定常不規則外力を受ける構造物の応答過程のシミュレ-ション

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/4239
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Title
定常不規則外力を受ける構造物の応答過程のシミュレ-ション
Title Alternative
Simulation of Structural Response Under Stationarily Random Excitation
Author
氏名 中山 隆弘
ヨミ ナカヤマ タカヒロ
別名 Nakayama Takahiro
氏名 森木 要二
ヨミ モリキ ヨウジ
別名 Moriki Yoji
Abstract

The accuracy of the statistical properties of the simulated response processes of structures subjected to the stationarily random excitations is investigated by comparison with theoretical values. Using a trigonometric siries with the upper cutoff frequency ωu, each response of one-degree-of-freedom linear systems having various damping factors ζ is simulated for different values of ωu. It is shown that in respect of the mean values, the r. m. s. values, the normality and the spectral density functions of the simulated response processes, the accuracy is agreeabel when using ωu=1.6 ω0, 1.9 ω0 and 2.1 ω0; for ζ=0.05, ζ=0.10 and ζ=0.15, respectively, for simulation, in which ω0 is the natural circular frequency. Furthermore, the precision of a parameter q, which is importantly related to average barrier crossing rates and clump sizes, is discussed as a problem of structural reliability.

Journal Title
広島工業大学研究紀要
Volume
14
Spage
161
Epage
169
Published Date
1980
Publisher
広島工業大学
ISSN
03851672
NCID
AN0021271X
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima