Global ETD Search
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Showing 1 to 10 of 10 for “"Equivalent linearization"”.
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Modeling of nonstationary earthquake ground motion and biaxial and torsional response of inelastic structures
… ground excitations are investigated via an equivalent linearization method and Monte Carlo simulations. The results show that (1) the equivalent linearization method predicts the response statistics quite well except for r.m.s. displacement, which can be improved by the proposed …
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Random Vibration Analysis of Higher-Order Nonlinear Beams and Composite Plates with Applications of ARMA Models
… of displacement response. A new linearly coupled equivalent linearization method is proposed and compared with the widely used traditional equivalent linearization method. The new method is proven to yield closer predictions to the numerical simulation results of the nonlinear beam vibration. A …
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A técnica da linearização equivalente no cálculo da resposta permanente de plataformas marítimas fixas
The purpose of this work is to present the equivalent linearization technique as well as to analyse such approximation in order to obtain the steady state response of fixed offshore platforms under cyclic loads. The linearization is applied to local non linearity arising from hysteretic soil …
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Stochastic finite element analyses of uncertain nonlinear plane trusses under random excitations
… equations of motion is obtained. A stochastic equivalent linearization method, in conjunction with a perturbation method, is then developed to solve for the total response statistics. A second order asymptotic method is proposed to evaluate the overall structural reliability.
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Nonlinear Analysis of Composite Beams under Random Excitations
… numerical analysis. Second, the method of equivalent linearization is used. The thesis finds the results from the two approaches to be in a close agreement, although some discrepancies at high loads could be found. However, the most important achievement of the thesis is undoubtedly that …
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Response of nonlinear structures to deterministic and random excitations
… closure method, a generalized method of equivalent linearization, and a reduced non-Gaussian closure scheme. Primary resonances of single- and two-degree-of-freedom systems in the presence of different internal (autoparametric) resonances are investigated. We propose these methods to …
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Stochastic and seismic design response of linear and nonlinear structures
… modes. For nonlinear structures, the stochastic equivalent linearization technique is employed to develop response spectrum approaches for hysteretic shear buildings and for two dimensional frames with plastic hinges. For this purpose, a generalized modal analysis technique is successfully …
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Response of a pendulum spar to 2-dimensional random waves and a uniform current
… solved, assuming constant force coefficients, by linearization for use with a Gaussian random sea. The method of equivalent linearization is extended to include mean flow effects and a spatially distributed process. Some numerical experiments are then used to test the performance of the …
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Modelling Controlled Arrays of Wave Energy Converters
… of the system. A new application of an energy equivalent linearization procedure is developed to model viscous forces for a heaving cylinder. Three control methods are subsequently applied to arrays of two and three WECs in various sea states and the resulting power output of the array is …