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Optimal instrumentation of structures on flexible base for system identification
Author(s) -
HerediaZavoni E.,
MontesIturrizaga R.,
Esteva L.
Publication year - 1999
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/(sici)1096-9845(199912)28:12<1471::aid-eqe872>3.0.co;2-m
Subject(s) - flexibility (engineering) , instrumentation (computer programming) , base (topology) , stiffness , structural engineering , engineering , accelerometer , base isolation , noise (video) , computer science , mathematics , mechanical engineering , statistics , mathematical analysis , frame (networking) , artificial intelligence , image (mathematics) , operating system
A criterion previously developed by Heredia‐Zavoni and Esteva for selecting optimal sensor locations is used to analyse the optimal instrumentation of structures on soft soils. The stochastic response of a linear structural system on a flexible base is formulated for use of the criterion. The case of MDOF shear systems on flexible base, with uncertain lateral stiffness and subjected to random earthquake ground motions, is studied. The optimal location of accelerometers, the reduction of prior uncertainty on the lateral stiffness, the effects of the base flexibility, the relative influence of translation and rocking of the base, and the influence of recording noise are assessed and discussed. Copyright © 1999 John Wiley & Sons, Ltd.