振动计

First of all, Cauchy inequality is used to obtain a basic inequality. Secondly, the functions of basis are made by Galerkin method, and the error estimates of eignevalues are obtained by Cauchy inequality. At last, the computational method of the approximate value of the eigenvalues turns out immediately, and accuracy of the-th approximate value is estimated by the n-tb approximate value.

首先利用Cauchy场不等式证明了一个基本不等式；其次采用Galerkin方法来构造适当的基函数，并利用Cauchy不等式给出了其特征值计算的误差佑计式；最后得到计算梁横向振动问题的特征值的近似值的算法，而且可以用第n次近似值来估计第n-1次的近似值的精确度。

The excess molar volumes of {1,8- cineole +CCl 4,+CHCl 3} were determined as a function of mole fraction x using a vibrating-tube densimeter at the temperatures 298 15 and 308 15K All mixtures exhibit negative values over the entire composition range at both temperatures.

在 2 98 15K和 30 8 15K下用振动管密度计在全浓度范围内测量了桉叶油素分别与四氯化碳和三氯甲烷构成的二元系的过量摩尔体积。这 2个二元系的过量摩尔体积均为负值，且桉叶油素与氯仿的过量体积显著大于桉叶油素与四氯化碳的过量体积

This dissertation first puts forward the model of driving force transformation which the contact region of stator and rotor is divided into three relative sliding areas such as braking—driving—braking by means of research on vibration characteristics of USM stator surface points and micro driving course to rotor, this model can explain variation regularity of USM load characteristics, moreover, simplified calculation formula of rotor driving force concerned with stator teeth is set up.

本文通过对行波超声马达定子表面各点的振动特性和定子对转子微观驱动过程的研究，首次提出将定子和转子接触区划分为制动区—驱动区—制动区三个相对滑动区的驱动力转换模型，这一模型能够解释超声马达负载特性变化规律，并建立了计及定子齿的转子驱动力计算简化公式，该式能应用于多于两个定子齿驱动的转子驱动力计算。

For analysis of traditional experimental modal, hammer and shaker are often used to force the structure as the clamped-clamped beam to raise the vibration of the structure, meanwhile accelerometer is placed on the structure as a sensor, then the modal parameter could be found.

传统实验模态分析大多使用冲击鎚或激振器施加点力於结构例如固定梁，做为驱动器激发结构的振动，利用加速度计做为感测器置於结构上，以求取结构之模态参数，但传统之模态实验设备都有实验操作不易以及价格昂贵的缺点。

Ionic liquid; density; vibrating tube densimeter; least square; fitting

中文关键词：离子液体；密度；振动管密度计；最小二乘法；关联

The measurements were performed simultaneously by using a vibrating-wire instrument operating in the forced mode of oscillation.

采用振动弦黏度/密度计对碳酸二乙酯的黏度与密度进行了实验研究，测量的温度范围为263～363 K，压力范围为0.1～20 MPa。

The Sonometer includes two bridges and ten wires, two each of the following diameters and linear density

振动频率计包括两个桥臂和十根金属丝，每两根具有如下的直径和线密度

Company to operate the noise and vibration measurement and analysis equipment, including from a simple integral sound level meter, single-channel real time analyzer, dual-channel real-time multi-channel analyzer to the interactive analysis system, the artificial head recording and playback system.

公司经营的噪声与振动测量分析仪器包括从简单的积分式声级计、单通道时实分析仪、双通道实时分析仪到多通道互动式分析系统、人工头录音和回放系统。

The dependence of couple angle, radian frequency and the mass of the joint on transmission and reflection coefficients are analyzed.

通过数值计算分析了耦合角度和振动频率以及是否计及耦合点质量对传播效率和反射效率的影响。

In order to investigate the excitation mechanism and response characteristics of wind-rain induced vibration of stay cable,an instrumentation system of wind-rain induced vibration measurement,which consists of anemometer,rain gauge and accelerometer,was installed on the Dongting Lake Bridge,Yueyang,China.

为了研究斜拉桥拉索风雨振的机理及响应特征，在岳阳洞庭湖大桥建立了由风速仪、雨量计、加速度传感器组成的风雨振现场观测系统，观测到了多次拉索风雨振现象；得到了发生拉索风雨振时风速、风向及雨量的基本条件，分析了风雨振时拉索振动的幅值、主振频率、模态参与特性及空气动力负阻尼比等响应特征。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了