Titlebook: Design Optimisation and Validation of Phononic Crystal Plates for Manipulation of Elastodynamic Guid; Saeid Hedayatrasa Book 2018 Springer

石墨

Background and Research Scope, introduced and the role of topology optimisation for enhancing the bandgap efficiency of PhCrs is discussed. Application of PhPs in manipulation of guided waves in thin-walled structures for design of low loss vibroacoustic devices and structural health monitoring is explained. Finally, the researc

Kernel

Optimisation Framework and Fundamental Formulation,d. The advantages of GA for optimisation of PhCrs and in particular for proposed research problem are argued. Then the topology mapping and definition of binary design variables for desired 1D and 2D PhPs are presented. Finally, the FEM formulation and relevant periodic boundary conditions for modal

Promotion

Optimisation of Bi-material Layered 1D Phononic Crystal Plates (PhPs),ves at prescribed filling fraction of stiff scattering inclusion. Moreover the bandgap efficiency and multiscale functionality of gradient PhP structures comprising of unit-cells with various filling fractions and optimised topologies are investigated. Specialised FEM model is developed for this pur

ironic

arthroscopy

vector

Optimisation of Porous 2D PhPs for Deformation-Induced Tunability,ng their function or with switchable bandgap properties. In this chapter, novel porous PhP topologies with optimised deformation induced bandgap tunability performance are introduced through a multi-objective optimisation strategy. Maximum relative bandgap width of guided waves in undeformed state a

alliance

Experimental Validation of Optimised Porous 2D PhPs,ng an aluminium plate and laser cutting a PMMA plate. The performance of PhP samples in attenuation and self-collimation and focusing of guideds waves is observed and calculated dispersion properties are confirmed.

狗舍

造反,叛亂

Optimisation Framework and Fundamental Formulation,d. The advantages of GA for optimisation of PhCrs and in particular for proposed research problem are argued. Then the topology mapping and definition of binary design variables for desired 1D and 2D PhPs are presented. Finally, the FEM formulation and relevant periodic boundary conditions for modal band analysis of the PhP unit-cell are discussed.

GRIPE

Book 2018tive 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