TY - GEN
T1 - A sparse third-order volterra model to simulate nonlinear bridge aerodynamics
AU - Wu, T.
AU - Kareem, A.
PY - 2013
Y1 - 2013
N2 - A sparse third-order Volterra model is utilized to simulate nonlinear bridge aerodynamics and attendant response under turbulent fluctuations. The Volterra model is pruned from aerodynamics point of view, which significantly reduces the computational effort in the nonlinear modeling. The first-, second- And thirdorder Volterra kernels are identified using the least-square technique with the input-output pairs obtained from the numerical simulations or wind-tunnel experiments. Both simulation studies of numerical and experimental cases show that the designed sparse third-orderVolterra model can simulate the bridge aerodynamic nonlinearity with high fidelity. Finally, the robustness of simulation is verified using an upgraded Volterra scheme.
AB - A sparse third-order Volterra model is utilized to simulate nonlinear bridge aerodynamics and attendant response under turbulent fluctuations. The Volterra model is pruned from aerodynamics point of view, which significantly reduces the computational effort in the nonlinear modeling. The first-, second- And thirdorder Volterra kernels are identified using the least-square technique with the input-output pairs obtained from the numerical simulations or wind-tunnel experiments. Both simulation studies of numerical and experimental cases show that the designed sparse third-orderVolterra model can simulate the bridge aerodynamic nonlinearity with high fidelity. Finally, the robustness of simulation is verified using an upgraded Volterra scheme.
UR - https://www.scopus.com/pages/publications/84892410814
M3 - Conference contribution
AN - SCOPUS:84892410814
SN - 9781138000865
T3 - Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
SP - 5665
EP - 5672
BT - Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
T2 - 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Y2 - 16 June 2013 through 20 June 2013
ER -