2) curvature mode difference
曲率模态差
1.
curvature mode difference is put forward.
由于曲率模态法对结构损伤的识别不敏感,所以文中提出了曲率模态差这一新的概念,思想是通过对曲率模态差的突变研究来判定损伤结构中损伤单元的位置。
2.
Through a curvature mode difference peak, the location of damaged anchorage can be successfully asses
讨论了不同预应力损失对PSC梁的振动频率、振型模态及曲率模态差的影响。
3) modal flexibility curvature
模态柔度曲率差
1.
A new indicator called modal flexibility curvature(MFC)is put forward to evaluate structural damage,which is much more sensitive and relies much less on higher modes parameters.
提出了一种称为模态柔度曲率差的损伤检测指标。
4) Flexibility difference curvature modal
柔度差值曲率模态
5) curvature mode
曲率模态
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.
FEM analysis of bridge damage diagnosis based on curvature mode theory;
曲率模态理论在桥梁损伤诊断中的有限元分析
3.
Application of curvature mode in damage detection of plate-like structure based on Chebyshev polynomial;
基于契贝雪夫多项式曲率模态在结构损伤检测中的应用
6) modal curvature
模态曲率
1.
Damage identification for long-span cable-stayed bridge based on modal curvature method;
基于模态曲率法的大跨度斜拉桥损伤识别
2.
A practical method of identifying the locations of the damages in stay cables is proposed by combination usage of the frequency change of vertical bending vibration mode, the modal curvature change of the main girder and the change of stay cable force of the cable-stayed b.
提出了综合运用斜拉桥竖弯振型频率变化、主梁模态曲率变化以及拉索索力变化进行拉索损伤位置识别的实用方法。
3.
This paper presents a comparative study of using the modal curvature index, the modal flexibility index and the cable tension index for damage localization in the cable-stayed Kap Shui Mun Bridge.
以香港汲水门大桥为背景,应用高精度三维有限元模型,对斜拉桥桥面结构损伤位置识别的模态曲率指标、模态柔度指标和斜拉索张力指标进行了比较研究。
补充资料：差模干扰
差模干扰
differential mode interference
切.，侧l曰.日口111以.理模干扰(differential mode interferenee) 出现在电路往、返引线之间的电磁干扰。它与;信号相申联，在受端设备上形成干扰电压。产生差(扰的原因大多是磁场祸合或共模转换。磁场藕合l型电路如图.当往、返引线Ll和L:的环路所链的{磁通变化时，环路中将产生感应电动势均，-一d笋它便是外界磁场辆合引起的差模干扰。共模转换〕的差模干扰见共模干扰。翔轩腆俘/dt，瞅/·甲土甲|‘场 因差模干扰。。在电路中与源电动势(有用信号)氏相串联，使受端阻抗Z上登加一干扰分量。在测量或控制电路中，叠加在有用信号上的这种千扰分量可引起测t误差或控制误动等不良后果。为抑外界磁场祸合引起的差模干‘一源电动势;L，、场一往、返引Z一受端阻抗;声~外界磁通，均 一差模干扰比曳”制差模干扰，可采取双绞线、屏蔽电缆、光缆、滤扭浪涌抑制器等措施。
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