1) identification of multiple damaged locations
多损伤位置识别
2) damage location identification
损伤位置识别
1.
The generalized modal strain energy index, the displacement grey incidence and the cable tension index are presented for the damage location identification of cable-stayed bridges.
研究斜拉桥结构的损伤位置识别问题。
3) identification of damage position and damage degree
损伤位置及程度识别
4) multiple damage detection
多损伤识别
1.
Based on the curvature mode and flexibility curvature,the multiple damage detection of the first step modal index to one cantilever beam and one simple beam with same damage but different location in different numerical computing cases are calculated by using the result of modal analysis.
以具有损伤位置不同但损伤刚度相同的变截面悬臂梁和简支梁为研究对象,通过结构模态分析,以曲率模态和柔度曲率为识别参数,计算各种工况下仅用第1阶模态参数的多损伤识别结果并进行了对比。
5) Multiple damage
多位置损伤
1.
It was proved that the variation rates are superpositionable,so that the variation rate of the first modal caused by multiple damages is obtained by superposition of all variation rates of the first modal caused by all the damages.
引入了一阶振型变化率的概念,并且证明了一阶振型变化率具有可叠加性,多位置损伤所引起的一阶振型变化率是各单位置损伤引起的一阶振型变化率的线性叠加。
2.
Three damage detection methods for multiple damaged sections in structures were investigated to improve safety monitoring of simply supported beam bridges.
分析了柔度差方法应用于多位置损伤检测的局限性。
补充资料：多苯基多亚甲基多异氰酸酯
多苯基多亚甲基多异氰酸酯，简称PAPI，或称粗MDI，浅黄色至褐色粘稠液体．有刺激性气味。相对密度(20℃／20 ℃)1．2，燃点218℃。PAPI实际上是由50％MDI与50％官能度大于2以上的多异氰酸酯组成的混合物。升温时能发生自聚作用。溶于氯苯、邻二氯苯、甲苯等。PAPI的活性低，蒸气压低，只是TDI的百分之一，故毒性很低。
用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
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