查询词典 damper

Based on dynamics theory of multi-body systems, a nonlinear mathematical model of frame-bogies with Lenoir damper for freight cars is established. A tank car is taken as an example to study the effects of main parameters on hunting stability, dynamic curving behaviors and running responses of vehicle systems.

以多刚体系统动力学原理为基础，建立了具有利诺尔减振器的构架式转向架的非线性数学模型，并以罐车为例，研究了转向架关键参数对车辆系统的运动稳定性、曲线通过性能及运行平稳性的影响。

Three magnetic amplifier s, such as adjustable-damper controlling, speed-limited protection in deceleration segment, and automatic braking largely used in alternated-elevator system in nation's coal and metallurgy exhibit quickness and firmness.

我国煤炭和冶金矿山大量使用的交流提升机，控制系统采用的可调闸控制、减速段限速保护和减速阶段电气制动三个磁放大器装置，存在快速性、稳定性、对环境参数的依赖性、敏感性均较差等固有弊端，采用现代电子器件和先进的控制技术取代原控制系统中的1CF、2CF、 3CF三个磁放大器及其落后的控制技术，并增加全新的电子速度给定环节，改善提升机性能

The results show that the dynamic behavior of the novel damper is easily controlled by adjusting the magnetic flux density in the radial clearance.

结果表明，通过调整阻尼器间隙中的磁场强度就能够对阻尼器的动力特性进行控制。

The results show that there will be slight decrease of the control efforts when the mean absolute value or the root mean square value of the optimal control force is taken as the maximum designed control force, while the maximum control force of MR damper can be decreased by 85% compared with the maximum optimal control force. The decrease in the designed control force can not only significantly increase the capability of MR dampers, but also reduce the dimension of MR dampers for pratical application in engineering.

研究表明，当设计值取最优控制力的平均绝对值或均方根值时，MR阻尼器的最大控制力比最优控制力的最大值降低了85%，而控制效果降低不多，可以满足对结构的控制要求；降低最大控制力设计值后，不但可以充分发挥MR阻尼器的出力性能，而且可以缩小MR阻尼器的设计尺寸，便于工程应用。

In this paper, a method of the optimum design for a semi-active structure controlled by MR damper system is presented, response of the first vibration mode of the structure is controlled by this method, and both safety and economic demands of the structure are satisfied.

提出一种用于中底层建筑MR半主动控制阻尼器优化设计的方法，它是以控制结构的第一振型反应为目标，可以兼顾安全和经济两方面的要求，且设计过程较为简便。

The unbalance forces due to the lumped eccentric mass are treated as general forces. Meanwhile, the potential energy expression about gravity based on finite element method is presented for convenience. Based on the variational inequalities principle, the finite element is used to determine the film forces produced by fluid film bearing and damper at any moment and its Jacobian matrix with respect to location and velocity of journal and bearing house.

在第二部分中，主要应用有限元方法及Hamilton原理对所研究系统进行了建模分析，着重对质量偏心问题进行了分析处理，并对此提出了两种处理方法：一、转化为对系统动能的影响；二、将其产生的离心惯性力视为非保守的广义力，并对其表达式进行了推导，同时为分析问题方便，基于有限元离散化方法，推导了重力的势能表达式。

Xi ′ an Jiaotong University, Xi ′ an 710049, ChinaAbstract : Impact damper systems are usually rated mechanically on the basis of their movability in the horizontal direction.

冲击减振系统的研究已有许多理论成果和应用实例，但大多是基于活动质量作水平运动的力学模型而进行的。

In this paper, the calculation methods of viscoelastic damper controllingnonlinear earthquake responses of multistory frame structures are investigated.

由于传统的设计方法是提高承重结构本身的抵抗能力来达到增强结构抗震能力的，因此它是以增加材料用量、提高建筑物自重及造价为代价的。

The nonlinear equation of the vibration response of ER damper has been calculated.

对具有电流变流体的阻尼器的振动响应进行了数值计算。

A direct numerical integration of the equations of motion is a general method for analyzing damper-added structures.

时程分析法是减震结构的常用的分析方法之一。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。