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模态损伤指标
相关语句
  modal damage index
     Modal Damage Index and Its Application in Structure Damage Assessment
     模态损伤指标及其在结构损伤评估中的应用
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  “模态损伤指标”译为未确定词的双语例句
     This text is started with urban highway bridge Damage identification on the basis of the curvature mode method,then study curvature mode damage index theoretically and go on numerical simulation analysis for a single span reinforced concrete simple bridge with ANSYS software,Point out the characteristic of curvature mode when it is applied to damage identification,and propose curvature mode ratio on this basis,through the numerical simulation we can know that it is a kind of good damage index and have very good development prospects.
     本文从基于曲率模态的城市公路桥梁损伤识别方法入手,从理论上研究了曲率模态损伤指标,并用ANSYS软件对一钢筋混凝土单跨简支梁进行了数值仿真分析,指出曲率模态在应用于损伤识别时的特性,并在此基础上提出曲率模态比值,通过数值模拟分析看到它是一种良好的损伤指标,具有很好的发展前景.
短句来源
  相似匹配句对
     Analysis of Modal Flexibility Index for Locating Damage in Cable-stayed Bridges
     斜拉桥损伤识别的模态柔度指标分析
短句来源
     Modal Damage Index and Its Application in Structure Damage Assessment
     模态损伤指标及其在结构损伤评估中的应用
短句来源
     index;
     指标;
短句来源
     The method of damage identification with modal index and the artificial neural networks is introduced in this paper .
     介绍了使用模态指标及神经网络进行结构损伤识别的方法。
短句来源
     DIRECT INDEX METHOD OF DAMAGE LOCATION DETECTION BASED ON DIFFERENCE THEORY OF STRAIN MODAL SHAPES
     基于应变模态差分原理的直接定位损伤指标
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Modal analysis technology draws more and more attention in the development of structural damage detection. In this paper, the sensitivities of several multiple damage detection methods were calculated. A cantilever beam of rectangular cross-section was studied by using modal analysis experimentally. The shift of modal frequency caused by structural damage was analyzed. The methods above mentioned were applied to the experiments and their efficiency were demonstrated through several damage simulations. Principal...

Modal analysis technology draws more and more attention in the development of structural damage detection. In this paper, the sensitivities of several multiple damage detection methods were calculated. A cantilever beam of rectangular cross-section was studied by using modal analysis experimentally. The shift of modal frequency caused by structural damage was analyzed. The methods above mentioned were applied to the experiments and their efficiency were demonstrated through several damage simulations. Principal shortcomings in these methods were also discussed. The results indicated that the strain index is more sensitive to damage than the displacement one for bending structures.

从理论上计算了几种多位置损伤检测方法对结构刚度的敏感度,选用工程上常见的矩形等截面悬臂梁,通过实验模态,对梁损伤引起的模态频率迁移进行了分析,从实验角度对这几种方法的敏感性和有效性进行了比较,并就它们在实际应用中的不足之处进行了讨论。实验结果表明,基于应变模态的损伤指标对承弯结构的损伤更敏感。

Modal pushover analysis (MPA) is an improved pushover analysis procedure based on structural dynamics theory.It not only retains the conceptual simplicity and computational effectiveness of the procedure with invariant force distribution,but also provides superior accuracy in estimating seismic damage on buildings.On the basic of MPA procedure,combined with the approach proposed by A.Ghobarah for the assessment of the damage index for multi-story buildings by using results of twice pushover analyses,a modal...

Modal pushover analysis (MPA) is an improved pushover analysis procedure based on structural dynamics theory.It not only retains the conceptual simplicity and computational effectiveness of the procedure with invariant force distribution,but also provides superior accuracy in estimating seismic damage on buildings.On the basic of MPA procedure,combined with the approach proposed by A.Ghobarah for the assessment of the damage index for multi-story buildings by using results of twice pushover analyses,a modal damage index is proposed in this paper.

在模态弹塑性分析方法的基础上 ,结合A .Ghobara提出的利用两次Pushover分析结果来计算多层框架结构刚度劣化的损伤指标 ,提出模态损伤指标及其分析方法 ,并应用于平面框架结构的损伤分析中 .通过与Pushover刚度损伤指标的比较 ,证明了此方法的有效性和优越性 .

Damage identification is one of the important tasks of comprehensive monitoring system of large-scale bridge.This text is started with urban highway bridge Damage identification on the basis of the curvature mode method,then study curvature mode damage index theoretically and go on numerical simulation analysis for a single span reinforced concrete simple bridge with ANSYS software,Point out the characteristic of curvature mode when it is applied to damage identification,and propose curvature mode ratio on this...

Damage identification is one of the important tasks of comprehensive monitoring system of large-scale bridge.This text is started with urban highway bridge Damage identification on the basis of the curvature mode method,then study curvature mode damage index theoretically and go on numerical simulation analysis for a single span reinforced concrete simple bridge with ANSYS software,Point out the characteristic of curvature mode when it is applied to damage identification,and propose curvature mode ratio on this basis,through the numerical simulation we can know that it is a kind of good damage index and have very good development prospects.

损伤识别是大型桥梁综合监测系统的重要任务之一.本文从基于曲率模态的城市公路桥梁损伤识别方法入手,从理论上研究了曲率模态损伤指标,并用ANSYS软件对一钢筋混凝土单跨简支梁进行了数值仿真分析,指出曲率模态在应用于损伤识别时的特性,并在此基础上提出曲率模态比值,通过数值模拟分析看到它是一种良好的损伤指标,具有很好的发展前景.

 
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