... elastodynamics Fourier series Fourier transforms harmonics periodic structures Presented at the 2006 ASME International Mechanical Engineering Congress and Exposition (IMECE)-Symposium on Phononic Crystals, November 2006, Chicago, IL. Extensive efforts have been exerted in the investigation...

...Y. J. Wu; W. Q. Zhu Physical and engineering systems are often subjected to combined harmonic and random excitations. The random excitation is often modeled as Gaussian white noise for mathematical tractability. However, in practice, the random excitation is nonwhite. This paper investigates...

... of translation in the transverse direction with small rotation, and it is not restricted to be harmonic in time. The resulting expressions for the coupled mechanical response and the electrical outputs are then reduced for the particular case of harmonic behavior in time and closed-form exact expressions...

... equation of motion of a stay cable with arbitrary sag is formulated in terms of three-node curved finite elements. Then a frequency-domain solution method to obtain the periodically forced response is developed by applying the incremental harmonic balance (IHB) technique to the finite element model...

...Jin-Wei Liang; Brian F. Feeny This paper presents a method for estimating Coulomb and viscous friction coefficients from responses of a harmonically excited dual-damped oscillator with linear stiffness. The identification method is based on existing analytical solutions of non-sticking responses...

...Douglas E. Adams, Assistant Professor, Mem. ASME; Randall J. Allemang, Professor, Mem. ASME Forced vibration responses of nonlinear systems contain harmonics of the excitation frequency. These harmonics are either directly forced or are subharmonic, superharmonic, or combination resonances...

... values, modes of the axisymmetric structure that are precisely harmonic become contaminated with certain additional wavenumbers. From analytical, numerical, and experimental perspectives, this paper investigates spatial modulation of the doublet modes, particularly those retaining repeated natural...