side. The chemical reactions...
    Resource Type:
    Masters Thesis
    Full Text:
    heat source or sink per unit volume SPG specific gravity Su surface T temperature t time TN right

  • Assessing Mass Diffusion Modeling in Premixed Flames

    Creator:
    Fillo, Aaron J.
    Abstract:
    Implementing multicomponent diffusion in numerical combustion studies is computationally expensive due to the challenges involved in computing diffusion coefficients. As a result, mixture-averaged diffusion treatments or simpler methods are used to avoid these costs. However, the accuracy and appropriateness of the mixture-averaged diffusion model has not been verified for three-dimensional...
    Resource Type:
    Dissertation
    Full Text:
    cp ∇cp · ∇T , (2.3) ∂ρYi ∂t +∇ · (ρuYi) = −∇ · ji + ω̇i , (2.4) where ρ is the mixture density, u

  • Kinematics of arthropod legs : modeling and measurement

    Creator:
    Albright, Stephen L.
    Abstract:
    This thesis presents a method for determining the kinematic geometry of arthropod legs. A kinematic description makes possible the analysis of arthropod leg motion, as a prelude to investigating how various arthropod species are able to negotiate diverse terrains. Such knowledge will aid in design of legged vehicles. The focus...
    Resource Type:
    Dissertation
    Full Text:
    axis i+1, originally parallel to joint axis i, is rotated slightly about coordinate yi, the values of

  • 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:
    its symmetry. 26 T ab le 2. 1: T h e M B B b ea m : R B T O re su lt s (a ,b ) (1 ,1

  • A model reference adaptive system for control of a flexible mechanical manipulator

    Creator:
    Lee, Byeung Kyun
    Abstract:
    For control of a flexible manipulator, the assumed- mode method is applied to the mathematical model of the model reference adaptive system. In the assumed-mode method, the flexible, continuous manipulator is described by a limited number of degrees of freedom. A modified model reference adaptive system is studied for direct...
    Resource Type:
    Dissertation

  • Evaluating Stiffness Metrics for Predicting the Cost of Chemical Kinetics Integration

    Creator:
    Alferman, Andrew Thomas
    Abstract:
    Simulations of combustion and reacting flows often encounter stiffness in the equations governing chemical kinetics. Explicit solvers for these ordinary differential equations offer low computational expense, but typically cannot efficiently handle stiff systems. In contrast, implicit methods demand greater expense but offer unconditional stability—as a result, most reactive-flow solvers rely...
    Resource Type:
    Masters Thesis
    Full Text:
    + ρα cp ∇cp· ∇T , (2.3) ∂ρYi ∂t +∇· (ρuYi) = −∇· ji + ω̇i , (2.4) where t is time, ρ is the fluid

  • A theoretical study of the radiative contribution to heat transfer between a high-temperature, large-particle gas-fluidized bed and an immersed tube

    Creator:
    Mahbod, Bahram
    Abstract:
    An analytical model of the radiative contribution to the total heat transfer between a large-particle (greater than 1 mm) gas-fluidized bed and an immersed horizontal tube is discussed. The model is applied to the case of a bubbling bed and the emulsion phase contribution is obtained from a detailed analysis...
    Resource Type:
    Dissertation
    Full Text:
    .(y ,y ) + E E. dl-d3 1 j crTl j =2 7 IA. 7 4 4- f ca.(yi)dFdi_di(yiYi) j=2121j3- q2(72) 4 1

  • Optical sensing and metrology for on-machine surface inspection in manufacturing processes

    Creator:
    Lee, Eddie T.
    Abstract:
    Optical sensing technologies are pivotal in the manufacturing process, specifically in defect detection, tool condition estimation, and monitoring. The research aims to enhance the accuracy, efficiency, and reliability of manufacturing metrology by employing optical sensing technologies, such as laser profilometers and image processing techniques. The dissertation proposes intelligent and flexible...
    Resource Type:
    Dissertation
    Full Text:
    ∫ l 0 z(x)4dx ] where Nx and Ny are the numbers of pixels along the x-axis and y-axis, g(xi, yi) is