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contributor authorFeng, Jinwen
contributor authorLi, Qingya
contributor authorSofi, Alba
contributor authorLi, Guoyin
contributor authorWu, Di
contributor authorGao, Wei
date accessioned2019-09-18T09:05:32Z
date available2019-09-18T09:05:32Z
date copyright4/17/2019 12:00:00 AM
date issued2019
identifier issn2332-9017
identifier otherrisk_005_02_021005
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4258758
description abstractThe uncertain free vibration analysis of engineering structures with the consideration of nonstochastic spatially dependent uncertain parameters is investigated. A recently proposed concept of interval field is implemented to model the intrinsic spatial dependency of the uncertain-but-bounded system parameters. By employing the appropriate discretization scheme, evaluations of natural frequencies for engineering structures involving interval fields can be executed within the framework of the finite element method. Furthermore, a robust, yet efficient, computational strategy is proposed such that the extreme bounds of natural frequencies of the structure involving interval fields can be rigorously captured by performing two independent eigen-analyses. Within the proposed computational analysis framework, the traditional interval arithmetic is not employed so that the undesirable effect of the interval overestimation can be completely eliminated. Consequently, both sharpness and physical feasibility of the results can be guaranteed to a certain extent for any discretized interval field. The plausibility of the adopted interval field model, as well as the feasibility of the proposed computational scheme, is clearly demonstrated by investigating both academic-sized and practically motivated engineering structures.
publisherAmerican Society of Mechanical Engineers (ASME)
titleUncertain Structural Free Vibration Analysis With Non-Probabilistic Spatially Varying Parameters
typeJournal Paper
journal volume5
journal issue2
journal titleASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering
identifier doi10.1115/1.4041501
journal fristpage21005
journal lastpage021005-12
treeASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering:;2019:;volume( 005 ):;issue:002
contenttypeFulltext


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