查询词典 damping force

When autoloading,the stiffness coefficient and damping coefficient of the torsion spring have influence on ejecting force so as to affect the result of ejecting process.

自动装弹时，扭簧的刚度系数和阻尼系数会影响抛壳力的大小，从而影响抛壳过程能否顺利完成。

In the chapter three, based on the second chapter, by considering the damping effect of the neutral gas and the ion drag force on the dust particle, the electrostatic modes and their instabilities in the dusty plasma in the uniform magnetic field are investigated.

在第二章的基础上，第三章考虑了中性气体的阻尼和离子对尘埃粒子的拖拽力作用，对在均匀外磁场中的尘埃等离子体中的静电波和不稳定性进行了研究，发现中频和低频的波模是衰减的。

The book-model distribution actuator is superior for it can generate greater acting force in lower driver voltage. The actuator is integrated with a constrained damping layer that provides an active-passive hydrid control for suppressing the vibration of thin-wall structures.

研究结果表明，书本式分布作动器是一种能在较低驱动电压下产生较大作动力的作动器，它和约束阻尼层结合构成的可控约束阻尼层主被动一体化控制技术对于薄壁结构振动的抑制效果显著，有着较好的工程应用前景。

At last, natural frequencies of practical pre-stressed composite space truss are tested with pulsatory method on construction site and its damping ratio is calculated, which gives another important data for engineering design. In addition, through the model experiment of pre-stressed rectangular square pyramid composite space truss, the correctness of characteristics of internal force and the feasibility of tension recovery method are proved.

最后，在工程施工现场用脉动法测试自振频率，并借助于振动衰减曲线和半功率点法计算出预应力组合网架——钢与混凝土的混合结构体系——的阻尼比，此又为工程设计提供了一理论依据；另外，通过正放四角锥预应力组合网架的模型试验，验证了结构内力分布特点的正确性以及张力松弛法的可行性。

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。

The spectra indicated that the structural parameters, such as natural frequencies of bodies, damping, distance among structures and time lag due to ground motion, may affect the peak value of collision force.

响应谱表明：结构参数，如固有震动频率、阻尼、结构间的间隔距离、地面运动引起的时间滞后等，都会对碰撞力的峰值产生影响。

Equivalent force over a sector and damping of impellers are analyzed.

其次，推导了叶轮的振动频率的计算方程。

The parameters of the model are researched, and the Amplitude-frequency Curves under various damping ratio and under various exciting-vibration force are compared respectively.

另外，还对该模型进行了参数研究，分别比较了在不同阻尼比和不同激振力情况下的脉冲对系统幅频曲线的影响。

A design of temperature sensor with differential output is given, and its sensitivity as the function of temperature is analyzed theoretically and simulated. The theoretical model of response characteristic of viscous damping microbeam system under periodically driven force is built.

在此基础上，进一步从理论上分析了残存应力对微桥固有频率的影响，推导了微桥固有频率同温度的函数关系，提出了一种差动式谐振温度传感器的设计构想，并对其灵敏度随温度的变化进行了理论分析和模拟计算。

A detailed model of non-linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non-linearity are considered, is proposed in this paper. Based on several numeric examples investigated by the Galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. Another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived. The smallest excitation amplitude,the transient state and steady state resonance amplitudes, and the changing characteristics of the axial force are obtained by using harmonic balance method. According to numerical examples calculated by numerical integration method, the effects of the inner damping of the stay cables are investigated.

本文创新地提出了斜拉桥拉索-桥面耦合参数振动模型，推导了索-桥耦合非线性参数振动方程组，联合Galerkin法及数值积分方法，对各种特性的拉索进行了数值求解，得出了影响拉索参数振动的各种因素；提出了斜拉索受轴向端激励参数振动模型，导出了模型的非线性振动方程，使用谐波平衡法得出了产生参数振动需要的最小激励幅值、共振时瞬态及稳态的振动幅值及索拉力的变化特性，并用数值积分方法对实际斜拉桥拉索进行了计算，分析了拉索阻尼对参数振动的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。