NDLI: Probability density evolution method for vibration analysis of wind-excited tall buildings

Content Provider	IEEE Xplore Digital Library
Author	Zhangjun Liu Yaolong Lei
Copyright Year	2010
Description	Author affiliation: College of Civil & Hydroelectric Engineering, China Three Gorges University, Yichang, China (Zhangjun Liu; Yaolong Lei)
Abstract	this paper proposed a new procedure for simulation of random wind velocity field with only a few random variables. The procedure starts with decomposing the random wind velocity field into a product of a stochastic process and a random field, which represent the time property and spatial correlation property of the wind velocity fluctuation respectively. Then the stochastic process for wind velocity fluctuations is represented as a finite sum of deterministic time functions with corresponding uncorrelated random coefficients by an innovative orthogonal expansion technology. Similarly, the random field is expressed as a combination form with only a few random variables by the Karhunen-Loeve decomposition. The proposed technique provides a basis to employ the probability density evolution method which was developed in the past few years to study the stochastic responses of general linear/nonlinear structural systems. In fact, using this method, the instantaneous probability density function and its evolution of arbitrary physical quantities of interest of the linear/nonlinear stochastic systems can be captured successfully and the reliability evaluation of MDOF systems could be obtained. A numerical example, which deals with a MDOF tall building subjected to wind loads, is given for the purpose of illustrating the proposed approach.
Starting Page	5592
Ending Page	5595
File Size	466011
Page Count	4
File Format	PDF
ISBN	9781424477371
e-ISBN	9781424477395
DOI	10.1109/MACE.2010.5535704
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fluctuations Vibration Buildings Stochastic processes Structural reliability Educational institutions Reliability engineering Random processes Wind loads Wind speed Stochastic systems Probability density function Probability density evolution method Random variables
Content Type	Text
Resource Type	Article

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