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Simulation of Ergodic Multivariate Stochastic Processes
Publisher: American Society of Civil Engineers
Abstract: A simulation algorithm is proposed to generate sample functions of a stationary, multivariate stochastic process according to its prescribed cross-spectral density matrix. If the components of the vector process correspond ...
Bounds on Response Variability of Stochastic Finite Element Systems
Publisher: American Society of Civil Engineers
Abstract: A methodology is developed to evaluate the spectral‐distribution‐free upper bounds of the response variability of stochastic systems. The structural systems examined consist of linearly elastic trusses and frames subjected ...
Weighted Integral Method. I: Stochastic Stiffness Matrix
Publisher: American Society of Civil Engineers
Abstract: This work, consisting of two papers, introduces the “weighted integral method” for calculating both the response variability and the reliability of stochastic frame structures. In the first paper, an exact expression of ...
Effect of Uncertainty of Tensile Strength of Mortar Joints on the Behavior of Masonry Walls under Lateral Loads
Publisher: American Society of Civil Engineers
Abstract: Analyzing the behavior of a masonry structure is a complex issue due to the complicated nature of masonry. Moreover, random spatial variation of masonry properties due to workmanship quality makes the prediction of its ...
Auto‐Regressive Model for Nonstationary Stochastic Processes
Publisher: American Society of Civil Engineers
Abstract: An autoregressive model for univariate, one‐dimensional, nonstationary, Gaussian random processes with evolutionary power spectra is introduced. At the same time, an efficient technique for numerically generating sample ...
Bounds on Response Variability of Stochastic Systems
Publisher: American Society of Civil Engineers
Abstract: A methodology to analytically and numerically evaluate the spectral distribution‐free upper bounds of the response variability of stochastic systems is developed. The structural systems examined consist of linearly elastic, ...
Simulation of Seismic Ground Motion Using Stochastic Waves
Publisher: American Society of Civil Engineers
Abstract: A fundamental theory of evolutionary stochastic waves is developed based on Priestley's evolutionary power‐spectrum theory and a technique for digitally generating samples of such waves is introduced as a further extension ...
Weighted Integral Method. II: Response Variability and Reliability
Publisher: American Society of Civil Engineers
Abstract: After obtaining in a companion paper an exact expression of the stochastic stiffness matrix in terms of random variables called weighted integrals, the response variability and the safety index of stochastic frame structures ...
Simulation of Multi-Dimensional Gaussian Stochastic Fields by Spectral Representation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The subject of this paper is the simulation of multi-dimensional, homogeneous, Gaussian stochastic fields using the spectral representation method. Following this methodology, sample functions of ...
Simulation of Stochastic Processes by Spectral Representation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The subject of this paper is the simulation of one-dimensional, uni-variate, stationary, Gaussian stochastic processes using the spectral representation method. Following this methodology, sample ...