A new type of time series model, the AVD model which accommodates the Acceleration, Velocity and Displacement simultaneously, has been used to estimate the characteristics of nonlinear single and multi-degree of freedom systems with dry Coulomb friction, viscous damping and nonlinear stiffness. Numerical results via simulation are compared with those from a Fourier transform method, which suggests that the AVD model is a powerful technique for nonlinear system parameter identification.

Issue Section:
Research Papers
Topics:
Dry friction, Stiffness, Time series, Coulombs, Damping, Fourier transforms, Friction, Nonlinear systems, Simulation
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