1) dynamic loss factor
动态损耗因子
2) modal loss factor
模态损耗因子
1.
Some conclusions are drawn: the modal frequency and modal loss factor of the ER beam will become bigger when the applied electric field intensity is increased.
在此基础上 ,研究了具有简单的边界条件夹层梁的动力学特性 ,得出了在外加电场作用下 ,电流变层合梁模态频率和模态损耗因子都随着电场的增大而增大 ;电流变层合梁的低阶模态损耗因子变化趋势大于高阶模态损耗因子的变化趋势 ;在同样的电场 (或电压 )作用下 ,层合梁的低阶模态损耗因子大于高阶模态损耗因子。
2.
The Reissner sandwich plate theory was applied to predicting the natural frequencies and modal loss factors of constrained damping structure.
利用Reissner夹层板理论研究了约束阻尼结构的固有频率和模态损耗因子的计算。
3.
This paper analyzes the natural frequency and modal loss factor of stiffened plates with viscoelastic damping treatment by finite element method.
对敷设粘弹性阻尼的加筋板的固有频率和模态损耗因子进行了分析。
3) loss factor
损耗因子
1.
Relation between acoustical absorption coefficient and loss factor in reverberant field with statistical energy analysis(SEA);
统计能量分析混响声场中吸声系数与损耗因子关系研究
2.
Calculation of frequency and loss factor of composite sandwich structures;
复合夹层结构频率及损耗因子的计算
3.
The effects of additional magnets on the loss factor of a smart magnetic partially constrained layers clamped-clamped beam;
附加磁体对局部约束阻尼固支梁损耗因子的影响
4) tanδ
损耗因子
1.
The results showed that the relaxtion rates of the test pieces aged at room temperature and 60 ℃ increased,but their thickness,break-down strain and tanδ changed little indicating that MVQ foam had better heat resistance;and the thickness and break-down strain of the test piece aged at 60 ℃ + loading decreased significantly,its relaxation rate in.
结果表明,经过常温贮存和60℃老化后的MVQ海绵松弛率增大,厚度、破坏应变和损耗因子(tanδ)都无明显变化,说明MVQ海绵具有较好的耐热老化性能;经过60℃加载老化后MVQ海绵明显变薄,破坏应变大幅度降低,松弛率有一定程度增大,tanδ略有减小,说明加载因素对MVQ海绵的性能有较大影响。
2.
The results showed that the basic physical properties of test compound were similar to those of existent production compound;the rolling resistance and heat build-up of test compound decreased because of smaller tanδ at 40~100 ℃,and the ice and wet traction improved significantly because of greater tanδ at-15~+15 ℃.
结果表明,试验配方胶料的基本物理性能与生产配方相差不大;损耗因子(tanδ)在40~100℃内较小,胶料的滚动阻力和生热降低,tanδ在-15~+15℃内较大,胶料的抗冰滑和抗湿滑性能优异;试验轮胎在冰滑和湿滑路面上的抓着力较大,行驶时牵引力增大,制动距离明显缩短,同时滞后损失和生热降低,即轮胎的抗滑性能、滚动阻力和耐磨性能获得很好的平衡。
5) loss tangent
损耗因子
1.
Thirdly,the loss tangent and storage modulus for fiber reinforced concretes of 6 different ratios were measured in the range of.
0Hz)条件下测定了6种不同配比复合纤维增强阻尼混凝土的损耗因子与储存模量,最后对纤维的阻尼增强机理进行了初步探讨。
2.
Therefore,through the measurement for loss tangent or the viscous coefficient of material,the damping matrix of st.
我们可以通过实验测试材料的损耗因子或粘滞阻尼系数(材料阻尼),像结构质量矩阵、刚度矩阵一样通过比较确切的计算得到弹性阶段结构内阻尼的阻尼矩阵(结构阻尼),而且此阻尼矩阵既基于材料阻尼实验测试,又便于数学处理,且物理意义明确。
3.
The storage modulus and loss tangent of the different cement mortars after adding the silane - treated silica fume or as-received silica fume in the cement mortar were measured by the viscoelastic analyzer VA4000 at the temperature of -30-30℃ and frequency of 0.
1～2 Hz条件下测定了在水泥砂浆中掺加硅粉和改性硅粉后水泥砂浆的储存模量和损耗因子;用X射线和扫描电镜对掺硅粉和改性硅粉的水泥砂浆试样进行了微观分析;最后对硅烷偶联剂的改性机理进行了分析。
6) dissipation factor
损耗因子
1.
In the test experiment, the value of stiffness, damping coefficient and dissipation factor are obtained, based on the experimental result, the relation between dynamic characteristic and frequency is analyzed.
利用基础激振、共振质量法设计了专用的实验系统,对新型阻尼橡胶的动态特性进行了测试,获得了阻尼橡胶刚度系数、阻尼系数以及损耗因子等特征参数值,并分析了特征参数与使用频率之间的对应关系。
2.
The solubility, dielectric constant, and dissipation factor of the polymer were improved alter acetyl substitution of poly(p-xylylene).
与聚对苯撑二甲基聚合物相比引入乙酰基后聚合物的溶解性、介电常数和损耗因子均有所提高。
补充资料：动态力学损耗谱
分子式：
CAS号：
性质： 在动态力学作用下物体损耗的温度或频率依赖关系。前者又称力学损耗温度谱，后者又称力学损耗频率谱。它是聚合物动态力学性能的重要内容，常用于研究聚合物的分子运动和结构-性能关系。
CAS号：
性质： 在动态力学作用下物体损耗的温度或频率依赖关系。前者又称力学损耗温度谱，后者又称力学损耗频率谱。它是聚合物动态力学性能的重要内容，常用于研究聚合物的分子运动和结构-性能关系。
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