结构损伤诊断是土木工程学科中的热点问题。
Structural damage detection is one of the key topics in civil engineering.
从结构测试的角度论述了结构损伤诊断方法。
The damage identification method is discussed from the structural testing viewpoint.
结构损伤诊断是结构健康监测的核心内容之一。
Structural damage diagnosis is one of core contents of the structure health monitoring.
振动模态分析技术和神经网络技术是解决结构损伤诊断问题的有效工具。
Vibration modal analysis technology and neural network technology is a effective instrument to solve damage diagnose.
在此方法基础上经过改进，提出了另一种基于类柔度拟合的结构损伤诊断方法。
Based on this method, another diagnosis method of structure damages that based on analogous flexibility polyfit is put forward.
基于模型的结构损伤诊断方法需要建立结构准确的数值模型，难以应用于大型复杂结构。
The model-dependent method has to establish the accurate mathematical model of the structure, which would be quite challenging in case of large-scale structures.
采用动力学方法进行结构损伤诊断和参数识别时，结构的边界条件对其动力性能有较大的影响。
The dynamic behavior of a structure is greatly influenced by its boundary conditions, if dynamic method is applied to structural damage identification and parameter identification.
说明了用低阶振型和经优选后的振型向量结合的方法进行组合结构、框架结构损伤诊断的可行性。
Which showed the fassility of using low order frequency and certain mode of vibration or their deriv…
介绍了国内外一些工程结构损伤诊断的研究成果，依据不同的损伤识别参数对裂纹损伤方法进行了介绍。
Especially emphasized are the recent researches on engineering structural damage diagnosis. Methods according to different damage identification parameters are introduced.
因此，开展基于泄流振动响应的水工结构损伤诊断与健康监测研究，对于保障泄流结构安全运行具有重大的现实意义。
So, study on damage diagnosis and health monitoring of hydraulic structure based on vibration response by discharge flow has practical significance for discharge flow structures.
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。
Enclosing damage diagnosis, this pape studies modal experiment in ambient excitation, optimal placement of sensors and structural damage alarming using wavelet packet energy spectrum.
本文阐述了结构健康监测的内容与要求，以及应用振动诊断方法进行结构损伤识别的技术研究与应用现状。
It elaborates the contents and requirements of the structural health monitoring, and the present research and application of damage identification for structure with vibration diagnosis technique.
近年来随着世界范围内结构损伤、老化及病害事故的增多，桥梁的诊断分析研究显得更为迫切。
These years the accidents of structure damages and aging increase around the world; the diagnosis and analysis of Bridges come to a point.
采用经验模式分解(EMD)与小波分析相结合的方法探讨结构响应数据信号，进行建筑结构损伤检测诊断。
The use of empirical mode decomposition (EMD) method and wavelet analysis in combination is explored for the detection of changes in the structural response data from structural damage diagnosis.
近年来人们一直试图寻找能够适用于土木工程结构的整体损伤诊断与评估方法。
People have been trying to look for the global damage diagnosis and evaluate method that can be applicable to civil engineering structure in recent years.
目的：为MRI诊断膝后外侧部结构损伤提供断层解剖学依据。
Objective: to obtain sectional anatomic evidences for MRI diagnosis of the injures of the posterolateral structures of the knee.
传统上，早期快速的诊断和治疗主要是针对稳定循环和修复损伤的结构。
Rapid diagnosis and treatment is traditionally targeted toward hemodynamic stabilization and repair of compromised structures.
研究了利用形状记忆合金和液芯光纤对复合材料结构中的损伤进行自诊断、自修复的方法。
The method of self diagnosis and self repair for composite structure using shape memory alloy and adhesive liquid core optical fibers was studied.
介绍了支持向量机分类和回归算法，将其应用于梁结构的损伤诊断中。
This paper introduces the support vector classification and regression algorithms, which are applied to the structure damage identification.
本文研究损伤自诊断自适应智能结构的系统实现方案。
The realization method for the self diagnostic and adaptive smart structure system is introduced.
通过对结构进行损伤检测与诊断可以及时发现结构中存在的安全隐患，避免重大事故的发生。
The hidden trouble of structure can be detected in time, and accident can be avoided by the damage detection and diagnosis.
但是，目前结构的损伤检测与诊断研究多集中在桥梁、高层等结构上，针对大跨度空间结构损伤检测与诊断的研究很少。
But, presently the research on damage detection and diagnosis of structure focus on bridge and tier building, and the research on large space structures are few.
基于建筑结构的特点，分析了振动模态分析法在建筑损伤诊断中应用较少的原因，并对将来的研究方向提出了几点建议。
Based on the characters of structure, it analyses the reasons that the application of vibration modal analysis on damage diagnosis is less, and some pieces of advice are proposed.
应变模态具有对结构损伤敏感的特点，应用结构杆端应变模态，完全可以实现框架结构节点的损伤诊断。
The strain mode is sensitive to structural damage, and joint damages of framed structures can be diagnosed successfully using Element End strain mode shift.
因此，利用一阶应变振型在损伤前后的相对变化可以对框架结构节点的损伤进行诊断。
So the relative changes of first order strain mode before and after damage can be used to diagnosis the damage of frame structure joints.
建筑结构的损伤诊断分析是结构性能评估的基础。
The fault diagnosis of building structure is the basis of construction performing property evaluation.
板类结构的损伤诊断标识量研究。
对桥梁结构性态的分析研究是进行结构状态识别和损伤诊断与安全可靠性评估的基础。
Study of the bridge structural characteristic is the basic of structure state identification and damage diagnosis.
结果表明，灰色理论能成功地对结构损伤进行预测，神经网络适用于此类损伤无规律对象问题的诊断。
The results show that while the gray system can be very successful in structural damage prediction, neural network technique is applicable to irregular structural damage detection.
针对位移模态参数对结构损伤欠敏感，应用应变模态试验技术诊断结构损伤位置和程度。
Strain modal test is applied to diagnosing the position and degree of structural damage, in consideration of the displacement modal parameters being insensitive to damage.
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