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  • A dynamic procedure for evaluation resilient mountings

    Creator:
    Arents, Chester Abbo
    Resource Type:
    Masters Thesis
    Full Text:
    Professor of Mechanical Engineering In Charge of Major Rédacíid'for privacy Head of Departt of

  • Large-strain softening of aluminum in shear at elevated temperature

    Creator:
    Alhajeri, Saleh N.
    Abstract:
    Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Mechanical Engineering presented on May 2. 2002. Title: Large-Strain

  • Thermal characterization technique for thin dielectric films

    Creator:
    Indermuehle, Scott W.
    Abstract:
    A phase sensitive measurement technique that permits the simultaneous determination of two independent thermal properties of thin dielectric films is presented. Applying the technique results in a film's thermal diffusivity and effusivity, from which the thermal conductivity and specific heat can be calculated. The technique involves measuring a specimen's front...
    Resource Type:
    Masters Thesis
    Full Text:
    Mechanical Engineering presented on April 14, 1998. Title: Thermal Characterization Technique for Thin

  • Experimental Investigation of Near-Critical Carbon Dioxide in Microchannels for High Flux Cooling Applications

    Creator:
    Travers, Kristen
    Abstract:
    With the continued decrease in size and subsequent increase in power of computer processors, thermal management in electronics is becoming more important than ever before. The chip heat densities are reaching new peaks (> 100 W cm-2) that current cooling methods are not able to keep up with. However, some...
    Resource Type:
    Honors College Thesis
    Full Text:
    Thermal management of electronics is a growing engineering challenge as central processing units (CPU

  • Thermal contact resistances in a thermal conductivity test system

    Creator:
    Schneider, Donald A.
    Abstract:
    The thermal contact conductance (TCC) between two machined pieces of stainless steel was studied. A guarded hot plate thermal conductivity test fixture was designed and built for the experiment. Factors investigated included the contact pressure, surface roughness, interface material and average test temperature. The contact pressure at the interface ranged...
    Resource Type:
    Masters Thesis
    Full Text:
    of Master of Science in Mechanical Engineering presented on August 18, 1998. Title: Thermal Contact

  • Temperature measurement, electrical characteristics, and lorentz mixing of alkali seeded flames

    Creator:
    Pattee, Heidi Ann
    Abstract:
    When trace quantities of an alkali element are added to a flame, its optical and electrical properties change significantly. Addition of alkali seed to both premixed and diffusion flames has been used in the development of two new techniques, one for flame temperature measurement and the other for enhanced mixing....
    Resource Type:
    Dissertation
    Full Text:
    Doctor of Philosophy in Mechanical Engineering presented on January 23, 1992 . Title: Temperature

  • Thermographic Testing Applied to Fiber Reinforced Polymers

    Creator:
    Jolibois, Michael
    Abstract:
    Non-destructive testing is a methodology to inspect production and operational parts for potential flaws, defects, or damages. The present work is based on pulsed wave thermography, a thermal imaging method based on heat conduction to identify surface and subsurface defects potentially present in a component. Pulsed wave thermography applies a...
    Resource Type:
    Honors College Thesis
    Full Text:
    in Mechanical Engineering presented on March8, 2021. Title: Thermographic Testing applied to

  • Transient fuel pin temperature calculations using describing functions

    Creator:
    Guidotti, Timothy E.
    Abstract:
    An important element in rector safety and fuel performance assessments is the efficient calculation of the time dependent temperature profiles within reactor fuel pins. Because the fuel pins have temperature dependent thermal properties, the governing partial differential equations are nonlinear. Traditionally, finite difference or finite element methods have been used...
    Resource Type:
    Masters Thesis
    Full Text:
    in Mechanical Engineering presented on April 25, 1980 Title: Transient Fuel Pin Temperature

  • Modeling the thermal inkjet firing process

    Creator:
    Davis, Colin C.
    Abstract:
    A numerical model has been developed to simulate the firing of an inkjet printhead. The model evaluates the heat generation and diffusion within the thin film structure, the phase change and vapor bubble growth in the ink, and the subsequent flow of ink from the orifice. The heat transfer is...
    Resource Type:
    Masters Thesis
    Full Text:
    the heat flux applied to the ink and decreases efficiency. This displaced thermal energy is also the

  • Submerged jet impingement boiling thermal management

    Creator:
    Cardenas, Ruander
    Abstract:
    Technologies such as avionics and power electronics are driving the demand for thermal management schemes towards high heat fluxes and low surface temperatures. Typically, these applications require the dissipation of heat fluxes in the rage of 100-1000 W/cm² while maintaining surface temperatures lower than about 85 °C. Phase-change heat transfer...
    Resource Type:
    Dissertation
    Full Text:
    Engineering presented on September 28, 2011. Title: Submerged Jet Impingement Boiling Thermal Management