查询词典 vibration-proof

The vibration modes in ABA sandwich 180°domain structure have been analysized, it was found that the FDLW includes symmetric vibration mode and aymmetric vibration mode. A new asymmetric vibration mode have been found in the two Layer 180°domain structure with two metalized surfaces.

并指出基模色散特性的差别主要来自于畴层结构的不对称，铁电畴层波是畴最不对称情况下压电耦合的结果，随着层数目的增加，奇数层和偶数层的这种基模色散的差异将逐步减少，最终趋于铁电畴层弯曲波。

Experimental research on the vibration of single slab and multi ones set in the arch ring is carried out in the first time. Slab vibration divisions along the water flow are proposed and their lists are determined. Laws of vibration distribution along water flow, across the arch ring, in time zone and frequency one are established. The most dangerous condition to slab's stability is obtained by comparing slab vibration in the different downstream depth.

首次对反拱水垫塘拱圈弹性单、多底板块的振动特性进行了试验研究，提出了拱圈底板块沿流程的振动分区，给出了各振动区的界限，得到拱圈单、多底板块振动特征值沿流程及沿拱圈的分布规律，底板块振动的时域和频域特性，对不同下游水位的振动特性进行了比较，给出了对拱圈底板块的稳定最不利的条件。

The vibration response of the viaduct structure by steel spring bearing, the viaduct structure by laminated rubber bearing, the track structure by Colon egg vibration damper, the track structure by steel spring damper and the ballast bed track structure are simulated through vehicle passed. The vibration parameter of the viaduct is optimized and the vibration transfer function characteristic of the ballast bed track structure and the track structure by steel spring damper are compared.

对钢弹簧支座高架桥结构、普通板式橡胶支座高架桥结构、克隆蛋减振器式轨道结构、钢弹簧浮置板减振器式轨道结构和普通碎石道床轨道结构在列车运行作用下的振动响应进行了仿真研究分析，对高架桥结构隔振参数进行了优化，比较了浮置板式和普通碎石道床轨道结构的振动传递特性。

Using the models, the author has also calculated the vibration response to high speed railway vehicles of three types travelling over simply-supported beam bridges with various span lengths respectively. Based on the analysis of the computation results, the concept of resonance velocity of a bridge under a high speed running vehicle is present, and it is pointed out that comparatively great vibration of bridges on high speed railways is caused by bridge resonance resulted from the static force pulsating. In a vehiclebridge coupling vibration system, the damping constant of the axle spring is the main factor affecting the response variable of bridge velocity resonance, and the influence of track irregularity on bridge vibration on high speed railways is rather smaller.

利用所建立的计算模型，计算了三种形式的高速铁路车辆通过各种跨度简支梁桥结构时的振动响应，对所得到的计算结果进行了详细的分析，提出了高速行车下桥梁共振速度的概念并指出高速铁路桥梁产生较大振动的原因是静力脉动引起桥梁共振造成的；通过研究车—桥耦合振动系统方程的参数后指出，在车—桥耦合振动系统中，车辆—系阻尼的大小是影响桥梁速度共振时响应大小的主要因素，轨道不平顺对高速铁路桥梁振动的影响较小。

Electric massager high frequency due to vibration, vibration strength is weak, more suitable for the elderly in the use of massage and health care; and electromagnetic vibration frequencies due to slow massage, vibration strength is higher and thus more suitable for sports massage and young people.

电动按摩器，由于高频振动，振动强度较弱，更多的在按摩和保健使用适合老人和电磁振动频率由于缓慢按摩，振动强度较高，因此更多的运动按摩和青年合适的人。

ObjectiveTo observe the effect of vibration massage apparatus on skin temperature by infrared thermal imaging system .Methods30 healthy students of Shanghai university of TCM accepted two operations of vibration massage apparatus-non-vibration and vibration . The temperature diversity was obseved at different time : before operation , after 3min operation, after evaluating apparatus 1, 2, 3,4,5 min by infrared thermal imaging system .

方法上海中医药大学的30名健康大学生先后接受机械振动按摩器的空置和振动两种操作，用红外热像仪分别于操作前0 s、操作3 min后即刻、撤离仪器后1 ，2，3，4 min和5 min观察受试者以心俞为中心的手掌大小区域的温度的动态变化，并用分析软件处理相关温度数值，将结果进行统计学分析。

Guangxi Yantan turbine diameter 8m 90s in the 20th century in operation, mainly due to the hydraulic design and manufacturing quality Runner and other reasons, put into operation a serious vibration, cracks, vibration tube into the door crack, power generation Floor Vibration machine layer. 10 years of annual repair cracks, cavitation, multiple blade line has been restored can not be guaranteed, for the more radical change in this situation, has on one desktop PC upgrades, replacement of the old wheel, replaced by a Taiwan new designs, new technology a new wheel, troubled years of generating station floor floor vibration problems are basically solved.

广西岩滩水电站直径达8m的水轮机在20世纪90年代投入运行，主要是由于水力设计和分瓣转轮制造质量等原因，投入运行后振动严重，裂纹产生，尾水管进入门振裂，发电机层楼板振动。10年来年年修补裂纹、空蚀、多次修复后叶片型线已无法保证，为较彻底的改变这种状况，已对其中一台机进行升级改造，更换了老转轮，代之以一台新设计、采用新工艺的新转轮，困扰电站多年的发电机层楼板振动问题得到基本解决。

Article 17 Muffling or vibration-proof measures shall be taken against the mechanical equipment, motor vehicles, catering and entertainment places and other sources of noise that produce noise or vibration, and the noise or vibration must meet the relevant standards.

第十七条对产生噪声和振动的机械设备、机动车、饮食娱乐服务场所以及其他噪声源，应当采取消声防振措施，其噪声和振动必须符合有关标准。

To provide a stable and vibration-proof environment , so that Mask Aligner could be vibration proof even under the high image magnification rate.

提供稳定无震的空间，如此曝光机在高倍率放大的对位情况下对位系统不会有影像振动的情形。

For aiming at vibration-proof structural design,a bionic design technique of topology design optimization for vibration-proof plate and shell structures is suggested.

以抗振结构设计为目标，将仿生设计技术应用于板壳结构加强部件的分布设计中，提出了一种简单高效的结构拓扑优化设计方法，以处理具有复杂边界条件的抗振板壳结构的拓扑优化设计。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。