Vibro-impact regimes of adamped single-mass system with two fixed stops

• 出版年: FME Transactions
• 主要な著者: Garić Ljubiša B., Nešić Nikola D.
• フォーマット: 論文
• 言語: 英語
• 出版事項: University of Belgrade - Faculty of Mechanical Engineering, Belgrade 2025-01-01
• 主題: external excitation force; stability analysis; vibro-impact modes; vibro-impact oscillator; viscous damping force
• オンライン･アクセス: https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2025/1451-20922501131G.pdf

This study examines the periodic vibro-impact (VI) behavior of an externally excited system containing mass, spring, and damper, whose rectilinear motion is bounded by two symmetrical stops. Periodic external coercive force is driving the system, with the period of the oscillator being one or proportional to the period of the external coercive force. The resulting differential equation of motion, coupled with boundary conditions, is solved analytically, and solutions are discussed. The study analyses different types of behavior and includes stability analysis. The research findings outline the determination of the conditions (areas) in which periodic VI modes exist for even and odd values of mode multiplicity. Additionally, the results made it possible to determine the frequency interval for the VI process when the distance between fixed stops is known. By investigating the dynamics of the VI system in this work, results were obtained that allow all possible types of motion to be theoretically defined, as well as results that define areas of motion stability, which allows one to find regimes that may exist in practice. The results obtained in this paper can be applied to improving existing and developing new vibro-impact tools and machines.