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Topographical Optimization Of Structures For Use In Musical Instruments And Other Applications, William Brandon Kirkland
Topographical Optimization Of Structures For Use In Musical Instruments And Other Applications, William Brandon Kirkland
All ETDs from UAB
Mallet percussion instruments such as the xylophone, marimba, and vibraphone have been produced and tuned since their inception by arduously grinding the keys to achieve harmonic ratios between their 1st, 2nd, and 3rd transverse modes. In consideration of this, it would be preferable to have defined mathematical models such that the keys of these instruments can be produced quickly and reliably. Additionally, physical modeling of these keys or beams provides a useful application of non-uniform beam vibrations as studied by Euler-Bernoulli and Timoshenko beam theories. This thesis work presents a literature review of previous studies regarding mallet percussion instrument design …
Design Of Highway Overhead Cantilever-Type Sign Support Structures For Fatigue Loads, Ian Edward Hosch
Design Of Highway Overhead Cantilever-Type Sign Support Structures For Fatigue Loads, Ian Edward Hosch
All ETDs from UAB
The 2001 edition of the American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals has been revised in its entirety through a major research project conducted under the auspices of the National Cooperative Highway Research Program (NCHRP 17-10). A major part of the revision included updated provisions and criteria for extreme wind loads and new provisions and criteria on fatigue design. These provisions differ considerably from those in previous editions of the specifications, and have remained relatively unchanged in the 2009 edition. The impact of the fatigue criteria …