本文利用结构柔度矩阵与刚度矩阵之间的广义逆关系,建立了一种基于柔度的结构损伤定位方法。
According to the pseudo-inverse relationship between global stiffness matrix and flexibility matrix, a flexibility-based method for structural damage localization is presented.
发现基于概率神经网络的结构损伤定位方法能够正确识别单一位置损伤,且组合参数作为输入指标时的识别效果更好。
The result indicates that probabilistic neural networks can localize the single damage correctly, and the networks with the compounded index show better effectiveness.
应用振动测试的模态分析方法,对钢筋混凝土结构锈裂损伤定位与识别进行了探讨。
Modal analysis method is used to discuss the location and identification of the damages to reinforced concrete structure due to corrosion and cracking.
首先,将得到的结构响应信号进行小波包分解,然后通过小波包能量变化率指标来进行损伤定位。
Dynamic signals measured from experiment beams are first decomposed into wavelet packet components, then the wavelet energy rate index is computed and used to detect location of damage.
首先将所得的结构响应信号进行小波包分解,然后通过小波包能量变化率指标进行损伤定位。
Dynamic signals measured from experiment beams are first decomposed into wavelet packet components, then wavelet energy rate index is computed and used to detect location of damage.
文章对一些常见的混凝土构件裂缝作了分类研究和损伤定位分析,介绍一种评价方法,旨在为混凝土结构的养护、管理提供参考。
A method of evaluating the crack and damage is introduced. The presented work is beneficial to the maintenance and management of concrete structures.
数值试验表明,该方法对桁架结构的损伤可进行精确的定位和标定。
Numerical results show that the method can localize and quantify the damage in truss structures precisely.
针对混凝土结构形体较大的特点,提出利用传感器列阵的损伤近似定位方法。
A damage locating method based on the transducers array is also proposed for the huge scale property of concrete structure.
结果证明这两种方法在进行空间结构的单损伤识别时都是有效的,都能够精确的定位杆件的损伤。
The calculating results indicate that two methods are valid in identifying the damage in spatial structure, and accurate in damage location.
推导了基于测试频率平方变化比的损伤定位方法,利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。
A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
推导了基于测试频率平方变化比的损伤定位方法,利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。
A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
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