The software also can be used as a diesel engine vibration real - time monitoring system , it can display the vibration wave when the diesel is working , analyze the real - time vibration data , and print the analyze results in reports forms 同时，该系统还能够用于柴油机振动状态监测，对振动波形进行实时显示，实时分析，对历史振动加速度生成报表等。
After that , an evaluation system is developed with labview . the system can read , show and analyze the signal in time - domain that achieved by the hardware . above that , it can analyze the signal in time - domain cut in any forms 该系统是在labview的环境下编写而成,能对采集到的振动加速度信号进行读取、显示以及频域上的各种分析,还能够对时域信号进行任何形式的截取分析。
The maximum transmission efficiency of two - stage three - ring gear reducer is 93 % , and the load distribution non - uniform coefficient is less than 1 . 1 , and its vibration acceleration is less than acceleration of ordinary three - ring gear reducer that has the same properties 该两级三环减速器的传动效率达93 %以上，载荷分配不均匀系数小于1 . 1 ，振动加速度值也小于同等传动能力的一般三环减速器。
Numerical simulation signal and vibration acceleration signal of a roughing mill main drive speed reduction unit have been decomposed by using empirical mode decomposition algorithm ; each component has been carried on spectral analysis 摘要运用经验模式分解算法对数值仿真信号及某轧钢厂粗轧机主传动减速机振动加速度信号进行了分解，从而得到若干个基本模式分量，对每个模式分量进行了频谱分析。
Results show that all the parts of the artillery produce vibration acceleration in the traveling course . the power spectrum is mainly in the low frequency segment . worse road surface and higher speed will cause higher power spectrum value of the acceleration response 结果表明火炮牵引行驶过程中各部件均产生振动加速度，其功率谱主要分布在在低频段，路况差、速度高则加速度响应的功率谱值高。
The method using wavelet packet analysis is proposed to extract fault information from vibration signal obtained from testing jig of tilting train . the vector comprised of the energy of signal in all spectrum bands is input to a feed forward neural network 利用小波包分析，将摆式车体试验台上采集到的振动加速度信号分解在相互独立的频带之p内，各频带内的能量值形成一个向量，将其作为神经网络的输入特征向量， 。
The on - train module was aimed to measure vibrations of the train in different directions , to obtain the speed , time , milestone , section and train number information of the running train , and to send the gained information to the ground station by cdma 车载系统主要完成列车运行时的车体各个方位振动加速度的采集,列车运行时速度信息,时间信息,里程信息,区间信息以及车次信息的获取,以及把采集的加速度与获取的各项信息通过cdma发送到地面系统。
In this study , based on bispectrum and bicoherence extraction of vibration acceleration signals at spindle end of a vertical machining center while milling operation , change rules of bispectrum and bicoherence of the signals were analyzed for the progressive wearing process of the flank wear land of the milling cutters 通过提取铣削加工过程中机床主轴端振动加速度信号的双谱及其双相干系数，分析了铣刀后刀面渐进磨损过程双谱及其双相干系数的变化规律。
With the input of a vibration acceleration history of subway train , a full dynamic analysis of soil - pile - structure is carried out . the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed . some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source , vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source , the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction , the vibration velocities and accelerations at the end points of each story of a building are the nominal identical , which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings 本文以北京地铁八王坟车辆段地上超大结构(车辆段大平台及其上的小区楼房)及其地基基础为研究对象，在研究和分析有关资料的基础上，用快速拉格朗日有限差分法软件flac建立了二维数值分析模型，并以列车振动加速度时程作为模型输入，进行了地基?桩基础?地上结构的整体动力学分析，分析了地铁列车运行产生的振动在地面的传播规律及其对地上结构的影响，得到了如下结论： ( 1 )随着与地铁线路距离的增大，地面的振动强度有减小的趋势； ( 2 )地面竖直方向的振动强度较之水平方向的略大； ( 3 )随着与振源距离的增大，在水平方向上，地上各幢楼房的振动强度由底层和顶层的最大、中间层的最小逐渐过渡到沿楼层增高而减小； ( 4 )在竖直方向上，每幢楼各层端点的振动速度、加速度完全相同，表明楼房各层在竖直方向上的运动状态一致； ( 5 )各幢楼房竖直方向的振动强度比水平方向的大； ( 6 )增加轨道弹性是减轻地面和地上建筑振动的有效途径。
