Dynamics of beam-type periodic structures
WebAbstract. Determination of the regions of dynamic instability has been an important issue for elastic structures. Under the extreme climate, the external load acting on structures is … WebAug 22, 2013 · Beam-type phononic crystals as one kind of periodic material bear frequency bands for bending waves. For the first time, this paper presents formation …
Dynamics of beam-type periodic structures
Did you know?
WebMay 17, 2012 · Reduced-order computational model in nonlinear structural dynamics for structures having numerous local elastic modes in the low-frequency range. Application to fuel assemblies ... Dynamic continuum modeling of truss-type space structures using spectral elements. ... Dynamics of bi-periodic structures. Journal of Sound and … WebMay 1, 2006 · The dynamics of wave propagation along the periodically covered sandwich beam is determined by evaluating the propagation constants of the system, which are obtained by analyzing through the transfer matrix formulation.
WebOct 22, 1980 · The natural vibration analysis of a periodic structure with repeated identical substructures may be simplified by using some symmetrical properties of the … WebDec 16, 2024 · The dynamics of stiffened quasiperiodic beams is investigated through 3-D finite element simulations, which leads to the observation of the fractal nature of the bulk spectrum and the...
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 … WebMay 17, 2012 · Extended continuum model for dynamic analysis of beam-like truss structures with geometrical nonlinearity Aerospace Science and Technology, Vol. 103 …
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
WebOct 19, 2024 · The families of periodic and quasiperiodic beams for both stiffened and sandwich-type are obtained by varying a projection parameter that governs the location … how do snowmobiles workWebSep 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. how do snowmobile engines workWebApr 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 . how do snowflakes form for kidsWebOct 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. how much shoreline does maryland haveWebMar 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 … how do snowmobile ice scratchers workWebMar 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. how do snowshoes workWebDec 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 … how much shoreline does oklahoma have