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structural free vibration
相关语句
  结构自振
     (2) Compare the differences of structural free vibration characters based on the model analysis with the two models. And thus support the further seismic resistant analysis.
     (2) 对两种结构的结构模型进行模态分析,比较结构自振特性的变化,为抗震的进一步分析打下基础;
短句来源
     Structural free vibration characterization and seismic response are calculated by means of tube-beam mathematical model of finite element method.
     采用管-梁线性有限元数学模型计算了结构自振特性和地震响应。
短句来源
     Structural free vibration characterization and seismic response were calculated by means of beam-plate linear mathematical model of finite element method.
     采用梁、板线性有限元数学模型计算了结构自振特性和地震响应。
短句来源
     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。
短句来源
     The results of a 6-story flat plate-special-shaped column structures was calculated by the software packages—ETABS and SATWE,the different structural characteristic values such as structural free vibration periods,structural displacements and distribution of axial forces and shear were compared. Behaviors of flat plate-special-shaped column structures with edge beam were discussed,and some reasonable suggests were put forward for use in engineering practice.
     以某六层平板—异形柱框架结构为例,采用ETABS,SATWE程序,对比分析了平板—异形柱结构设置不同边梁截面尺寸的结构自振周期、侧向位移及楼层轴力和剪力分布,探讨了带边梁平板—异形柱结构的受力性能,并提出合理化建议以指导工程实践。
短句来源
  “structural free vibration”译为未确定词的双语例句
     The active control of structural free vibration using fuzzy associative memory networks controller is studied in this paper.
     本文利用模糊联想记忆神经网络作为控制器,对任意初始状态的结构自由振动进行主动控制。
短句来源
     A new approach for identification of modal damping ratios from the structural free vibration responses is proposed in the paper.
     提出一种新的由结构自由振动响应识别结构阻尼比的方法。
短句来源
     On the basis of the structural dynamic analysis,determination of the dynamic analysis model,structural free vibration characteristic and main mode shape of the finished-bridge status,it was made applying the response spectrum theory to analyse and evaluate the anitiseimic performance of Songhuajiang cable-stayed bridge.
     本文在结构动力特性分析、确定动力分析模式、给出成桥状态下结构的自振特性和主要振型特点的基础上,应用反应谱理论对松花江斜拉桥的抗震性能进行了分析和评价。
短句来源
     The results of a 24-story mage-frame structure with 3 span was calculated by the universal finite element method of SAP2000,the different structural characteristic values such as structural free vibration periods,structural displacements and axial forces under the first three vibration modes were compared.
     以某三跨24层巨型框架结构为例,采用通用有限元软件SAP2000,对比分析了巨型框架结构梁柱节点为刚接、铰接、半刚性连接的自振周期、位移与前三阶振型下的连梁轴力。
短句来源
     The results of a 24-story mega-frame structure with 4 spans were calculated by the universal finite element method of MIDAS,the different structural character values such as structural free vibration periods,structural displacements and structural moments were compared,the influence of connection form of main frame beam-column on behaviors of mega-frame structure were discussed,and smoe reasonable suggestions were put forward to guide engineering practice.
     以一4跨24层巨型框架结构为例,采用通用有限元软件MIDAS,对比分析了巨型框架结构的自振周期、位移与弯矩等受力特征值; 探讨了主框架梁柱布置对巨型框架受力性能的影响,提出了合理化建议以指导工程实践。
短句来源
  相似匹配句对
     Application of element-free method to structural vibration analysis
     无单元法在结构动力分析中的应用
短句来源
     Advances in Structural Vibration Control
     结构振动控制的新进展
短句来源
     Structural properties of free vibration are computed by the directly filtering frequency method.
     用直接滤频法计算结构的自振特性;
短句来源
     Feedback Control of Structural Vibration
     结构振动的反馈控制
短句来源
     LATERAL FREE VIBRATION OF DERRICK
     井架的横向自由振动
短句来源
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In the past, a lot of researches were done on the free vibration of pier with deck supported on open pilings, subjected to the action of ship impact, yet all these studies were only referred to the free vibration field without considering the effect of damping. Practically, any vibration of the structure is bound to be influenced by damping. The structural free vibration is generally decreased under the influence of damping Therefore, any negligence of damping is unreasonable and improper.In this report,...

In the past, a lot of researches were done on the free vibration of pier with deck supported on open pilings, subjected to the action of ship impact, yet all these studies were only referred to the free vibration field without considering the effect of damping. Practically, any vibration of the structure is bound to be influenced by damping. The structural free vibration is generally decreased under the influence of damping Therefore, any negligence of damping is unreasonable and improper.In this report, we propose that, in ordinary condition, this problem may be tackled as the damping vibration with three degrees of freedom in a horizontal plane of piling deck. For the solution of the problem, a series of formulae are derived by the method of decomposing vibration mode. Some preliminary conclusions are drawn. Analysis of computated results offers substantial support to the conclusion.

国内、外对于高桩码头结构在船舶撞击下的自由振动问题,虽然已有不少研究,但是,所有理论上的研究都是限于在无阻尼振动的前提下进行的。而实际上各种结构的任何振动均不同程度地受着阻尼的影响,以致结构的自由振动一般形成衰减振动,这样忽视阻尼作用就不够合理,也与实际不符合。因此,本文特建议将此问题作为桩台平面三个自由度的阻尼振动问题来研究,并推导了振型分解法的一般性计算公式和简化公式。文末通过对算例结果的分析,得出了初步结论。

Seismic response analysis and tests for three typical types of heat exchangers, i. e. vertical straight tube one, horizontal straight tube one and vertical U-tube one have been done. Additionally, modal tests have been carried out for horizontal tube bundle and U-tube bundle. Acceleration, displacement and strain response from seismic tests for all main parts of the three types of heat exchangers were measured under both conditions with and without water. Structural free vibration characterization and...

Seismic response analysis and tests for three typical types of heat exchangers, i. e. vertical straight tube one, horizontal straight tube one and vertical U-tube one have been done. Additionally, modal tests have been carried out for horizontal tube bundle and U-tube bundle. Acceleration, displacement and strain response from seismic tests for all main parts of the three types of heat exchangers were measured under both conditions with and without water. Structural free vibration characterization and seismic response are calculated by means of tube-beam mathematical model of finite element method. Calculation results fairly meet test data. Thus effectiveness of the mathematical model is further verified.

完成了立式直管、卧式直管和立式U型管三种典型热交换器的地震响应分析和试验。对U型管管束和卧式直管管束做了模态试验。在有水和无水条件下进行了该三台热交换器的地震响应试验,测得了热交换器中各重要部件的加速度、位移和应变响应值。采用管-梁线性有限元数学模型计算了结构自振特性和地震响应。试验数据和计算结果符合得很好,从而论证了计算数学模型的有效性。

The active control of structural free vibration using fuzzy associative memory networks controller is studied in this paper. The controller needs little knowledge about the parameters of the structure in the control process. The results of simulated realistic processes indicate that this controller has a good stability and adaptability. The vibration of the controled structure attenuates rapidly. The controller is simple in construction.

本文利用模糊联想记忆神经网络作为控制器,对任意初始状态的结构自由振动进行主动控制。控制过程中无须知晓结构振动的数学模型且对过程参数不敏感。数值仿真的结果表明,该控制器具有较强的适应能力和良好的稳定性,结构受控后振动衰减迅速,且控制器结构简单。

 
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