查询词典 dynamic friction

Dynamic coupling drive, no friction and impact sound.

盘动联轴器，深井泵无摩擦及碰撞声音。

The nonlinearities, uncertainties and unknown disturbances, such as second-hand DC motors, vibration effect, variable friction, gear backlash, stick-and-slip and self-made driving circuits, of the proposed platform affect the dynamic behavior very much.

本文提出一神经模糊动模式控制架构并应用於小台控制系统。这个实验平台的非线性、确定性及未知干扰，如：二手的直马达、振动效应、变动的摩擦、齿间隙、平顺运转及自制驱动电，严重影响系统的动态为。

The method utilizes the friction force between the object to be moved and the fixed base plane, and the reaction of the inertial force caused by a dynamic rapid deformation of a piezoelectric element.

这种方法是利用移动体与固定的基平面之间的摩擦力以及由压电元件动态的急速变形所产生的惯性力的反作用力来产生精确运动的。

Because the workpiece is in dynamic balance, the resultant moment acting on it should be zero. Introducing the moment from lapping tool and press head a moving differential equation is built. In this equation only workpiece rotating speed is unknown. It means that workpiece rotating speed can be got by this equation. Since there is a transcendental function in integral function of the equation an analytic result can not be got, only digital result can be got by a computer. Thus a change rule of workpiece rotating speed with lapping parameters is known, e.g. the radius of press disc ball socket, radius of press head ball, the distance between the workpiece rotating axis and lapping tool rotating axis, workpiece radius, modulus of elasticity of the press head and press disc, friction coefficients between the lapping tool and workpiece, and between the head and disc, pressure between the lapping tool and workpiece and pressure between the press head and press disc.

因工件处于动态平衡状态，其上所受到的来自于磨具和压头的力矩应相等，将二力矩表达式联立，建立工件运动微分方程，该方程中只有工件的旋转角速度是未知量，因此可以求出工件旋转角速度，但该方程积分式中含有超越函数，得不出解析解，只能通过计算机求出数值解，得出工件旋转角速度随各研磨参数的变化规律，如压盖球座半径、压头的球头半径、工件回转中心相对磨具回转中心的偏心距、工件半径、压头和压盖材料的弹性模量、磨具与工件间的摩擦系数、压头压盖间的摩擦系数、磨具与工件间的压强、压头压盖间的压力等。

The measuring principle is explained,the design of the measure system and the realization of the measure arithmetic is proposed based on the dynamic measuring principle,and a feasible elimination method of friction torque is introduced.

介绍了一种快捷、简便的确定开卷机、卷取机传动系统转动惯量的动态测量方法，阐述了它的原理，提出了基于这种方法的测量系统的组成及测量算法的实现，并对摩擦阻力矩的消除提出一种可行的方法。

The nonlinear dynamic behavior of a vibration system affected by dry friction is investigated in the paper.

对含干摩擦振动系统的非线性动力学行为进行了研究。

Two dynamic mechanics models were established by using Lagrange equation for two calculation methods of friction of sidewall.

同时对侧摩阻力的另一种计算方法，也建立了相应的下沉动态力学模型。

Based on the analysis of dip angle, friction coefficient between rigid bodies, influence effect of floor sliding block and roof fracture rock-mass, working resistance of support as well as compound characteristics of face surrounding rock, main factors which lead to destabilize in system "R-S-F" were obtained, and the controlling pattern of dynamic stability of firming bedding, controlling keys, achieving the goal were also established.

通过对工作面围岩组成特征、支架工作阻力、顶板破断岩块及底板破坏滑移体影响效应、刚体之间的摩擦因数以及煤层倾角等因素的分析，给出了引发"R-S-F"系统失稳的主导参数，确定了"稳固基础，控制关键，达到目的"的"R-S-F"系统动态稳定性控制模式和现场生产管理过程中需注意和解决的关键技术问题。

Although simulation methods for nonlinear static friction model have been brought forward,there isn't any effective method to simulate dynamic model up to the present.

如今摩擦的仿真研究都局限于非线性静态模型的实现，而对于微分方程描述的动态模型，还没有有效的实现方法。

The friction moment is an important usage function parameter of the ball screw unit, whose variation has effect on dynamic characteristic of ball screw unit.

摩擦力矩是滚珠丝杠副的重要性能参数，其变动量对滚珠丝杠副的动态性能有很大影响，因此对摩擦力矩的测量是滚珠丝杠副出厂检测的基本要求。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。