An impact oscillator with a grazing cycle


AKHMET M., Kivilcim A.

Discontinuity, Nonlinearity, and Complexity, cilt.6, sa.2, ss.105-111, 2017 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.5890/dnc.2017.06.001
  • Dergi Adı: Discontinuity, Nonlinearity, and Complexity
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.105-111
  • Anahtar Kelimeler: Asymptotic stability, Grazing periodic solution, Grazing point, Linearization at a grazing point, Variable coefficient of restitution
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

© 2017 L&H Scientific Publishing, LLC.An oscillator which impacts against a rigid barrier is taken into account. A cycle with zero impact velocity is discussed. The main result of this article concerns stability of the grazing cycle. A significant attention to a model with the variable coefficient of restitution depending on velocity is paid. The mechanical reasons for that are provided as well as new theo- retical advantages have been discovered for the investigation of dynamics near a grazing cycle. The W-map which reduces the system with variable moments of impacts to that with fixed moments and simplifies the analy- sis, is defined. A new type of linearization system with two compounds is applied to investigate the stability of the grazing cycle whose existence is easily examined. A new approach to suppress a singularity, caused by the tangency, in linearization has been developed. Simulations are provided to visualize the stability of the grazing cycle.