TY - GEN
T1 - Efficient optimal design-under-uncertainty of passive structural control devices
AU - De, Subhayan
AU - Wojtkiewicz, Steven F.
AU - Johnson, Erik A.
PY - 2015
Y1 - 2015
N2 - This paper proposes a computationally efficient framework for design optimization under uncertainty for structures with local nonlinearities. To reduce the high computational cost of Monte Carlo simulation of such problems, an exact model reduction to a low-order Volterra integral equation is used to accelerate each simulation, and variance-reduced sampling is used to reduce the number of simulations required for the uncertainty quantification. This optimization framework is applied to a benchmark cable-stayed bridge problem, designing one pair of passive tuned mass dampers given a pair of uncertain passive power law dampers, providing significant gains in computational efficiency, two orders of magnitude, compared to traditional approaches.
AB - This paper proposes a computationally efficient framework for design optimization under uncertainty for structures with local nonlinearities. To reduce the high computational cost of Monte Carlo simulation of such problems, an exact model reduction to a low-order Volterra integral equation is used to accelerate each simulation, and variance-reduced sampling is used to reduce the number of simulations required for the uncertainty quantification. This optimization framework is applied to a benchmark cable-stayed bridge problem, designing one pair of passive tuned mass dampers given a pair of uncertain passive power law dampers, providing significant gains in computational efficiency, two orders of magnitude, compared to traditional approaches.
UR - http://www.scopus.com/inward/record.url?scp=84978716172&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84978716172
T3 - 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2015
BT - 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2015
PB - University of British Columbia
T2 - 12th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2012
Y2 - 12 July 2015 through 15 July 2015
ER -