The modeling and identification of nonlinear system is a problem widely encountered in the area of structure dynamical analysis. Based on the the applied excitations and the corresponding response time series under incomplete excitations, a power series polynomial model was utilized to represent the nonlinear restoring force (NRF) of the system in this paper, and each coefficient of the polynom...

The wave propagation and vibration transmission in metamaterial-based elastic rods with periodically attached multi-degree-of-freedom (MDOF) dynamic anti-resonant isolator (DAVI) resonators are investigated. A methodology based on a combination of the transfer matrix (TM) method Bloch theorem is developed, yielding an explicit formulation for complex band structure calculation. bandgap behavior...

In the present paper, active control system is used in different heights of the building and the most effective part was studied where the active control system is applied. The mathematical model of the building is established in MATLAB and in order to active control the system FLC method was used. Three different locations of the building are chosen to apply active control system, namely at th...

The Hilbert transform is one of the most successful approaches to tracking the varying nature of vibration of a large class of nonlinear systems, thanks to the extraction of backbone curves from experimental data. Because signals with multiple frequency components do not admit a well-behaved Hilbert transform, this transform is inherently limited to the analysis of single-degree-of-freedom syst...