查询词典 vibration mode

In the machine process creation of vibration all have is forced a vibration and from arouse vibration, and tool machine, tongs, knife and work piece the dynamic state characteristic of craft system for constitute relevant.

在机械加工中产生的振动都具有受迫振动和自激振动，与机床、夹具、刀具和工件组成的工艺系统的动态特性有关。

The along-wind vibration and across-wind vibration , icing situations of Guyed Mast are also studied, furthermore, the parametric vibration, the phenomenon of jump and chaos of the Guyed Mast are investigated; also, the wind tunnel experiment of Guyed Mast first made in China is finished and the test result, along with measurement of the real structure, are examined, which provide the reasonable theory and reliable experimental data for the revision of the high-rise structure code.

本文系统地研究了桅杆的顺风、横风以及在裹冰下的风效应，并进一步分析了桅杆的参激振动、跳跃及混沌现象等，完成了国内首次桅杆结构的风洞试验，分析了桅杆实测和试验结果，为今后高耸结构规范的修订提供了的合理的理论依据和可靠试验数据。

Depending on the general solution of the vibration of system given in the front, considerate that the nature wind is always in a gust form, model the load of wind on the canopy and trunk of tree as a impulse load on the free end of the staff, and gets the responses of vibration under these conditions, then picture the curve of the vibration.

根据之前得到的系统振动通解，考虑自然风多呈阵风形式的影响，将作用在树冠和树干上的风载简化为作用在弹性杆自由端质量团处的脉动载荷，进而分析并得到此条件下杆的振动响应，绘出此情况下杆的振动响应曲线。

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。

From the view point of vibration,automobile is divided into a body vibration system and powertrain torsional vibration system.

从振动的角度看，汽车振动系统可分为车身振动系统和动力传动系扭转振动系统。

The fatigue vibration test of corrugated fiberboard was conducted. The influence of the number of vibration and vibration acceleration on the load capacity and cushion coefficient of corrugated fiberboard were determined and compared with non-vibrated corrugated fiberboard.

对瓦楞纸板进行疲劳振动试验，测定分析振动次数、加速度对瓦楞纸板承载能力、缓冲性能的影响，并与未经振动材料进行比较。

Against the background of wind-induced vibration of the H-shaped hangers of steel truss arch bridges,this paper analyzes the degree of influences of the Reynolds number Re,vibration factor ξ,stress magnitude,stress state,boundary conditions and sectional shapes of hangers on the vibration of the hangers of the steel truss arch bridges.

以钢桁拱桥的H型吊杆的风致振动为工程背景，分析了吊杆的雷诺数Re、振动因子ξ、应力大小及应力状态、边界条件、断面形状对钢桁拱桥吊杆振动的影响程度。

Against the background of wind-induced vibration of the H-shaped hanger s of steel truss arch bridges,this paper analyzes the degree of influences of the Reynolds number Re,vibration factor ξ,stress magnitude,stress state,boundary conditions and sectional shapes of hanger s on the vibration of the hanger s of the steel truss arch bridges.

以钢桁拱桥的H型吊杆的风致振动为工程背景，分析了吊杆的雷诺数Re、振动因子ξ、应力大小及应力状态、边界条件、断面形状对钢桁拱桥吊杆振动的影响程度。

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 .The image was dealt with analysis system and data was statistically anlyzed.

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。

According to the applicable standards, there is only the requirement on the vertical bending vibration frequency of the carbody to be higher than 10Hz, while there is none against the frequency of transverse bending vibration and the carbody torsion vibration around the longitudinal axis.

根据有关标准，只要求车体的垂向弯曲振动频率大于10Hz，对侧墙横向弯曲振动频率、车体绕纵向轴扭转振动频率没有具体要求，因此在进行车体模态分析时，把顶盖看成设备，而不必考虑顶盖结构的影响。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。