查询词典 damping-off

"But if damping factor is a number derived from the speaker impedance, and speaker impedance dances all over the chart, how can damping factor just be a single number?"...

"但是如果阻尼因子是从扬声器的阻抗计算出来的数值，而且扬声器阻抗会在整个图表上跳舞的话，怎么有可能阻尼因子只是一个单一的数字？"。。。

With the research of the mechanism of fluid damping, the expression of the fluid damping force is established.

本文首先通过研究流体阻尼的形成机制，建立流体阻尼力的函数表达式。

The excitation displacement and damping force were measured and the equivalent damping was evaluated from the experimental results.

试验采用频率为4 Hz、振幅为1 mm的正弦波，通过所记录的阻尼器位移和阻尼力时程来评价阻尼器的等效阻尼及其变化，并对阻尼器的刚度影响进行了定量分析。

Therefore, the property of the damper depends on magnetic-magnetic field parameters and magnetic-viscosity characteristics of the MR fluid. In this paper, the effect of various parameters on damping force has been discussed by analyzing of the damping mechanism.

本文通过对液力阻尼的机理分析，较为深入地探讨了引起阻尼的各种参数对阻尼力的影响效应，重点研究了用磁流体作为阻尼液而实现阻尼可控的途径、理论和实现方法。

The measurement of damping capacity is one of the key problems in developing novel structural materials and high damping materials.

阻尼性能的测试是新型结构材料和高阻尼材料的研究和开发中的一个关键问题。

Based on the classic composites laminates theory,the stiffness matrix and the equivalent damping matrix of the laminates which can be described by elastic constants and damping constants were determined.

根据经典层板理论分别推导出了显含弹性常数和显含阻尼系数的纤维增强复合材料层板的刚度矩阵和等效阻尼矩阵。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

Based on ANSYS and SYSNOISE software, How the thickness, stiffness, boundary conditions, material density, elastic module and damping factor of viscoelastic structure to affect the sound radiation is discussed in the paper, then some useful conclusions are drawn from them, which will give engineers a guideline to choice the optimization damping.

最后，本文对粘弹性阻尼夹层板结构的声辐射进行了计算，并研究夹层板结构的厚度、加筋方式、边界约束条件、板材、厚度、材料弹性模量、阻尼材料损耗因子、阻尼层密度等参数对声辐射产生的影响并进行比较，得出了一些有益的结论，为最佳阻尼的处理提供了一定的依据。

The average increase in the damping over the analysed time periods of imperfect walking was up to 10 times higher than the damping of an empty footbridge.

中的平均增长阻尼比分析的时间段不完全走路是高达10倍，阻尼一个空的行人天桥。

The damping ratio is studied by the complex mode method, the forcing decoupling method, and the equivalent damping method based on deformation energy.

采用复模态设计方法、强解耦振型分解法、基于变形能的等效阻尼法三种方法分别对不同情况的消能减震结构阻尼比进行研究，得到选择消能减震设计方法和不同方法计算精度的规律，对消能减震结构设计具有参考价值。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。