不平衡力

It comes form vibration signal that obtained by monitoring in two mutual vertical direction on one cross section of the axletree or axes neck.

它可以通过振动位移和激振力的相位的变化来判断转子的临界转速；当挠性转子由不平衡力引起振动时，在不同的转速下有不同的振型，根据不同的振型对转子进行有针对性的平衡；另外根据检测到的轴心轨迹图形状，可以分析出造成振动的具体原因，根据不同的原因进行防振和减振。

In terms of the transmission shaft balancing, it exists another problem that the shaft is not looked at as rigid body.When the rotor running at a high-speed ,under the action of unbalance force ,the transmission shaft will bend. It is certainly ideal to balance a transmission shaft as a flexible rotor.However, considering the mass production of automobiles, this method is obviously unpractical. In order to discreasing the flexible deformation, in this theory, the feasibility that double- plane balancing takes method the place of multi-plane balancing on a special place for one segment transmission shaft.

从传动轴平衡的角度来看，传动轴并非刚体，在汽车高速旋转时，由于不平衡力的作用会使传动轴发生挠曲，如果将传动轴作为挠性转子进行平衡当然比较理想，但是不符合汽车大批量生产的实际，为减少挠曲振动，利用挠性转子平衡原理，对于单根传动轴，从特殊位置进行校正，从而以二面平衡代替多面平衡是可行的。

In the framework of non-equilibrium elastoplastic mechanics, the classic finite element method is extended to the analysis for post-failure state of structure, where the plastic complementary energy norm serves as the criterion of global stability while the unbalanced force and its development indicates the pattern and path of destruction.

在非平衡态弹塑性力学框架下，将经典有限元拓展到结构失稳后的分析，塑性余能范数即可作为库群失稳判据，而不平衡力及其发展则表征了库群失稳破坏的形态和演化路径。

In the third part, the theory of thrust angle and unbalanced forces is studied andapplied to Xiluodu arch dam. some conclusions are obtained :(1) The thrust angle issmaller by elaso-plastic computation than elastic computation. For the non-linearcomputation, the thrust angles at different elevations all increase during overloading,which reveals the internal mechanism of good performance of arch dam in conditionof overloading;(2) The elaso-plastic theory always minimizes the actual unbalancedforces in the sense of a condition number in the norm ofcomplementary energy.

第三部分，通过对溪洛渡拱坝拱端推力角及不平衡力的研究，得出如下结论：(1)非线性计算较弹性计算的推力角大；对于非线性计算而言，拱坝超载过程中各高程段的推力角均有所增加，这反映了拱坝具有较高超载能力的内在机制；(2)在总余能范数的意义上，按弹塑性本构关系确定的不平衡力或加固力是最小的，弹塑性计算确定的加固力和真解相比偏于安全。

Unbalanced force suffered from the spool of view, regulating body spool with two types of imbalance and balance.

从阀芯所受不平衡力看，调节机构的阀芯有通用阀门不平衡和平衡两种类型。

In the method of time-frequency the phase of unbalanced force is confirmed by analysis of time domain and amplitude of unbalanced force is confirmed by analysis of frequency.

在这种时-频动平衡方法中，用时域分析来确定不平衡力的相位，用频域分析来确定不平衡力的大小。

Unbalanced force suffered from the spool of view, the valve core regulatory agencies are two types of imbalance and balance.

从阀芯所受不平衡力看，调节机构的阀芯有不平衡和平衡两种类型。

In the model of ball bearing, three nonlinear factors were considered, such as the clearance of bearing, nonlinear Hertzian contract force between balls and races, and the varying compliance vibration because of periodical variety of contact position between balls and races.

在滚动轴承模型中，充分考虑了滚动轴承的间隙、滚动轴承的滚珠与滚道的非线性赫兹接触力及由滚动轴承支撑刚度变化而产生的VC振动，在转子系统中考虑了由于转子质量偏心而产生的不平衡力。

The necessary condition during dynamic balance structure design of high speed crank press has been pointed out, in order to get rid of unbalance of moving parts, which turns unbalance force trend to minimum.

并指出了在高速曲柄压力机动平衡结构设计中应满足的条件，使不平衡力趋向最小，以消除运动部分的不平衡现象。

Yellow or brown stains, white spots, asymmetrical gum contours and uneven edges can disfigure your smile.

黄色或棕色斑，白斑，不对称口香糖轮廓和不平衡力可以变丑，你的笑容。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐