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Pounding of buildings modelled by an impact oscillator
Author(s) -
Davis R. O.
Publication year - 1992
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290210305
Subject(s) - spectral line , harmonic oscillator , chaotic , stiffness , physics , natural frequency , range (aeronautics) , structural engineering , engineering , vibration , acoustics , quantum mechanics , computer science , aerospace engineering , artificial intelligence
Pounding of adjacent buildings is modelled by an impact oscillator subjected to harmonic excitation. Non‐linear impact stiffness is represented by a Hertz‐type relationship. Spectra of impact velocity are presented for a range of model parameters. These spectra are characterized by a strong peak near a period equal to one half the natural period of a similar non‐impacting oscillator. Bands of response are found in which periodic multiple impacts and non‐periodic or chaotic impacts occur.