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Complex Behavior in the Dynamic Response of a Non-smoothly Forced Mechanical System: Numerical and Experimental Investigations

dc.contributor.advisor Virgin, Lawrence N
dc.contributor.author Kini, Ashwath Thukaram
dc.date.accessioned 2013-12-26T19:01:15Z
dc.date.available 2014-12-21T05:30:03Z
dc.date.issued 2013
dc.identifier.uri https://hdl.handle.net/10161/8273
dc.description.abstract <p>This thesis describes the theoretical and experimental investigations on a non-smooth impacting system consisting of a forced oscillating mass with an impacting barrier, which has the ability to impart energy into the vibrating system. The system is also forced by the means of a sinusoidal excitation using a scotch yoke mechanism. Experiments are conducted to obtain the time delay state-space, time series and Poincare sections. Bifurcation diagrams are obtained by conducting forward and reverse frequency sweep. The obtained results are compared with expected linear non-impacting behavior and interesting phenomena including hysteresis, multiple-period orbits, transient and sustained chaos are observed. Numerical simulations were conducted and correlations were obtained between the theoretical and experimental results.</p>
dc.subject Mechanical engineering
dc.subject Bifurcation diagram
dc.subject Frequency sweep
dc.subject Impact oscillator
dc.subject Nonlinear Dynamics
dc.subject Vibrations
dc.title Complex Behavior in the Dynamic Response of a Non-smoothly Forced Mechanical System: Numerical and Experimental Investigations
dc.type Master's thesis
dc.department Mechanical Engineering and Materials Science
duke.embargo.months 12


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