查询词典 damping-off

Machine tool ; Cutting chatter ; Time-varying system ; AR model spectrum ; Modal damping ratio ; Characteristic root

机床；切削颤振；时变系统； AR模型谱；模态阻尼率；特征根

The models have been applied to an investigation on the chatter in a type Mx-4 lathe. An in-depth study has been made on the AR spectrum, the chatter modal damping ratio and the characteristic root of a time-varying system.

文中对时变金属切削过程颤振的AR谱特性、颤振模态的阻尼率、时变系统的特征根这三个方面都进行了深入的研究，指出了时变金属切削过程颤振的特点，提出了颤振状态下的机床切削系统仍然是稳定系统的观点。

With this method, the damping characteristic and the steady state stability of power systems can be considerably improved.

该方法紧密地结合了电力系统实际，考虑了电力系统对励磁控制的基本要求，能够同时有效地改善电力系统的阻尼特性和提高电力系统的静态稳定性。

Contrapose the phenomenon that the circler error probability is a little larger in the ground dynamic navigation test of the laser gyroscope strapdown inertial navigation system , a better vibration damping system needs to be designed for SINS with laser gyroscope .

针对激光陀螺捷联惯导系统在地面动态导航测试中圆概率误差偏大的现象，要求给激光陀螺捷联惯导系统设计出性能优良的减振系统。

From the traditional ones, needn't any additional clastic elements and damping elements.

文中较详细地阐述了根据这一思想设计壳体基础的步骤及有关算法。

The results of numerical simulation demonstrate that the index of the damping of the closed loop system is recommended to select to use.

数值仿真结果表明，闭环系统阻尼值的优化指标，本文推荐为优选指标。

Application of closed-loop gain shaping algorithm in rudder roll damping system.

闭环增益成形算法在舵阻摇系统中的应用。

The effective damping coefficient showed the total function of the honeycomb seals to the stability of the rotor.

在分析体现蜂窝密封对转子稳定性总体影响的有效阻尼时，采用该方法得到的计算结果与测量值非常接近。

By using damping force between steel and columniation after pre-deformation, adjusting the type, quantity, length and position of the steel bar, and changing pre-deforrnation of the steel bars, all kinds of deceleration curves can be repeated.

介绍了自行设计的汽车模拟碰撞吸能器的特点及原理，利用LS—DYNA有限元分析软件对吸能器的波形复现原理进行了仿真分析，利用销柱间钢筋预变形产生阻尼力，改变钢筋的属性并调节钢筋的类型、数量、长度和位置，改变钢筋预变形量，复现出不同车重、不同碰撞车速所期望的减速度波形。

The way to calculate the added-mass and the damping coefficient of the ship sections by conformal mapping and pulsating source method.

重点介绍了用多级展开法和源汇分布法求解船体切片段的附加质量及阻尼系数。

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。