曲率模态在结构损伤识别中有很好的应用。
Curvature mode is an excellent parameter in damage identification of structures.
曲率模态对局部损伤较为敏感，损伤定位比较准确。
Curvature mode is sensitive to the local damage and can exactly locate structure damage.
曲率模态振型可以有效地确定结构早期损伤的存在、程度和位置。
Curvature mode shape can indicate the presence of initial damage and its severity, and locate initial damage of a structure effectively.
研究了适用于桥梁和连续梁结构的基于曲率模态振型的损伤识别方法。
A damage identification approach applied aptly in Bridges and continuous beams, based on the curvature mode shapes, was studied in this paper.
结果表明可以应用曲率模态法和柔度曲率法对梁类结构进行多损伤识别。
The results show that the multiple damaged locations of the beam can be diagnosed effectively by means of curvature mode and flexibility curvature.
第一，在对结构曲率模态分析的基础上，提出了一个新的概念：曲率模态差。
This paper has two works:Firstly, based on curvature modal analysis of structure, it attained a new conception: differences of curvature modal.
首先，应用有限元方法，基于曲率模态叠加原理计算曲率，进而计算应变、应力。
Firstly, with the curvature modal superposition method, the dynamic stress responses is calculated.
而结构发生损伤就表现在刚度变化上，所以结构的损伤识别可以用曲率模态的变化来判别。
While structure damage is reflected by the change of stiffness. Sothe curvature may detect the damage of structure.
数值模拟算例分析表明，曲率模态对结构的损伤较敏感，用该方法识别结构的多点损伤位置是行之有效的。
Numerical simulation analysis shows that the curvature model has a little sensitivity to damage of structures; it is an effective method to evaluate many damage locations identification of structure.
本文通过数值仿真，指出曲率模态对于结构损伤敏感性上的不足，从而提出新的损伤指标即曲率模态变化率指标。
The paper points out the deficient sensibility of curvature mode in damage detection through numerical simulation. Then a new damage feature (change rate of curvature mode) was proposed.
通过有限元模型和实际结构的曲率模态计算得到结构损伤因子，通过分析该损伤因子，可以判断实际结构的损伤位置。
Through comparing the curvature modes of real structure with finite element model, a damage factor was gained. Based on analyzing the damage factor, damage location can be identified.
本文在分析以往研究成果的基础上，找到了一个基于曲率模态的对钢筋混凝土框架结构损伤识别有效的参数——振型曲率比。
In this paper, based on the analysis of preceding research, a parameter, called mode shape curvature ratio, is put forward for damage identification of reinforced concrete framed structure.
利用冲击振动试验法可以准确得到桥墩的一阶振型和一阶频率，利用这两个参数可以构造出一阶振型比、特征参数、一阶曲率模态差三个指标。
The first-order mode and the first eigenfrequency of the pier can be obtained easily and precisely by the impact vibration test method, from which three indexes such as the chang.
因此基于结构的振动是多个振动模态按一定比例线性的叠加的理论基础，提出了一种新型传感器，分布式光纤曲率模态传感器用于薄结构的振动测量。
Based on practical structure can be regarded as the stack of multiple vibration mode, a new concept of modal curvature sensors with optical fiber is proposed to measure vibration mode.
本文基于模态振型，提出一个新的用于结构损伤识别的参数——振型曲率比，并将之作为神经网络的输入向量。
In this paper, based on mode shape, the author put forward a new parameter-mode shape curvature ratio for detecting structure damages. And it is also the input vector of the neural network.
作者利用ANSYS有限元分析软件对一个平面桁架模型进行了模态分析，并用APDL语言编制程序计算该结构的柔度差值曲率。
ANSYS is used to make the modal analysis of a plane truss structure model, then APDL is used to compile procedures to calculate flexibility difference curvature.
发现可以通过模态曲率差的包络图面积，较好的反映出预应力损失程度的大小。
It is founded that the size of curvature difference envelop curve can detect that of pre-stress losses.
对一拉索结构的正常状态及两种损伤状态进行了模态测试，用频响函数的曲率来进行损伤检测。
Modal test was done on a cable-stayed structure in its healthy and two damaged conditions. Curvature of the Frequency Response Function (FRF) was used to detect the location of damage.
对一拉索结构的正常状态及两种损伤状态进行了模态测试，用频响函数的曲率来进行损伤检测。
Modal test was done on a cable-stayed structure in its healthy and two damaged conditions. Curvature of the Frequency Response Function (FRF) was used to detect the location of damage.
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