非线性振动

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。

In the model, the rotor mass unbalance and rubbing fault3 were fully considered. The nonlinear factors of ball bearing, such as the clearance of bearing, nonlinear Hertzian contract between balls and races, and the varying compliance of bearing support were modeled.

在模型中，充分考虑了转子系统的不平衡和碰摩故障的耦合，对滚动轴承模型，充分考虑了轴承间隙、滚珠与滚道的非线性赫兹接触以及山滚动轴承支撑刚度变化而产行的VC振动。

Then it is presented that the existence of hysteretic damping can be determined according to the shape of hysteretic circle.

具有滞回作用力的系统是振动利用工程中较为常见的非线性系统，有着广泛的工程背景。

To suppress the load vibration inharmonic drive system and enhance the trajectory tracking accuracy,a kind of feed back control method of acceleration sensor is presented here.

但谐波减速器的柔性、非线性摩擦、随速度波动、低阻尼等因素会给负载端带来振动，导致工作端的轨迹跟踪精度不高。

Highly excited molecular vibration is nonintegrable or even chaotic due to its strong nonlinearity.

分子振动的高激发态，由于非线性导致其成为不可积乃至混沌体系。

The signal caused by the vibration of locomotive rolling bearing is usually a nonlinear and nonstationary time series.

机车滚动轴承引起的振动信号往往是一种非线性、非平稳的时间序列。

It is shown that because of the high nonlinear of oil film force of SFD, the nonsynchronous response and the bistable operation may occur in the rotor-SFD system, especially the latter with high vibration amplitude, which has a great effect on the reliability of the rotor system.

结果说明了由油膜力的高度非线性所引起的非协调及双稳态，特别是当转子需要频繁的通过双稳态区时，双稳态跳跃将使转子系统的振动迅速增大，在实际应用中应对其引起足够的重视。

However, Fermi resonance is an important role in the intramolecular vibrational energy transfer process, so we use the bend triatomic molecule model described by potential energy calculated from U(4) algebra, and the chaos of high excited molecular vibration can be studied by analyses of the intramolecular vibrational energy transfer process.

Fermi共振相互作用作为分子内能量转移的一种机制，在描述分子激发的完全振动方面有着重要的作用，因此，我们在构建弯曲三原子分子模型时引用了U(4)代数方法获得的势能面，从能量传递角度研究体系的混沌性质，是在多原子分子激发态领域研究非线性问题的合理延伸。

In this paper, their spectra of lattice vibration have been studied by Raman and Infrared Reflection technique, and the characteristics of the crystal structures as well as the case of binding in these crystals were analysed, and the non-linearities have been qualitatively illustrated.

本文用喇曼光谱和红外反射谱方法研究了它们的晶格振动光谱，分析了其晶体结构特点和晶体中分子的键合情况，并定性说明了其非线性光学性能。

Geometrical and physical parameters of components of the absorber in the virtual prototype follow from those technical data of a specific passenger car. Bench tests are conducted and a series of experimental results have been obtained by the MTS absorber test machine for the damping force-velocity which can be imposed in the virtual prototype for dynamic simulation. The piecewise, the hysteretic looped and the abnormal looped hysteretic force-velocity curves for the absorbers are, respectively, input into the prototype.

减振器阻尼力—速度特性是根据MTS减振器特性试验机试验结果，通过分段拟合，分别以分段线性、迟滞环和迟滞环畸变情况输入虚拟样机进行仿真分析，试验及仿真结果比较说明：减振器速度外特性采用迟滞环非线性，比采用双线性化模型更接近试验结果，能够更合理地解释试验现象；减振器阻尼力速度特性曲线出现畸变，如在复原行程初期迟滞特性曲线出现交叉现象，可以引发减振器系统动力特性的高频振动成分增加。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。