By solving equation group the basic nature vibration period and vibration modes of this type equipment are obtained .

通过对方程组的求解，得到这种类型设备的自 振 周期及振型。

Because of the complexity of frame-infill interaction the influence of infilled wall on structure is often neglected or just considers its influence on the structural natural vibration period in the structural design and analysis .

在结构设计和分析当中，由于填充墙与框架主体结构间共同工作机制复杂，常常忽略填充墙对结构的影响或仅仅考虑填充 墙对结构 周期的影响。

The influences of structure natural vibration period and peak sidesway on horizontal outrigger and different rigidity belts were discussed .

探讨了水平伸臂以及不同刚度的环带对结构自 振 周期和结构顶点侧移的影响；

The anti-seismic analysis is carried out for dry-type air-core reactor . The calculation basis and mathematic model are given . The basic natural vibration period seismic stress and the calculating formula for safety-check are all presented here .

对干式空心电抗器总称结构进行了地震分析，提出了计算依据与数学模型，给出了基本自 振 周期、地震力以及安全校核的实用计算公式。

The influence of gravity on the vibration period of inertia balance are analyzed .

分析了重力对惯性秤的影响、重力与惯性秤的 振动 周期的关系。

The results show that natural vibration period of the isolated structure increases obviously and seismic action decreases .

结果表明，结构的自 振 周期增加明显，地震作用得到较大衰减。

Relationship between vibration period of the system and control variables is discussed when chaos is controlled into single periodic state .

讨论了混沌被控制到单周期态时系统输出的 振荡 周期的变化规律与控制量的关系。

The analytical results show that : the vibration period of the truss is short and the stiffness is between the equivalent frame and shear wall structure stiffness .

分析结果表明，该结构体系的 振动 周期较小，结构整体刚度较大，介于相同条件的框架和剪力墙之间。

Comparison analysis of natural vibration period of frame-shear wall structure under different constraint conditions

地下室不同约束条件下框-剪结构自 振 周期对比分析

The results of the tower given in this paper indicate that ( 1 ) the cable obviously increases the tower 's fundamental period in longitudinal direction while the effect on the lateral vibration period can be neglected ;

文中给出的输电塔的计算结果表明：（1）导线明显增加了输电塔的纵向基本 自 振周期，而对侧向 振动 周期几乎没有影响；

The input energy of system is affected greatly by the mass ratio of isolation layer to superstructure and the natural vibration period of superstructure .

隔震层与上部结构的质量比和上部结构的自 振 周期对系统输入能量的影响都比较大。

Testing and Verifying the Experiment on the Vibration Period of Two - Spring Vibrator

双弹簧振子 振动 周期的实验验证

When the inertial balance is put into horizon verticality and incline the influences of gravity on vibration period of inertial balance are discussed .

分析了惯性秤水平、垂直和倾斜放置时，重力对惯性秤 振动 周期的影响。

The calculating results indicate supporting conditions have greater influence on free vibration period than connection modes of duck systems .

指出斜拉 桥 振 型会 出现明显的分组现象，桥面系连接方式影响程度较小， 弹性支承的影响程度较大。

Dynamic characteristic and response ( the vibration period frequency modal ) of the single silo and group silos in empty and full conditions are analyzed . And analysis to movement patterns of silo structures at low frequency and high frequency is also performed . 3 .

分析单仓和群仓结构分别在空仓和满仓状态下的动力特性（ 自 振 周期、频率、振型），并分析筒仓结构在低频率和高频率时的运动形态。

The vibration period increases with the increase of liquid density in the vibration tube .

随着振动管内流体密度的增加，其 振动管 自由 衰减 的 振动 周期也增加。

Assuming the hybrid structure to be a continuous elastic structure with infinite degree of freedom a free vibration equation has been built and the formula for calculating free vibration period has been deduced .

再将混合结构视为连续弹性无限自由度结构，建立自由振动微分方程，推导了混合结构的自 振 周期公式。

It is shown that considering the structural stiffness degradation structural free vibration period increases structural stiffness decreases lateral displacement increases and the rate of total frames bearing total shear increases and it is necessary that the shear frames should be adjusted .

研究结果表明：考虑结构刚度退化后，结构自 振 周期增加，刚度减少，侧移增大，总框架承担总剪力的比例增加，《规范》对框架承担剪力的调整是有必要的。

According to the national code the horizontal earthquake force is calculated by the acceleration response spectrum . The force is closely related to the base vibration period of building structure .

我国现行建筑抗震设计规范中，通常采用加速度反应谱来计算建筑结构的水平地震作用，结构地震反应的大小主要通过与结构 自 振 周期相关的地震影响系数来体现。

A method for calculating natural vibration period of framed tower and a calculative example are described in this paper . The period of an industrial framed tower had been measured in the factory .

文中提出了框架塔自 振 周期的计算方法与计算示例，并对工业用的框架塔的 自 振周期进行了实测。

The vibration behavior of direct air cooled condenser support platform structure in service is measured in site . Also the dynamic property of a model is tested and the vibration period frequency vibration shape and damping ratio are obtained .

现场实测了服役直接空冷结构体系的振动特性，并对模型结构进行动力特性测试，获得了 振动 周期、频率、振型及阻尼比等动力特性参数。

Calculation & actual measurement method on natural vibration period of tall buildings

高层建筑结构的自 振 周期的计算与实测

The natural vibration period of whole structure become longer than original frame structure and it has some functions to the earthquake .

整体结构的自 振 周期较原框架结构明显加长，对地震作用起到了一定的缓解作用。

With the superior design structural vibration period is studied for providing the theories calculation of construction engineering ;

研究其在最优设计条件下，结构 自 振 特性问题，为工程结构的 动力分析提供理论计算依据；

At present the main questions which exist in the absorber tower structure design are : ( 1 ) How to confirm the structural natural vibration period in wind load calculation .

现阶段对于吸收塔结构设计中存在的主要问题是：（1）风荷载计算中，结构基本自 振 周期如何取值；