Research on vibration band gaps of one dimensional phononic crystals consisted of metal and nitrile butadiene rubber

金属/丁腈橡胶杆状结构声子晶体 振动 带隙研究

That is the dynamic optimal design which concerns comprehensively influencing factors about forced vibration unacceptable frequency band stiffness intensity etc.

即需全面考虑强迫 振动、频率 禁区、刚度、强度等的影响因素，进行符合工程实际要求的、基于有限元分析的动力优化设计，以满足现代化设计要求。

The composite materials thin plate exhibiting vibration band gap is found . But it is different from the xy mode band structure of two-dimensional phononic crystals .

发现二维声子晶体薄板存在 振动 带隙，但是与二维声子晶体xy模态的能带结构有区别。

When the elastic / acoustic wave propagates in the PCs the wave will be affected by the periodic structure and the phononic BGs produce i.e. sound and vibration in the band gaps are forbidden .

当弹性波（声波）在其中传播时，受内部周期性结构的作用，会产生 弹性波的 带 隙， 带隙 范围 内的弹性波将被禁止。

The simulation results were as follows : optimal damping vibration isolation in the single-frequency signal input low-frequency band close to the largest passive vibration damping vibration isolation effect of high-frequency band close to the smallest passive vibration damping vibration isolation effect .

仿真结果发现：优化阻尼隔振在单频信号输入时，在低频段接近最大被动阻尼 隔 振效果，在高频 段接近最小被动阻尼隔振效果。

The system is of wide detecting vibration frequency band ( 0-20kHz ) and an advanced power against interference .

该仪器系统 测振频率范围宽（ 0&20kHz），抗干扰能力强。

Phononic crystals Vibration band gap Crystal lattice Symmetry Primitive cell ;

声子晶体； 振动 带隙；晶格；对称性；原胞；

Coupled flexural-torsional vibration band gap in periodic Timoshenko beam including warping effect Reciprocate by offering helpful hints .

考虑翘曲的周期铁摩辛柯梁的弯扭耦合 振动 带隙天秤座：本周天秤要报答别人为你提供的有用信息。

Study on the Characteristics of Horizontal Vibration of Band Saw

带锯机锯条侧向 振动特性的研究

To improve productivity and cutting accuracy of wood and to modify characteristics of band saw it is essential that we study vibration characteristics of band saw .

为了提高木材生产率和加工精度，改善带锯机的工作性能，降低生产成本，对 带锯机的 振动特性进行研究是十分必要的。

Phononic crystals have vibration band gaps which make them have numerous engineering application prospects in vibration control .

声子晶体所具有的 振动 带隙 特性使其在振动控制领域具有广阔的应用前景。

Research on torsional vibration band gaps of one dimensional phononic crystals composed of rod structures

一维杆状结构声子晶体扭转 振动 带隙研究

And the vibration band energy and deviation in current voltage and vibration are used respectively as the input of FNN to diagnosis the motor fault .

对电机的故障诊断，分别以 振动 频带能量和电压、电流、振动偏差作为神经网络的输入，对其进行故障诊断。

And gives the safety evaluation indexes of nodal diameter static frequency of first harmonic system vibration band of blades with round linking . All these have reference value for judging the high frequency vibration of blade system .

给出了整圈连接叶片一阶系统 带节径静频率的安全性评价指标，时判断叶片系统的高频 振动具有参考价值。

In solution there exist sorts of interaction between solute molecular and solvent molecular which is reflected by the spectrum like frequency shift intensity and linewidth change of a vibration band .

溶液中，溶质分子和溶剂分子之间存在着多种相互作用（范德瓦尔斯力、氢键等），这些作用反映在溶质分子光谱上，会出现分子某个 振动 峰的频移、峰强度和线宽变化的现象。

With the calculation methods of Phononic crystals and their extensions together with finite element method and experimental tests the vibration band gaps in periodic beams and plates which are applied widely in engineering are investigated deeply and systemically .

论文是以声子晶体理论和算法为基础，应用理论分析、有限元仿真和实验验证相结合的研究方法，对工程中广泛应用的梁板类周期结构的 振动 带隙特性展开系统深入的研究。

Analyses of Vibration Isolation Effect in Different Frequency Band for Steel-Spring Floating Slab Track

钢弹簧浮置板轨道 结构在不同 频段的隔 振效率

At the same time the vertical vibration of the band saw should also be considered when studying the vibration of the band saw and these issues need further study .

同时 带锯条的振动也应考虑面内的纵向 振动，这些问题亟需进一步深入研究。

Introduces the basic principles of the full vector spectrum technology and its numerical algorithm . Integrates with the vibration intensity of the band and proposes the full vector spectrum band for fault diagnosis method .

阐述了全矢谱技术的基本原理和数值计算算法，并将其与 频段 振动烈度的 计算相融合，提出了全矢频谱频段的故障诊断方法。

Research on vibration band gaps and characteristic of vibration isolation of periodic mass-spring structure

周期弹簧振子结构 振动 带隙及隔振特性研究

Under this circumstance funded by the State Key Development Program for Basic Research of China ( 973 program ) this dissertation addresses the vibration band gaps in periodic structures using the Phononic crystals theory .

本文以此为背景，在国家重大基础研究项目（973项目）的资助下，提出利用声子晶体理论对周期结构的 振动 带隙 特性进行深入研究。

This paper also gives analysis of the frequency-domain characteristics and tests of the periodical vibration data which determine the periodic vibration energy concentrated band .

进行了振动频域特性分析，检验了振动数据周期性，确定了周期 振动能量的集中 频段。

Each axis vibration is cyclostationary non-Gaussian wide band .

每个轴向上是非平稳中的一类循环平稳的、非高斯的、宽频 带的随机 振动。

In this thesis based on the research status and the basic theory of PCs the vibration band gap in PCs and its properties are studied .

在掌握声子晶体研究现状及基本理论的基础上，对一、二、三维声子晶体及梁板类结构 声子晶体的 带隙特性进行了较为深入的研究；

Development of the numerical control woodworking curve band saw Characteristics of horizontal vibration of saw in band mill takeup

数控木工曲线带锯机的研制 带锯机张紧系统锯条横向 振动特性的研究

Characteristics of horizontal vibration of saw in band mill takeup

带锯机张紧系统锯条横向 振动特性的研究

Vibration Attenuation and Band Gap Characteristics of Phononic Crystals

声子晶体 振动 带隙及 减振特性研究

The lumped-mass method was employed to calculate the vibration band gaps of one-dimensional phononic crystals consisted of granite and nitrile rubber the effects of the number of lumped-mass lattice constant volume fraction and viscoelasticity of nitrile rubber on band gaps were also investigated .

采用集中质量法计算了一维花岗岩/丁腈橡胶声子晶体的 振动 带隙，研究了集中质量数、晶格常数、组分比及丁腈橡胶的粘弹性对带隙的影响。

By analyzing the vibration band structure of infinite periodic mass-spring structure it is discovered that the structure have vibration band gaps which are similar with elastic band structure of phononic crystals and the vibration of such frequencies within band gaps can not be transmitted .

无限周期弹簧振子结构具有和声子晶体类似的 振动（弹性波） 带隙，带隙频率范围内的振动（弹性波）在该结构中无法进行传播。

Periodic structure is a new type of structure with vibration band gaps .

周期结构是具有 振动 带隙的一种新型结构。