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Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves
紀錄類型:
書目-語言資料,印刷品 : Monograph/item
正題名/作者:
Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves/ by Saeid Hedayatrasa.
作者:
Hedayatrasa, Saeid.
面頁冊數:
XX, 223 p. 138 illus., 21 illus. in color.online resource. :
Contained By:
Springer Nature eBook
標題:
Vibration. -
電子資源:
https://doi.org/10.1007/978-3-319-72959-6
ISBN:
9783319729596
Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves
Hedayatrasa, Saeid.
Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves
[electronic resource] /by Saeid Hedayatrasa. - 1st ed. 2018. - XX, 223 p. 138 illus., 21 illus. in color.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.
Background and Research Scope -- Literature Review and Research Objectives -- Optimisation Framework Formulation.- Optimisation of Bi-Material Layered 1D Phononic Crystal Plates (PhPs).-Optimisation of Porous 2D PhPs with Respect to In Stiffness.- Optimisation of Porous 2D PhPs: Topology Refinement Study and other Aspect Ratios.- Optimisation of Porous 2D PhPs for Deformation- Induced Tunability -- Experimental Validation of Optimised Porous 2D PhPs.- Conclusions and Recommendations for Future Work.
This thesis proposes novel designs of phononic crystal plates (PhPs) allowing ultra-wide controllability frequency ranges of guided waves at low frequencies, with promising structural and tunability characteristics. It reports on topology optimization of bi-material-layered (1D) PhPs allowing maximized relative bandgap width (RBW) at target filling fractions and demonstrates multiscale functionality of gradient PhPs. It also introduces a multi-objective topology optimization method for 2D porous PhPs allowing both maximized RBW and in-plane stiffness and addresses the critical role of considering stiffness in designing porous PhPs. The multi-objective topology optimization method is then expanded for designing 2D porous PhPs with deformation induced tunability. A variety of innovative designs are introduced which their maximized broadband RBW is enhanced by, is degraded by or is insensitive to external finite deformation. Not only does this book address the challenges of new topology optimization methods for computational design of phononic crystals; yet, it demonstrated the suitability and applicability of the topological designs by experimental validation. Furthermore, it offers a comprehensive review of the existing optimization-based approaches for the design of finite non-periodic acoustic metamaterial structures, acoustic metamaterial lattice structures and acoustic metamaterials under perfect periodicity. .
ISBN: 9783319729596
Standard No.: 10.1007/978-3-319-72959-6doiSubjects--Topical Terms:
595749
Vibration.
LC Class. No.: TA355
Dewey Class. No.: 620
Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guided Waves
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