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    Oliver O'Reilly

    Oliver O'Reilly
    5131 Etcheverry Hall, Mailstop 1740
    University of California at Berkeley

    Professor of Mechanical Engineering

    1985: B.E. with first class honours in Mechanical Engineering, National University of Ireland, Galway, Ireland
    1988: M. Sc. in Theoretical and Applied Mechanics, Cornell University, Ithaca, NY
    1990: Ph. D. in Theoretical and Applied Mechanics, Cornell University, Ithaca, NY
    1986-1990: Research and Teaching Assistant, Department of Theoretical and Applied Mechanics, Cornell University, New York
    1990-1992: Postdoctoral Assistant, Institut für Mechanik, Swiss Federal Institute of Technology, Zürich, Switzerland.
    1992-1998: Assistant Professor, Department of Mechanical Engineering, University of California at Berkeley
    1998-2003: Associate Professor, Department of Mechanical Engineering, University of California at Berkeley
    Since 2003: Professor, Department of Mechanical Engineering, University of California at Berkeley
    Since 2009: Vice Chair for Graduate Study, Department of Mechanical Engineering, University of California at Berkeley
    .

    HONORS

    1995: Hellman Family Faculty Fund Award
    1997 and 1998: Pi-Tau-Sigma Excellence in Teaching Awards
    1999: University of California at Berkeley Distinguished Teaching Award
    2003: Pi-Tau-Sigma Professor of the Year Award
    2006: Graduate Women of Etcheverry Faculty Award for Excellence in Graduate Student Mentoring
    2007: Science Foundation Ireland, E.T.S. Walton Research Visitor Award in the Department of Applied Mathematics at University College Cork, Ireland.

    Professor O’Reilly’s interests span the fields of continuum mechanics and nonlinear dynamics. He has a broad range of specializations including directed (or Cosserat) theories of deformable bodies, constrained rigid body dynamics, contact mechanics, linear and nonlinear vibrations and linear and nonlinear dynamics of deformable bodies. He has applied these interests to a range of applications including MEMS resonators, brake squeal, the dynamics of toys, motorcycle navigation, axially moving media, artificial and natural satellites, spinal kinematics and vehicle collision dynamics. O’Reilly has published over 70 archival journal articles, written two books and is a co-inventor on two patents

    Publications:

    Kessler P., O'Reilly O. M.
    The ringing of Euler's disk
    2005, Vol. 1, No. 2, pp.  247-260
    Abstract
    The motion of disks spun on tables has the well-known feature that the associated acoustic signal increases in frequency as the motion tends towards its abrupt halt. Recently, a commercial toy, known as Euler’s disk, was designed to maximize the time before this abrupt ending. In this paper, we present and simulate a rigid body model for Euler’s disk. Based on the nature of the contact force between the disk and the table revealed by the simulations, we conjecture a new mechanism for the abrupt halt of the disk and the increased acoustic frequency associated with the decline of the disk.
    Keywords: rigid body, motion of disk, equations of motion, dissipation
    Citation: Kessler P., O'Reilly O. M.,  The ringing of Euler's disk, Rus. J. Nonlin. Dyn., 2005, Vol. 1, No. 2, pp.  247-260
    DOI:10.20537/nd0502007

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