Stochastic optimization of uncertain viscous dampers for energy-dissipation structures under random seismic excitations
Mechanical Systems and Signal Processing(2022)
Abstract
•An effective analysis framework is proposed for stochastic optimization of nonlinear viscous dampers for energy-dissipation structures.•Both random seismic excitations and uncertain damper parameters are considered in the stochastic optimization framework.•The repetitive nonlinear time-history response and sensitivity analyses involved in MCS are conducted using the efficient explicit time-domain method.•The present approach is applied to the stochastic optimal design of nonlinear viscous dampers installed on a suspension bridge.
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Key words
Stochastic optimization,Nonlinear viscous damper,Explicit time-domain method,Monte-Carlo simulation,Method of moving asymptotes
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