Dynamics of a Drifting Impact Oscillator with a Conical Profile

Olusegun Ajibose*, Marian Wiercigroch, Ekaterina Pavlovskaia, Alfred Akisanya, Gyory Károyli

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new model of the progression phase of a drifting oscillator is proposed to account more accurately for the penetration of a conical impactor through elastoplastic solids under a combination of a static and a harmonic excitation. The dynamic response of the semi-infinite elasto-plastic medium subjected to repeated impacts by a rigid impactor with conical contacting surface is considered and a power law force-penetration relationship is adopted to describe the loading and unloading phases of contact. These relationships are then used to develop a physical and mathematical model of this drifting oscillator, where the time histories of the progression through the medium include both the loading and unloading phases. A limited nonlinear dynamic analysis of the system was performed and it confirms that the maximum progressive motion of the oscillator occurs when the system exhibits periodic motion.

Original languageEnglish
Title of host publicationIUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design
Subtitle of host publicationProceedings of the IUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design, held Aberdeen, UK, 27-30 July 2010
EditorsMarian Wiercigroch, Giuseppe Rega
PublisherSpringer
Pages313-321
Number of pages9
ISBN (Electronic)9789400757424
ISBN (Print)9789400757417, 9789400794511
DOIs
Publication statusPublished - 1 Jan 2013
EventIUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design, 2010 - Aberdeen, United Kingdom
Duration: 27 Jul 201030 Jul 2010

Publication series

NameIUTAM Bookseries
PublisherSpringer
Volume32
ISSN (Print)1875-3507
ISSN (Electronic)1875-3493

Conference

ConferenceIUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design, 2010
CountryUnited Kingdom
CityAberdeen
Period27/07/1030/07/10

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Keywords

  • Drifting impact oscillator
  • Drilling
  • Progression dynamics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ajibose, O., Wiercigroch, M., Pavlovskaia, E., Akisanya, A., & Károyli, G. (2013). Dynamics of a Drifting Impact Oscillator with a Conical Profile. In M. Wiercigroch, & G. Rega (Eds.), IUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design: Proceedings of the IUTAM Symposium on Nonlinear Dynamics for Advanced Technologies and Engineering Design, held Aberdeen, UK, 27-30 July 2010 (pp. 313-321). (IUTAM Bookseries; Vol. 32). Springer . https://doi.org/10.1007/978-94-007-5742-4_24