Dynamics of beam-type periodic structures
WebOct 22, 2024 · In the current work, we elaborate upon a beam mechanics-based discrete dynamics approach for the computation of the dispersion characteristics of periodic structures. Within that scope, we compute the higher order asymptotic expansion of the forces and moments developed within beam structural elements upon dynamic loads. WebMar 4, 2024 · For the modelling of thermomechanical problems of functionally graded structures with microheterogeneity, various averaging methods were adopted, which were also applied for periodic structures, cf. [1,2].Many of these approaches lead to averaged models with so-called averaged (effective) properties of the structure (here: of the …
Dynamics of beam-type periodic structures
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WebAug 22, 2014 · We investigate the nonlinear dynamics of a periodic chain of bistable elements consisting of masses connected by elastic springs whose constraint … WebSep 1, 1970 · The free vibration of beams and plates over supports at regular intervals has been analysed using the knowledge of natural flexural waves and the associated propagation constants. It has been shown that the conditions at the extreme ends of a finite, periodic structure, permit only certain discrete values of the propagation constant.
WebDynamics of Beam-Type Periodic Structures. An analytical technique is developed for the determination of the frequency response matrix of a one-dimensional periodic structure. The detailed analysis is carried out for a periodic Bernoulli-Euler beam on many elastic … WebJan 1, 2024 · The periodic differences of the LIPSS obtained using the flat-top beam and Gaussian beam were approximately 60 and 400 nm, respectively, between the central and peripheral regions. It...
WebApr 19, 2024 · Another type of periodic structure discussed in the literature includes orthogonal spiral (OS) structures—also referred to as spiral cantilevers. An OS energy harvester was proposed by Bai et al (2014) where magnets were used to induce nonlinearities which were shown to enhance the energy harvesting performance . WebMay 10, 2024 · periodic beam has richer dispersive characteristics, some unreported before, especially including multiple band-gaps at low frequency range and transitions between different types of band gaps. Our findings are based on the interpretation of an extensive analytical and numerical study. 2. Dynamics of LR periodic beams
WebMar 31, 2024 · The macroscopic fields are achieved within the framework of Timoshenko beam theory, while the microscopic fields are obtained by the newly constructed displacement form within the framework of three-dimensional (3D) elasticity theory.
WebNov 22, 2024 · Interest in ``all-metal'' surface periodic structures to control charged particle beam dynamics and properties, and to generate coherent radiation in the THz frequency range has recently risen exponentially. While such structures have the benefits of metal, they are capable of providing similar properties to a dispersive dielectric. All … earl a braunlin fort wayne optometry officeWebJan 1, 2024 · Request PDF On Jan 1, 2024, Luiza Ragoni Maniero and others published Dynamics Analysis of Periodic Structures in Beams and Bars with Identification of … ear laceration prophylaxisWebOver the past two decades, femtosecond laser-induced periodic structures (femtosecond-LIPSs) have become ubiquitous in a variety of materials, including metals, semiconductors, dielectrics, and polymers. Femtosecond-LIPSs have become a useful laser processing method, with broad prospects in adjusting material properties such as structural color, … cssf filingWebMay 17, 2012 · Extended continuum model for dynamic analysis of beam-like truss structures with geometrical nonlinearity Aerospace Science and Technology, Vol. 103 … earlab: ear wax removal \u0026 custom ear plugsWebMar 13, 2008 · The possibility of parity-time ($\mathcal{P}\mathcal{T}$) symmetric periodic potentials is investigated within the context of optics. Beam dynamics in this new type … earla christopherWebDec 22, 2016 · The frequency response function is a quantitative measure used in structural analysis and engineering design; hence, it is targeted for accuracy. For a large structure, a high number of substructures, also called cells, must be considered, which will lead to a high amount of computational time. In this paper, the recursive method, a finite … cssf finesWebMay 22, 2012 · Multibody System Dynamics, Vol. 14, No. 3-4 Direct application of the transfer matrix method to solve nonlinear autonomous boundary value problems with multiple branches Computers & Structures, Vol. 49, No. 3 earl abels at the pearl