An output-only stochastic parametric approach for the identification of linear and nonlinear structures under random base excitations: Advances and comparisons

2014 ◽  
Vol 35 ◽  
pp. 11-21 ◽  
Author(s):  
Liborio Cavaleri ◽  
Maurizio Papia
Keyword(s):  
Nonlinear Structures ◽  
Parametric Approach ◽  
Linear And Nonlinear ◽  
Output Only

Wave propagation in linear and nonlinear structures

1998 ◽  
Vol 113 (2-4) ◽  
pp. 346-365 ◽  
Author(s):  
E. Lidorikis ◽  
K. Busch ◽  
Qiming Li ◽  
C.T. Chan ◽  
C.M. Soukoulis
Keyword(s):  
Wave Propagation ◽  
Nonlinear Structures ◽  
Linear And Nonlinear

Time-Delay Effects on Controlled Seismically Excited Linear and Nonlinear Structures

2016 ◽  
Vol 16 (07) ◽  
pp. 1550031 ◽  
Author(s):  
Helmi Temimi ◽  
Mohamed Ben-Romdhane ◽  
Sami El-Borgi ◽  
Young-Jin Cha
Keyword(s):  
Time Delay ◽  
Eigenvalue Problem ◽  
Seismic Response ◽  
Critical Time ◽  
Control Design ◽  
Nonlinear Structures ◽  
Stability Criteria ◽  
Delay Effects ◽  
Linear And Nonlinear ◽  
Simulation Results

The main purpose of this paper is to examine the influence of time delay associated with a semi-active variable viscous (SAVV) damper on the response of seismically excited linear and nonlinear structures. The maximum time delay is estimated on the basis of stability criteria, which consist of analyses of structural modal properties. Numerical computation of the critical time delay is performed by using dichotomic approach, which is based on multiple solving of the eigenvalue problem. Simulation results indicate that variable dampers can be effective in reducing the seismic response of structures, and that time-delay effects are important factors in control design of seismically excited structures. Furthermore, simulation results show degradation of performance whenever the actual delay exceeds the calculated critical time delay, which shows the accuracy and reliability of the proposed approach.

Sign in / Sign up

Export Citation Format

Share Document