振动性的

Under the condition of running on the hard soil pavement with the total train mass, the riding comfort tests of the tractor-trailer combinations with the stiff and the flexible drawgear have been performed, and the dynamics longitudinal force has been studied. When the flexible drawgear was used, the theoretical results and the experimental data showed that the peak value of the dynamics longitudinal force, the peak value of the RMS of the dynamics longitudinal force, and the PSD both of the dynamics longitudinal force and of the longitudinal acceleration decreased largely.

以平稳随机路面激励状况下满载行驶作为挂接车辆的经常行驶工况，进行了挂接车辆以刚性牵引架及不同柔性牵引参数的柔性牵引装置牵引运行时的平顺性试验，柔性牵引理论分析结果与试验结果均表明，使用柔性牵引参数值接近优化值的柔性牵引装置后，动态纵向牵引力的峰值、功率谱密度峰值及均方根值均有了大幅度的降低；主车和挂车的纵向振动加速度功率谱峰值也有了很大的降低。

Then,according to the characteristics of LER measurement and characterization method,the influence factors of LER measurements using AFM,including the nonideal properties of the sizes and shapes of probe tips,the signal noises of AFM images,scan sampling intervals,the driving precision of piezoelectricity,cantilever oscillation and the free parameters of edge detection algorithm and so on,are analyzed theoretically and experimentally,and the methods for restraining and amending the measuring errors are respectively proposed.

然后，根据线边缘粗糙度测量与表征的特点，对各种影响因素，包括探针针尖尺寸与形状的非理想性、AFM扫描图像的噪声、扫描采样间隔、压电晶体驱动精度、悬臂梁振动以及线边缘检测算法中的自由参数等进行了理论和实验分析，并分别提出了抑制及修正的方法。

He personally experiment to determine the law of free-fall and found that: The object of the law of inertia, a reasonable law, such as when the pendulum vibration, the law of Motion put forward a campaigns of the principle of relativity, but also on the speed, acceleration and so on kinematics The basic concept of making a strict definition.

他通过亲自实验，确定了自由落体定律，发现：物体的惯性定律、合理定律、单摆振动的等时性、抛体运动规律，提出了运动的相对性原理，还对速度、加速度等运动学的基本概念做出了严格的定义。

In the last 20 years, many mathematicians used Moser Twist Theorem to study more complicated dynamics for nonlinear oscillations, such as the existence of quasi-periodic solutions and invariant tori, the Lagrange stability, etc.

近20年来，国内和国际上的一些数学家开始利用Moser的扭转定理来研究非线性振动的更为复杂的行为，如拟周期解和不变环面的存在性，解的Lagrange稳定性。

Main points are: perceptibility of information display in vibrating environment; rule of device layout in condition of integrated task and nonintegrated task; rule of multi-device and mono-device layout and the newest rule of ecological human-machine interface design.

摘 要 介绍了人机界面上信息显示的最新研究成果，包括振动环境中信息显示的可知觉性研究；针对整合任务和非整合任务仪表布置规则的研究；仪表混合布置和单一布置规则的研究以及最新的生态人机界面设计原则的研究。

The influence of tire stiffness,damper efficiency and ratio of sprung to unsprung mass on the index is simulated.The results show that the suspension test is a necessary measure to ensure the car running and driving safety

利用汽车的1/4振动模型，通过计算机数字仿真，分析了汽车簧上质量与簧下质量的比值、减振器效能的损失、轮胎刚度和汽车载荷等对车轮接地性指数的影响

Also new for the same car is a purple anodised aluminium steering set that increases durability in this area as well some new front drive cups, which reduce vibration of the drive shafts that can occur in cornering, providing more stable steering.

此外，新的为同一汽车是一个紫色电镀铝督导设置，增加耐用性在这方面，以及一些新的前驱动杯，从而降低了振动的传动轴，可以发生在转弯时，提供更稳定的督导。

Considering the requirement of real-time sampling, a solution was advanced, which synthetically used all the real-time mechanisms provided by Windows2000/XP. The way how to read and write the large file of signal

所开发的基于Windows2000/XP的振动信号监测与处理软件平台，在针对转子实验台的监测和动平衡等应用中，无论是实时性方面，还是精度方面，都取得很好的效果，为Windows2000/XP

After gear shaving cutter profile correction,the smooth and steady of the run of the toothed gear changes obviously,at the same time, gear shaving cutter profile correction reduces noises and improves the bearing capacity of the toothed gear and makes its life long.

通过对剃齿刀的修形，剃齿后明显改变了齿轮运转的平稳性，降低了齿轮的噪音和振动，提高了承载能力，延长了齿轮的使用寿

Analysis of experimental results confirm that the rising of temperature is equivalent to the reducing the frequency. The time-temperature equivalence is a commonness of saturated porous rocks.

试验结果表明，饱和多孔岩石都具有一个共同的特性－时间和温度的等效性，即降低温度与增加振动频率是等效的，这就是饱和多孔岩石的驰豫共性。

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。