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structural damage alarming
相关语句
  结构损伤预警
     Structural Damage Alarming Indices for Long-Span Bridges Based on Wavelet Packet Energy Spectrum
     基于小波包能量谱的大跨桥梁结构损伤预警指标
短句来源
     The Basic Principle and Method of Structural Damage Alarming for Long-Span Bridges
     大跨桥梁结构损伤预警的基本原理与方法
短句来源
     INVESTIGATION ON THE STRUCTURAL DAMAGE ALARMING METHOD BASED ON WAVELET PACKET ENERGY SPECTRUM
     基于小波包能量谱的结构损伤预警方法研究
短句来源
     Two structural damage alarming indices including energy ratio deviation(ERD) and energy ratio variance(ERV) were put forward based on wavelet packet energy spectrum decomposed from the structural dynamic responses.
     基于结构动力响应的小波包能量谱提出了两种结构损伤预警指标:能量比偏差和能量比方差。
短句来源
     The theoretical analysis results reveal that structural damage alarming using wavelet packet energy spectrum of the structural dynamic responses has preferable damage sensitivity and noise robusticity.
     理论分析证明,采用结构动力响应的小波包能量谱进行结构损伤预警具有较好的损伤敏感性和噪声鲁棒性。
短句来源
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  “structural damage alarming”译为未确定词的双语例句
     Numerical research on real-time structural damage alarming based on wavelet packet analysis
     基于小波包分析的结构实时损伤报警数值研究
短句来源
     Enclosing damage diagnosis, this pape studies modal experiment in ambient excitation, optimal placement of sensors and structural damage alarming using wavelet packet energy spectrum.
     本文围绕结构损伤诊断,研究基于环境激励的模态试验方法、传感器优化布置原理和小波包能量谱损伤预警方法三方面的内容。
短句来源
     Finally, the steps of the structural damage alarming using wavelet packet energy spectrum is introduced, which includes the selection of energy spectrum, the selections of number of wavelet packet decompose and selections of wavelet function, etc.
     最后介绍了小波包能量谱损伤预警方法的过程,包括特征频带的选取,小波包分解层次的选择,小波函数的选择等一系列问题。
短句来源
     The real-time structural damage alarming technology is studied based on wavelet packet analysis.
     研究了基于小波包分析的结构实时损伤报警技术 .
短句来源
     The structural damage alarming is performed by analyzing structural vibrational signals due to fine-time and frequency resolution of wavelet analysis.
     利用小波分析优良的时频局部化特性对结构振动信号进行精细分析 ,从而能实时地实现结构损伤报警 .
短句来源
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  相似匹配句对
     The Basic Principle and Method of Structural Damage Alarming for Long-Span Bridges
     大跨桥梁结构损伤预警的基本原理与方法
短句来源
     INVESTIGATION ON THE STRUCTURAL DAMAGE ALARMING METHOD BASED ON WAVELET PACKET ENERGY SPECTRUM
     基于小波包能量谱的结构损伤预警方法研究
短句来源
     The real-time structural damage alarming technology is studied based on wavelet packet analysis.
     研究了基于小波包分析的结构实时损伤报警技术 .
短句来源
     Numerical research on real-time structural damage alarming based on wavelet packet analysis
     基于小波包分析的结构实时损伤报警数值研究
短句来源
     METHODS AND ADVANCES OF STRUCTURAL DAMAGE DETECTION
     结构损伤探测的基本方法和研究进展
短句来源
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  structural damage alarming
Therefore, the proposed structural damage alarming indices ERVD under ambient vibrations are suitable for real-time damage alarming for long-span cable-stayed bridges.
      
The structural damage alarming method based on wavelet packet energy spectrum (WPES) for long-span cable-stayed bridges is presented through combination of ambient vibration test and wavelet packet analysis.
      


The real-time structural damage alarming technology is studied based on wavelet packet analysis. The structural damage alarming is performed by analyzing structural vibrational signals due to fine-time and frequency resolution of wavelet analysis. With respect to damage beams with open cracks, the energy spectrum of the wavelet packet is obtained with an environmental vibration signal by wavelet packet decomposition. The variation index and maximum index of energy spectrum based on the...

The real-time structural damage alarming technology is studied based on wavelet packet analysis. The structural damage alarming is performed by analyzing structural vibrational signals due to fine-time and frequency resolution of wavelet analysis. With respect to damage beams with open cracks, the energy spectrum of the wavelet packet is obtained with an environmental vibration signal by wavelet packet decomposition. The variation index and maximum index of energy spectrum based on the Monte-Carlo method are presented to judge the occurrence of beam cracks. Its advantage is that this new technique requires measured environmental signals without any analysis of the complete structure. The results obtained in the study show that a short crack can be detected effectively and efficiently, and numerical simulations verify the feasibility of the method.

研究了基于小波包分析的结构实时损伤报警技术 .利用小波分析优良的时频局部化特性对结构振动信号进行精细分析 ,从而能实时地实现结构损伤报警 .以简支梁裂缝为例 ,将环境振动信号采用小波包分解后得到小波包能量谱 ,采用基于Monte Carlo方法计算得到的能量谱极值指数和变异指数 2个指标作为简支梁裂缝损伤报警的判据 .该技术不需要对整体结构进行计算分析 ,只需要环境振动信号 .计算机数值模拟表明该技术能较为敏感地发现简支梁的微小损伤 ,从而证实了该技术的可行性 .

A systematic discussion is made on the theoretical basis and innate characters of the structural damage alarming based on wavelet packet energy spectrum with the multiscale decomposition theory of the dynamic structure. The state equation and observation equation under various analysis scales are derived using wavelet packet analysis together with the wavelet packet decomposition of system matrix and observation noise, which reveal that structural damage alarming using wavelet packet energy will...

A systematic discussion is made on the theoretical basis and innate characters of the structural damage alarming based on wavelet packet energy spectrum with the multiscale decomposition theory of the dynamic structure. The state equation and observation equation under various analysis scales are derived using wavelet packet analysis together with the wavelet packet decomposition of system matrix and observation noise, which reveal that structural damage alarming using wavelet packet energy will have preferable damage sensitivity and noise robusticity. The effectiveness of structural damage alarming for long-span bridges is subjected to structural damage and observation noise; structural damage alarming parameters are constructed according to the wavelet packet decomposition of noise energy.

以润扬长江公路大桥为例,系统阐述了以小波包能量谱为基础的结构损伤预警方法的理论基础和本质特征。研究了以小波包分析为基础的结构动力系统的多尺度分解原理,推导了不同分析尺度上振动结构的状态方程和观测方程,并分析了结构系统矩阵和观测噪声的小波包分解特性,从理论上证明了基于小波包能量谱的结构损伤预警的敏感性和噪声鲁棒性。指出大跨桥梁结构损伤预警的有效性须考虑结构损伤和观测噪声的共同影响,并根据噪声能量的小波包分解特性提出了大跨桥梁结构损伤预警参数的计算方法。

The damage alarming method for long-span suspension bridges is set up in this paper on the basis of the structural damage alarming theory based on wavelet packet energy spectrum. Through the Runyang Suspension Bridge, the damage alarming capacity and sensitivity of the damage alarming indices are discussed in detail. The analysis results reveal that reinforced beams' damages can be detected effectively by the damage alarming indices based on wavelet packet energy...

The damage alarming method for long-span suspension bridges is set up in this paper on the basis of the structural damage alarming theory based on wavelet packet energy spectrum. Through the Runyang Suspension Bridge, the damage alarming capacity and sensitivity of the damage alarming indices are discussed in detail. The analysis results reveal that reinforced beams' damages can be detected effectively by the damage alarming indices based on wavelet packet energy spectrum, and the three indices's ensitivities for damage are different.

本文在基于小波包能量谱的结构损伤预警理论基础上,建立了大跨悬索桥损伤预警方法,并以润扬大桥悬索桥为例,详细研究了损伤预警指标的损伤适用性和损伤敏感性。分析结果表明,采用基于小波包能量谱的结构损伤预警指标能有效地发现大跨悬索桥桥面结构的损伤,并且不同预警指标的损伤敏感性不同。

 
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