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相似分析    
相关语句
  similarity analysis
    REASONABLE SELECTION OF PARAMETERS OF SOIL-MACHINE SYSTEMS IN SIMILARITY ANALYSIS
    相似分析中土壤-机器系统参数的合理选择
短句来源
  similar analysis
    By the model test,the paper discussed the similar analysis,construction technology and key structure of cabled bridge for reference.
    对大型斜拉桥铝合金模型的相似分析、制作工艺及模型的关键结构构造进行了详细阐述; 为PC矮塔斜拉桥受力性能的研究提供了可靠的试验资料。
短句来源
  similarity analysis
    REASONABLE SELECTION OF PARAMETERS OF SOIL-MACHINE SYSTEMS IN SIMILARITY ANALYSIS
    相似分析中土壤-机器系统参数的合理选择
短句来源
  similar analysis
    By the model test,the paper discussed the similar analysis,construction technology and key structure of cabled bridge for reference.
    对大型斜拉桥铝合金模型的相似分析、制作工艺及模型的关键结构构造进行了详细阐述; 为PC矮塔斜拉桥受力性能的研究提供了可靠的试验资料。
短句来源
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  similarity analysis
This note shows that for a BVP of Poisson's equation withQm(u, v) as its source function, a direct evaluation of some integrals yields the same exact results as obtained by similarity analysis.
      
Based on a similarity analysis and the experimental data, an empirical scaling formula was proposed so that the tangential component of the turbulence kinetic energy was dependent only on the parameter of the contraction ratio.
      
By similarity analysis, we also show that the debinding rate and flow field are similar at various temperatures for the same compact-wick combination.
      
A similarity analysis was performed using regional records of Copepoda and including two taxa, the orders Calanoida and Cyclopoida.
      
Both nucleotide and amino acid sequences similarity analysis revealed that cyt1A97 presents one amino acid different from the native cyt1Aa gene.
      
更多          
  similar analysis
Self-similar analysis of turbulent hydrodynamic and temperature boundary layers
      
A similar analysis was performed for mean particle radii r0 and optical thicknesses τ0 of the dust layer estimated from polarization observations for periods of high atmospheric transparency.
      
To avoid the effect of amplification in these thermal methanol lines, a similar analysis was performed for 80 sources having both maser emission at 6.7 GHz and thermal CS emission.
      
A similar analysis for the lower pressures has revealed that losses both of metastable O2(a1δg) and O2(b1σg+) molecules, and of O(3P) atoms on the surface of the discharge tube, are determined by the density of each of the components.
      
A similar analysis of squeal vocalizations, which are only produced by juveniles, found even greater levels of geographic variation.
      
更多          
  similarity analysis
This note shows that for a BVP of Poisson's equation withQm(u, v) as its source function, a direct evaluation of some integrals yields the same exact results as obtained by similarity analysis.
      
Based on a similarity analysis and the experimental data, an empirical scaling formula was proposed so that the tangential component of the turbulence kinetic energy was dependent only on the parameter of the contraction ratio.
      
By similarity analysis, we also show that the debinding rate and flow field are similar at various temperatures for the same compact-wick combination.
      
A similarity analysis was performed using regional records of Copepoda and including two taxa, the orders Calanoida and Cyclopoida.
      
Both nucleotide and amino acid sequences similarity analysis revealed that cyt1A97 presents one amino acid different from the native cyt1Aa gene.
      
更多          
  similar analysis
Self-similar analysis of turbulent hydrodynamic and temperature boundary layers
      
A similar analysis was performed for mean particle radii r0 and optical thicknesses τ0 of the dust layer estimated from polarization observations for periods of high atmospheric transparency.
      
To avoid the effect of amplification in these thermal methanol lines, a similar analysis was performed for 80 sources having both maser emission at 6.7 GHz and thermal CS emission.
      
A similar analysis for the lower pressures has revealed that losses both of metastable O2(a1δg) and O2(b1σg+) molecules, and of O(3P) atoms on the surface of the discharge tube, are determined by the density of each of the components.
      
A similar analysis of squeal vocalizations, which are only produced by juveniles, found even greater levels of geographic variation.
      
更多          


The paper derives the similarity criteria of strain abnormal model for a large-scale truss structure model with varying cross-section of a steel bridge approach, which are verified by experimentation and calculation.

通过对大型变断面桁架结构模型的相似分析,导出应变畸变模型的相似准则;并进行了计算论证.

The structural design scheme of a large span variable cross section steel bridge approach isanalyzed and discussed. At the mean time, the similarity analysis of structure model is completed in order to carry out a large scale model test. The similarity criterion of strain distortion model for steel bridge approach is established. The statical and dynamical tests in multiple working conditions are carried out for 1 : 5 large scale model. The test results are analyzed and compared with numerical calculation. Finally,...

The structural design scheme of a large span variable cross section steel bridge approach isanalyzed and discussed. At the mean time, the similarity analysis of structure model is completed in order to carry out a large scale model test. The similarity criterion of strain distortion model for steel bridge approach is established. The statical and dynamical tests in multiple working conditions are carried out for 1 : 5 large scale model. The test results are analyzed and compared with numerical calculation. Finally, some good results are obtained.

对一大跨度变断面桁梁结构钢引桥作了结构设计方案分析和讨论;同时为进行大比尺模型试验完成了结构模型的相似分析,建立了钢引桥的应变畸变模型的相似准则,对1:5大比尺模型所进行的多工况静力及动力测试,以及与数值计算值进行了分析比较,最后得出若干结论.

A structural novelty diagnosis approach based on statistical pattern recognition techniques is developed for bridge health monitoring.The measured ambient vibration responses of a bridge are employed and the recorded data are divided into many segments to get sets of data samples.For each data sample coming from the structure in unknown condition,a normalization procedure based on hierarchical sequence matching approach is performed to find,in the sample set of the healthy structure,a reference data sample recorded...

A structural novelty diagnosis approach based on statistical pattern recognition techniques is developed for bridge health monitoring.The measured ambient vibration responses of a bridge are employed and the recorded data are divided into many segments to get sets of data samples.For each data sample coming from the structure in unknown condition,a normalization procedure based on hierarchical sequence matching approach is performed to find,in the sample set of the healthy structure,a reference data sample recorded under a similar environmental and operational condition.Then,for each pair of data samples,a damage feature is extracted through autoregressive with exogenous input prediction modeling.Finally,the damage features derived from all the data samples are analyzed statistically and a probability-based measure,damage possibility,is thereby obtained for structural novelty detection and damage localization.The proposed approach is promising for online structural health monitoring and,as illustrated in the case study on a 3-span-girder numerical model,is more sensitive to early-stage damages than modal property based methods.

针对桥梁健康监测的应用 ,提出了一种基于统计模式识别技术的结构异常诊断方法 .由正常结构实时监测动态响应形成状态判断的数据基 ,通过序列相似分析将未知状态结构的响应信号与正常结构数据基进行环境/运营条件归一化 ;然后根据动态参数模型残差分析提取结构损伤特征 ,进而通过统计分析进行结构异常诊断和损伤定位 .与基于模态频率变化的方法相比 ,该方法具有更高的损伤识别能力 ,并能较好地克服实测数据离散性和环境与运营条件影响带来的困难 .通过三跨连续梁的数值试验验证了该方法的有效性

 
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