Experiments on a non-smoothly-forced oscillator

TitleExperiments on a non-smoothly-forced oscillator
Publication TypeJournal Article
Year of Publication2015
AuthorsLN Virgin, C George, and A Kini
JournalPhysica D: Nonlinear Phenomena
Start Page1
Pagination1 - 10
Date Published12/2015

© 2015 Elsevier B.V. All rights reserved. This paper describes some typical behavior encountered in the response of a harmonically-excited mechanical system in which a severe nonlinearity occurs due to an impact. Although such systems have received considerable recent attention (most of it from a theoretical viewpoint), the system scrutinized in this paper also involves a discrete input of energy at the impact condition. That is, it is kicked when contact is made. One of the motivations for this work is related to a classic pinball machine in which a ball striking a bumper experiences a sudden impulse, introducing additional unpredictability to the motion of the ball. A one-dimensional analog of a pinball machine was the subject of a detailed mathematical study in Pring and Budd (2011), and the current paper details behavior obtained from a mechanical experiment and describes dynamics not observed in a conventional (passive) impact oscillator.

Short TitlePhysica D: Nonlinear Phenomena