1) the sudden change coefficient of flexibility of curvature
柔度曲率幅值突变系数
1.
Testing damage on the steel truss structure using the method of the sudden change coefficient of flexibility of curvature;
钢桁架结构损伤检测的柔度曲率幅值突变系数法
2) change rare of flexibility curvature
柔度曲率改变率
1.
First change rare of flexibility curvature is used to locate structural damage.
针对结构损伤问题,采用损伤定位、定量的分阶段识别方法,即利用柔度曲率改变率指标来确定结构损伤的具体位置,然后以频率改变率为输入参数构建神经网络对损伤部位进行程度识别。
3) flexibility difference curvature
柔度差值曲率
1.
By investigat- ing the clamped uniform beam which is the main component of the suspended bridge,the damage detection is conducted using the flexibility difference curvature.
本文对悬索桥的主要构件加劲梁进行分析,利用损伤结构柔度差值曲率的变化对其进行损伤识别。
2.
In this paper, we have studied the method of structure damage detection based on mode parameter, and a new mode parameter-flexibility difference curvature is put forward to detect damages.
本文对基于模态参数的结构损伤识别方法进行了研究, 提出一个新的模态参数——柔度差值曲率,该方法只需要利用损伤前后结构的柔度差值曲率就可以识别结构的损伤位置和损伤程度,通过一平面桁架结构的数值算例表明,只需利用结构的前2阶模态参数,便可获得较好的识别精度。
5) scope saltation
幅值突变
1.
Frequency saltation and scope saltation are chosen to simulate the fault signal,which is processed with the algorithm of wavelet and digital filter.
选取频率突变和幅值突变仿真故障数据,分别采用小波分解和数字滤波的方法进行处理。
6) flexibility curvature
柔度曲率
1.
Multiple damage detection of variable section beams based on curvature mode and flexibility curvature;
基于曲率模态和柔度曲率的变截面钢梁多损伤静态识别
2.
A Study of Flexibility Curvature Matrix for Structural Damage Identification
基于柔度曲率矩阵的结构损伤识别研究
3.
Take the case of the identification of damaged locations in simple beam,the sensitivities of the curvature mode and the flexibility curvature are analyzed by the modeling and the computation with the finite element method.
以简支梁的损伤识别为例,用有限元方法进行建模和计算,比较分析了曲率模态和柔度曲率对结构损伤识别的敏感性。
补充资料：幅值裕度
分子式：
CAS号：
性质：相角交界频率ωL(即开环频率特性相角ψ(ωL)=－180°时的频率)上。开环频率特性幅值。
CAS号：
性质：相角交界频率ωL(即开环频率特性相角ψ(ωL)=－180°时的频率)上。开环频率特性幅值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条