Dynamic Analysis of Tall-pier Aqueduct Using ODE Solver
A new method using ordinary differential equation (ODE) solver is applied in order to ease the dynamic analysis of tall-pier aqueduct. By simplifying the boundary conditions associated with fluid-structure interaction at pier top and considering the pier as a continuous beam instead of discretized elements, this paper converts the dynamic analysis of tall-pier aqueduct into standard forms of ODE eigenproblem and general boundary value problem, which can be solved by ODE solver based on the presented ODE eigenvalue algorithm, modal superposition and New mark-/? semidiscretization method. For illustration, two numerical examples are utilized to show the feasibility of this method to obtain dynamic characteristic, elastic seismic response and nonlinear vibration isolation response of tall-pier aqueduct. The results show that compared to the finite element method, the model and method in this paper is not only reliable, but time-saving.
Tall-pier aqueduct ODE solver Eigenvalue Modal superposition Newmark-β method
Shaowei Hu Ri You Zhiguo Niu Jun Lu
Nanjing Hydraulic Research Institute, Nanjing, 210024, China Nanjing Hydraulic Research Institute, anjing, 210024, China
国际会议
黄山
英文
68-72
2010-05-28（万方平台首次上网日期，不代表论文的发表时间）