It includes concrete with nanophase materials and carbon fibre reinforced concrete with self-sensing properties, self-damping concrete and self-repairin.
自感知混凝土(纳米混凝土、碳纤维混凝土)、自阻尼混凝土和自愈合混凝土等是智能混凝土研究的热点。
All Dielectric Self-Supporting(ADSS)fiber optical cables take place aeolian-vibration due to their low self-damping characteristics.
国内首次对ADSS的自阻尼特性进行了测试,并对使用的两种防振金具的防振方案进行设计,并采用能量平衡原理分别对防振效果进行了评估和比较。
Aging experiment studies of aeolian vibration prevention effects on a 13-years-old operating 500 kV conductor with large span show that with the passage of time,the self-damping characteristics and the effect of vibration prevention measures of conductor and ground wire will gradually deteriorate.
通过对运行13年的某500 kV大跨越导线进行微风振动防振效果时效分析试验研究,证明随着运行时间的推移,线路导地线的自阻尼特性及防振措施性能将逐步劣化,建设初期所设计的防振措施将有可能不再有效地抑制微风振动,造成微风振动超标,这将会严重威胁大跨越线路的安全可靠运行。
According to the constitutive equations and governing differential equations of anelastic displacement fields(ADF) model,a finite element equation of free-layer damping(FLD) cantilever beam was studied.
根据非弹性位移场(ADF)模型的本构方程和控制方程,推导了自由层阻尼梁单元的有限元方程。
Secondly with non-damping layers,free damping layers and constrained damping layers,the oil pan noise radiation is analyzed.
对某柴油机的油底壳进行了模态试验、模态分析和谐响应分析,得到其振动响应特性的基础上,利用边界元方法对没有阻尼层结构、具有自由阻尼层结构和具有约束阻尼层结构的油底壳的声辐射特性进行了研究,得出了阻尼结构对改善油底壳的声辐射特性的一些规律。