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Dynamic response analysis of linear stochastic truss structures under stationary random excitation

✍ Scribed by Wei Gao; Jianjun Chen; Mingtao Cui; Yi Cheng

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
232 KB
Volume
281
Category
Article
ISSN
0022-460X

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✦ Synopsis

This paper presents a new method for the dynamic response analysis of linear stochastic truss structures under stationary random excitation. Considering the randomness of the structural physical parameters and geometric dimensions, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation are developed by means of the random variable's functional moment method and the algebra synthesis method from the expressions of structural stationary random response of the frequency domain. The influences of the randomness of the structural physical parameters and geometric dimensions on the randomness of the mean square value of the structural displacement and stress response are inspected by the engineering examples.

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