A new approach to the identification of distortion modes of thin-walled structures based on plate/shell theory

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dc.contributor.authorZhang, Lei
dc.contributor.authorZhu, Weidong
dc.contributor.authorJi, Aimin
dc.contributor.authorPeng, Liping
dc.date.accessioned2019-05-03T18:18:54Z
dc.date.available2019-05-03T18:18:54Z
dc.date.issued2019-04-08
dc.description2018 2nd International Conference on Building Materials and Materials Engineering (ICBMM 2018).en_US
dc.description.abstractIn this paper, a new approach to identify cross-section deformation modes is presented and utilized in the establishment of a high-order beam model for dynamic analyses of thin-walled structures. Towards this end, a systematic procedure to extract cross-section in-plane vibration shapes for a thin-walled cross-section is developed based on elastic plate/shell theory. Then the distortion shapes are separated from vibration shapes by removing the components of classic modes involved with the minimum value problem of 2-norm. Sequentially, curve fitting method is utilized to approximate the distortion shape functions along the cross-section midline. It should be noticed that these distortion modes are arranged in hierarchy consistent with the order that they are identified and the number of distortions to be identified depends on the required model precision. Based on this, Hamilton's principle is applied to formulate the dynamic governing equations of the beam by constructing its displacement field with the linear superposition of the cross-section mode shapes including distortions. Numerical examples are also presented to validate the new approach and to demonstrate its efficiency in the reproduction of three-dimensional behaviours of thin-walled structures in dynamic analyses.en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial support of National Natural Science Foundation of China (Grant No. 51805144), Natural Science Foundation of Jiangsu Province (Grant No. BK20170300), the Fundamental Research Funds for the Central Universities, and the Foundation of Changzhou Key Laboratory of Aerial Work Equipment and Intelligent Technology.en_US
dc.description.urihttps://www.matec-conferences.org/articles/matecconf/abs/2019/27/matecconf_icbmm2018_03005/matecconf_icbmm2018_03005.htmlen_US
dc.format.extent5 pagesen_US
dc.genreconference papers and proceedingsen_US
dc.identifierdoi:10.13016/m29gwh-4hbw
dc.identifier.citationLei Zhang, Weidong Zhu, Aimin Ji and Liping Peng, A new approach to the identification of distortion modes of thin-walled structures based on plate/shell theory, MATEC Web Conf. Volume 278, 2019 , https://doi.org/10.1051/matecconf/201927803005en_US
dc.identifier.urihttps://doi.org/10.1051/matecconf/201927803005
dc.identifier.urihttp://hdl.handle.net/11603/13562
dc.language.isoen_USen_US
dc.publisherEDP Sciencesen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Mechanical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectthin-walled structuresen_US
dc.subjectplate/shell theoryen_US
dc.subjectcross-section in-plane vibration shapesen_US
dc.titleA new approach to the identification of distortion modes of thin-walled structures based on plate/shell theoryen_US
dc.typeTexten_US

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