【摘 要】
：
To reveal the energy transmission through a hybrid phononic crystal structure,power flow analysis is carried out in this paper.Hysteretic damping having signifi
【机 构】
：
The Second Ship-Designing Institute of Wuhan, Wuhan 430064, China
论文部分内容阅读
To reveal the energy transmission through a hybrid phononic crystal structure,power flow analysis is carried out in this paper.Hysteretic damping having significant relationship with power flow is added and corresponding theoretical formulas of the dispersion relation are derived.Besides,the power flow in the hybrid structure is calculated by using the finite element method.The results show that as the damping increases,the boundaries of the band gaps become smoother and dimmer,i.e.,broader width.With the increase of damping,the power flow is lowered at the resonance frequencies,while slightly increases near the resonance frequencies.The power flow maps manifest energy distribution in the hybrid structure within and out of the band gaps,which can be exploited in the optimization of the structure design.
其他文献
科技的进步促进音乐艺术的发展,电脑、投影仪等“数字化”教学手段越来越多地运用于音乐课堂教学.该文分别从前提条件、课件制作、课堂教学、延续课堂等视角,介绍在教学实践
本研究以厚皮甜瓜(Cucumis melo L.)为试材,蛋氨酸硒为硒源,通过土壤增施和叶面喷施蛋氨酸硒两种方式,探讨了外源增施有机硒对厚皮甜瓜生长与生理特性的调控作用,以及硒在厚
Nanostructuring, structure distortion, and/or disorder are the main manipulation techniques to reduce the lattice thermal conductivity and improve the figure of
A nonlinear Schr?dinger equation in one-dimensional bead chain is first obtained and an envelope solitary wave of the system is verified numerically in this sys
“语文,语言是基础,文学是根本.文学总是承载着人类的思想情感、意识和心灵,是人类文明的载体.”提高学生的品德修养和审美情趣,逐渐形成良好的个性和健全的人格,让“渠清如
The absorption spectrum of carbon dioxide at 2.004 μin has been recorded at sample temperatures between 218.0 K and room temperature,by using a high-resolution
High-quality type Ⅱa large diamond crystals are synthesized with Ti/Cu as nitrogen getter doped in an FeNi-C system at temperature ranging from 1230 ℃ to 1380
长期以来,我们的音乐教学都是把识谱随课文分散教学的,要求有条件的学校在小学阶段基本完成简谱识谱任务,在初中阶段基本完成五线谱识谱任务.事实上,这个任务远没有完成,也不
A theoretical study for femtosecond laser-induced ultrafast electro-absorption of bulk solids is presented. Our nu-merical results show that, in the case of low
A compact all-fiber polarization-maintaining Er:laser using a nonlinear amplifying loop mirror is reported.Fundamental single-pulse mode-locking operation can a