A frequency-domain pseudo-force method for dynamic structural analysis nonlinear systems and nonproportional damping
AUTOR(ES)
Ferreira, W.G., Claret, A.M., Venancio-Filho, F., Mansur, W.J.
FONTE
Journal of the Brazilian Society of Mechanical Sciences
DATA DE PUBLICAÇÃO
2000
RESUMO
A frequency-domain method for nonlinear analysis of structural systems with viscous, hysteretic, nonproportional and frequency-dependent damping is presented. The nonlinear effects and nonproportional damping are considered through pseudo-force terms. The modal coordinates uncoupled equations are iteratively solved. The treatment of initial conditions in the frequency domain which is necessary for the treatment of the uncoupled equations is initially adressed.
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