Browsing by Author "Alsaffar Y."

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    • Band Gap Characteristics of Nonrotating Passive Periodic Drill String 

      Alsaffar Y.; Sassi S.; Baz A. ( American Society of Mechanical Engineers (ASME) , 2018 , Article)
      A new class of drill strings is investigated whereby strategically designed and placed periodic inserts are utilized to filter out the vibration transmission along the drill strings. Such mechanical filtering capabilities ...

    • Band gap characteristics of periodic gyroscopic systems 

      Alsaffar Y.; Sassi S.; Baz A. ( Academic Press , 2018 , Article)
      The stop and pass bands (i.e. the band gaps) characteristics are determined for gyroscopic systems by developing an approach which is compatible with such class of systems which is based on the concept of Bloch wave ...